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NNadir

(36,578 posts)
Fri Sep 12, 2025, 05:32 PM Friday

The famous Fukushima radioactive tuna fish and all of the other fish and bivalves in the sea.

I frequently refer to the famous Fukushima tuna fish that was described in this paper, which I reference repeatedly because, well, it would be funny were it not such a barometer of public selective attention:

N.S. Fisher,K. Beaugelin-Seiller,T.G. Hinton,Z. Baumann,D.J. Madigan, & J. Garnier-Laplace, Evaluation of radiation doses and associated risk from the Fukushima nuclear accident to marine biota and human consumers of seafood, Proc. Natl. Acad. Sci. U.S.A. 110 (26) 10670-10675. This paper was a follow up to an earlier paper, also in PNAS, reporting that a radioisotope clearly originating from the Fukushima event, 134Cs, had been detected in a tuna fish caught off the coast of California.

To get a feel for why the authors published the above referenced paper, it is useful to read the opening excerpt:

Recent reports describing the presence of radionuclides released from the damaged Fukushima Daiichi nuclear power plant in Pacific biota (1, 2) have aroused worldwide attention and concern. For example, the discovery of 134Cs and 137Cs in Pacific bluefin tuna (Thunnus orientalis; PBFT) that migrated from Japan to California waters (2) was covered by >1,100 newspapers worldwide and numerous internet, television, and radio outlets. Such widespread coverage reflects the public’s concern and general fear of radiation. Concerns are particularly acute if the artificial radionuclides are in human food items such as seafood. Although statements were released by government authorities, and indeed by the authors of these papers, indicating that radionuclide concentrations were well below all national safety food limits, the media and public failed to respond in measure. The mismatch between actual risk and the public’s perception of risk may be in part because these studies reported radionuclide activity concentrations in tissues of marine biota but did not report dose estimates and predicted health risks for the biota or for human consumers of contaminated seafood. We have therefore calculated the radiation doses absorbed by diverse marine biota in which radioactivity was quantified (1, 2) and humans that potentially consume contaminated PBFT. The aim of this paper is to provide estimated doses, and therefore objective risk estimates, to humans and marine biota...


I added the bold.

The authors note that the natural radioactivity, related to 210Po, which exists in secular equilibrium with the roughly 4.5 billion tons of uranium in the world's oceans, and 40K, a naturally occurring radioisotope of potassium, an essential element, dwarfs the concentration of the Fukushima related 134Cs.

People sure love to carry on about Fukushima; they don't give a rat's ass that the planet is burning, or that uncontrolled release of fossil fuel waste has killed more than 80 million people since the reactors were struck by a tsunami.

Indeed, the fossil fuel industry has representatives who show up around here who, when they're not trying to rebrand fossil fuels as "hydrogen," love to carry on about Fukushima, insipidly and disingenuously, for example, representing that the release of tritiated water from tanks at the Fukushima site is a major disaster, and the collapse of the planetary atmosphere isn't a problem. The fossil fuel industry loves the antinuclear cults because nuclear energy is the only tool that is technologically capable of driving the fossil fuel industry out of business.

Despite much excitement, neither the Fukushima tuna fish nor the tritiated water being released has led to a death toll equivalent to the last half hour death toll associated with dangerous fossil fuel waste, aka "air pollution," which killed roughly 400 people while we’ve been chatting so nicely.

Besides the Fukushima tuna fish, which was caught, killed and had tissue sections placed into a scintillator detector to find a few atoms of 134Cs, there are all of the other fish in the sea, and for the hell of it, let's throw in all the world's bivalves, like, say, Oysters.

I will briefly reference two recent papers that appeared in the two recent issues of the scientific journal Environmental Science and Technology which I read regularly. They are these:

Microplastic Distribution Patterns in Fish and Implications for Safe Consumption Xiaoxia Sun, Liujiang Meng, Junhua Liang, Qingjie Li, Juan Du, Mingliang Zhu, Yongfang Zhao, and Shan Zheng
Environmental Science & Technology 2025 59 (33), 17393-17402

...and...

From Spat to Adult: Investigating Microplastic Accumulation in Crassostrea hongkongensis of Varying Sizes Jingmin Zhu, Zhixue Wang, Wenjing Li, Chuchu Hu, Zuchun Chen, Jiana Li, and Wenlu Lan Environmental Science & Technology 2025 59 (34), 18372-18380.

Crassostrea hongkongensis is a species of Oyster found in the South China Sea; the organism is a popular food item.

The introduction to the first of these two EST papers:

As global plastic waste production continues to increase significantly in the coming decades, microplastics (MPs) remain one of the most challenging pollutants in environmental contamination worldwide. (1) The European Food Safety Authority (EFSA) established a detailed classification in 2016, according to which MPs refer to plastic particles with sizes between 0.1 and 5000 μm, whereas nanoplastics refer to particles ranging from 0.001 to 0.1 μm in size. (2) Later, the International Organization for Standardization (ISO) defined the size of large MPs as between 1000 and 5000 μm in 2023 and MPs as between 1 and 1000 μm (ISO 24187). (3) Due to their complex sources, small size, and resistance to degradation, these pollutants easily disperse across various environmental media. (4) Marine environments face particularly severe pollution as MPs enter these areas in large quantities through rivers, wastewater, and other pathways. (5) MPs are distributed throughout different ocean water layers, (6) aquatic plants, (7) sediments, (8) zooplankton, (9) and other marine organisms. (10) When ingested by marine organisms, MPs can cause both physical and chemical harm, including but not limited to gastrointestinal blockages, (11) inflammatory responses, (12,13) endocrine disruption, (14) and neurotransmission. (14) These effects threaten the health of marine species and may be transferred through the food chain to humans, posing potential food safety risks. Studies have shown that MPs have been detected in various human cells, tissues, and organs, indicating a potential threat to human health. (15)

Assessing high-risk species affected by MP pollution can help identify potential human health risks. (16) Human ingestion of MPs occurs predominantly through contaminated food and water, with seafood representing the most critical exposure vector owing to bioaccumulation in marine organisms. (17) Globally, annual per capita aquatic animal consumption totals 20.6 kg, providing at least 20% of the animal-derived protein for 3.2 billion people. (18) Fish, as keystone species in marine ecosystems, represent the primary resource in fisheries, accounting for 84.6% of the total global catch, and serve as a primary source of protein for humans. (18) It has been reported that MPs have been found in more than 300 fish species across various ecosystems, (19) with these particles detected in critical tissues such as the intestines, (16,20−23) gills, (16,20,21) internal organs, (24) and muscles...

...Given the threat of marine MP pollution to fish and the role of fish as a key source of aquatic protein for humans, this study systematically investigated MP contamination in the intestines, gills, and muscles of 1,075 fish from 37 species in one of the highest-yielding fishing regions globally. The objectives of this study are as follows: (1) to reveal the differences in MP abundance and characteristics across various fish tissues; (2) to systematically analyze the main factors influencing MP accumulation in fish, considering factors such as feeding strategies, habitat, trophic levels, and biological indicators; (3) to calculate the per capita MP consumption by humans through the ingestion of MPs in caught fish; and (4) to assess the MP exposure risks faced by humans on the basis of different fish consumption habits.


The paper has a nice description of the science of the investigation. Regrettably, I don't have too much time to spend on it, but maybe we can look at a few pictures.



The caption:

Figure 3. Differences in MP abundance and length in the gills and guts of fish with different feeding habits and habitats. MP abundance in items/ind. (a) and items/g (b) and mean MP length (c) for each feeding type. MP abundance in items/ind. (d) and items/g (e), and mean MP length (f) for each habitat type. * and ** represent p less than 0.05 and p less than 0.01, respectively.




The caption:

Figure 4. Correlation of MP abundance in different fish tissues with fish biological traits. Correlation analysis between trophic level, length, weight, and MP abundance in the gills and guts of all of the fish species (a). Fitted relationships between fish length (b), weight (c), and MP abundance in the gills and guts.




The caption:

Figure 5. Abundance of MPs in global marine fish. The MP abundance in marine fish is presented in two units: items/ind. (a) and items/g (b) on the basis of data reported in the references. Base map sources: Esri, Garmin, GEBCO, NOAA NGDC, and other contributors.


The authors state that a limitation of their study is that they were only able to detect microplastics, and not nanoplastics using their research tools.

They advise eating muscle tissue from predator fish; this covers tuna but not sardines for example.

Nevertheless, they estimate based on average human consumption of fish, that the mean consumption of microplastic particles (not including nanoplastic particles) finding its way into human bodies is about 56,000 particles per year.

The second EST paper covers Oysters, which are somewhat different than fish, but generally, when they are eaten, are eaten whole.

From the introduction:

Microplastics (plastic particles less than 5 mm) are a pervasive global pollutant, (1) infiltrating ecosystems from urban coastlines to remote protected areas, including alpine snowpacks, (2) Antarctic sea ice, (3) and even rainfall over protected wilderness regions. (4) Laboratory studies have shown that microplastics can have direct harmful physiological effects, including physical damage, (5,6) reduced growth, (7,8) and decreased survival (9,10) and reproduction rates. (6,11) In addition, the release of toxic additives or adsorbed pollutants from microplastics poses a threat for wildlife and human health. (12,13) Despite extensive research, physiological impacts of microplastics at environmental concentrations in wild bivalves remain poorly characterized due to confounding environmental stressors.

Bivalves, due to their sedentary nature, filter-feeding behavior, and ability to accumulate a wide range of contaminants─including microplastics─serve as ecologically relevant receptor organisms within this framework. (14,15) Bioaccumulation refers to the process by which organisms absorb substances, such as microplastics, at a rate faster than they can eliminate them, leading to a gradual buildup in their tissues. (16) As a commonly consumed seafood, bivalves are eaten whole without removing the gastrointestinal tract, making them a potential pathway for microplastics to enter the human food chain. (17) Numerous studies have reported microplastic accumulation in bivalves, often at concentrations exceeding those found in their surrounding environments. (18−21) Some studies have identified a positive correlation between microplastic levels in bivalves and their environments. (20,21) However, findings from recent field studies remain inconsistent... (22−25)


However, it appears that Oysters, unlike fish, while they incorporate microplastics, also have mechanisms for rejecting them:

...Microplastics can be captured on the gills and palps of bivalves, where they may be either rejected as pseudofeces, assimilated directly through the gill microvilli, or transported into the digestive system. (8,28,29) It is demonstrated that bivalves can sort particles based on their physical (e.g., size, shape, flexibility, and density), chemical, and nutritional properties. (30−32) Zhao et al. (32) reported that over 40% of microplastic particles were either rejected in pseudofeces or expelled in feces. Particles between approximately 6 and 200 μm are captured effectively and are more likely to be ingested if they have hydrophobic surfaces, organic coatings, or lower negative surface charges. (28) Larger plastic particles (around 500–1000 μm, including spheres and fibers) are also efficiently captured but are more likely to be rejected as pseudofeces. (28) Depuration processes significantly reduce microplastic loads in bivalve tissues: (33) blue mussels can eliminate up to 63% of accumulated microplastic fibers within 6 h, (34) while brown mussels exhibit a 29–46% reduction in total microplastic loads over 93 h...


...but...

Numerous toxicological literature has focused on the effects of microplastics on bivalves, yet consensus on the toxic effects and underlying mechanisms remains elusive. (37) Laboratory studies conducted at unrealistically high exposure levels have uncovered several molecular mechanisms of microplastic toxicity, including inflammatory responses, DNA damage, neurotoxicity, cytotoxicity, and alterations in metabolomics. (14,37) Among these cellular responses, oxidative stress has been identified as a primary mechanism contributing to microplastic-induced stress and toxicity. (38,39) Microplastics can disrupt the integrity of plasma, endolysosomal, and nuclear membranes, leading to pore formation and the subsequent generation of reactive oxygen species (ROS) from mitochondria. (37) Generally, exposure to microplastics leads to an increase in the activity of the antioxidant enzymes...

...Recent laboratory bioassays (41) revealed that exposure to polyethylene (PE) microplastics significantly increased mortality and triggered oxidative stress in both mussels and clams. In contrast, bivalves showed minimal mortality when subjected to equivalent concentrations of natural silt particles. Notably, the combined exposure to PE and silt had a synergistic effect, exacerbating mortality and oxidative stress in bivalves. In the environment, organisms exposed to microplastics are also subjected to a multitude of environmental stressors. Recent assessment reports indicate that sublethal impacts of microplastics─such as impaired feeding, immunotoxicity, and developmental anomalies─become pronounced when multiple stressors co-occur. (42−45) The scientific community has repeatedly called for further investigation into the toxicological effects of microplastics in wild environments. (14,46−48)...


Some graphics from the paper:



The caption:

Figure 2. Linear regression analysis of the relationship between oyster size and microplastic abundance in whole soft tissue (n = 8 sampling events × 4 size classes × 5 sites × 6 replicate oysters = 960 total oysters, 160 points). Each point represents pooled data from six oysters. The solid lines represent the linear regression lines, while the dashed lines depict the 95% confidence intervals around these regressions. (a,b) Absolute burden: Microplastic abundance (particles per individual), calculated as the total microplastics in three tissues divided by six. This value is plotted against shell length (a) and tissue weight (b). (c,d) Tissue-normalized burden: Microplastic abundance (particles per gram wet tissue), calculated as total microplastics divided by the combined wet weight of the three tissues. This value is plotted against shell length (c) and tissue weight (d).




The caption:

Figure 3. Distribution of microplastics within oyster tissues (Kruskal–Wallis test and Dunn’s multiple comparison test, n = 720 oysters per organ). (a) Microplastic count per individual oyster organ. (b) Microplastic count per gram wet weight of organ tissue.




The caption:

Figure 4. Temporal trends in microplastic abundance in oysters of different sizes and organs from May 9 to August 3, 2020. (a–d) Microplastics in whole soft tissue for oysters of 2, 4, 7, and 10 cm shell length during the period. Blue line: Microplastic count per individual oyster. Green line: Microplastic count per gram wet weight of tissue (n = 30 oysters per sampling event and per size class). (e,f) Microplastic count per individual organ (e) and per gram wet weight of organ tissue (f) during the period (n = 90 oysters per organ and per sampling event).




Figure 5. Alterations in biomarkers of oysters and their correlations with microplastic concentrations. (a–c) Temporal trends in catalase (CAT), Na+/K+–ATPase (NKA), and malate dehydrogenase (MDH) activity (n = 15 oysters per sampling event and per size class). (d) Spearman correlations: biomarkers vs microplastics. (e–h) Regression analysis: microplastic concentration vs CAT activity across oyster size classes (2, 4, 7, and 10 cm; n = 25 points per class).


It would appear that oysters are a less potent food item than fish for human ingestion of microplastics.

This said, it appears microplastics are not good for the oysters.

From the conclusion of the paper:

Correlation analysis revealed a significant association between the microplastic concentration and CAT activity specifically (Figure 5d). Notably, a significant negative linear relationship was observed in 2 and 4 cm oysters (Figure 5e,f), while this association diminished with increasing size (Figure 5g,h). This size-dependent pattern aligns with our earlier finding of higher microplastic concentrations per unit tissue mass in smaller oysters. Experimental studies have proposed oxidative stress as a major mechanism behind microplastic-induced stress and toxicity. (38,39) Microplastics can disrupt the integrity of plasma, endolysosomal, and nuclear membranes, leading to pore formation and the subsequent generation of reactive oxygen species (ROS) from mitochondria. (37) Typically, during early exposure to microplastics (less than 7 days), bivalve cells maintain redox balance by activating antioxidant enzymes, including superoxide CAT, dismutase (SOD), glutathione sulfoxide (GST), and glutathione peroxidase (GPx). However, prolonged exposure (≥7 days) often overwhelms these defenses, leading to antioxidant inhibition and oxidative damage. (37) Our observed negative correlation between CAT activity and microplastic exposure over two months provides field evidence supporting microplastic-induced oxidative stress in a natural setting.


Nevertheless, this post is an effort to make a point which is that people routinely carry on about radioactivity - generally from a position of extreme ignorance - while ignoring issues in pollution that actually matter. (I strongly suspect that more people have died from air pollutants released to power computers used to whine about Fukushima than actually died from radiation exposure, a number that is, if not zero, then close to it.

Have a nice evening and weekend.



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moniss

(8,028 posts)
2. I think a great many people are concerned
Fri Sep 12, 2025, 07:34 PM
Friday

about all of the environmental issues whether they are nuclear, fossil fuels, over-population, resource extraction pollution, consumer and industrial waste disposal, leaking landfills etc. and the various negative effects on the biology of the living things on the planet.

But I am curious about your figure of 80 million deaths in the last 14 years from "uncontrolled release of fossil fuel waste" which I take it you mean air pollution. I would be interested to see how many of the 80 million deaths had doctors specifically attribute their deaths to solely "air pollution". We know we have increased cases of respiratory disease due to air pollution but some sourcing for your number would be helpful for inspection in order to gauge the voracity of that number.

At the same time that you push for nuclear power plants, which has the only real application being the production of electricity, you also have railed against electric vehicles operating on battery technology and so I'm curious what your transportation solutions are for the planet that can be scaled quickly.

Automotive emissions have come down dramatically on a per vehicle basis from where we were 30 years ago. Our overpopulation and unchecked consumerism has greatly increased the number of vehicles however per capita on the planet and so we still have a major problem in trying to get people to drive more efficiently, maintain their vehicles, reduce idling etc.

When it is all said and done we have as much a "people" problem as we do a "source" problem. Getting people to use mass transit and forgo their car, carpooling, combining shopping trips etc. are all things that a certain percentage of the population does but obviously nowhere near a majority.

Early on I took environmental courses way back in the '70's and the fundamental and inescapable conclusions by people looking at the issue of the environment were that the "problems" are not just matters of technology or regulation. All of it is linked with people, behavior and population growth. So when we speak of "pollution" and cutting it back it is not just an application of technology. Our automotive emissions technology shows us that we can reduce that on a per car basis by leaps and bounds but if we vastly increase the number of vehicles and largely fail to maintain them and operate them in a more efficient manner we aren't getting anywhere near the result we could.

Many people keep demanding higher and higher speed limits which means worse fuel mileage and increased emissions for example. Many people complain about plastics yet they largely keep right on buying the containers, bags and products that contain them. Many people complain about pesticides and other chemicals in agriculture but they won't garden, window garden, pay a higher price for naturally grown crops or naturally raised animals. I'm not talking about people who can't afford to purchase higher priced naturally raised/grown food.

Suffice it to say that yes some of the people who complain about this aspect or that of environmental issues are being more of a contributor to problems than they might realize or care to admit or educate themselves about. The long and the short of it is that any approach that is going to sustain us on this planet has to be comprehensive and address many difficult areas. Two of the most difficult are the effects of overpopulation along with the huge gap between developed and underdeveloped nations. It feeds increasing consumerism and we end up shooting ourselves in the foot. But how do we tell people who are doing less well than some that they should not aspire to some of the things those in developed nations have?

Doing better and "having" is what drives a capitalist system. Increased spending, increased consumption, increased profits. But what do we replace that with if we even can do it in time? How do we get that to be accepted? All the answers in the world are for naught if society and cultures won't accept them and instead resort to wars of "survival of their way of life" scenarios.

So in conclusion I can say I am more pessimistic than optimistic about the long term survival of humans on the planet. Mainly because of the "people problem" aspect to things. A small example in closing is that I religiously pour out any and all liquid contents from bottles, cans, packages down my drain. I do not carelessly let anything with a water component end up trapped in a landfill rather than returning it to the water processing cycle. It may not seem like much to some but taking personal action is the point. Like turning off lights when leaving a room of the house or apartment. Do what you can in your own life to be better about our environment. Even if it's not everything it can be something. Do what you can for those you encounter every day. Small is beautiful as they say.

NNadir

(36,578 posts)
5. The reference for the death toll I attach to antinukism is from one of the most prominent medical journals...
Sat Sep 13, 2025, 08:12 AM
Saturday

...in the world, Lancet.

I reference often in this space, including many times, text with an excerpt, as I will now.

It is here: Global burden of 87 risk factors in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019 (Lancet Volume 396, Issue 10258, 17–23 October 2020, Pages 1223-1249). This study is a huge undertaking and the list of authors from around the world is rather long. These studies are always open sourced; and I invite people who want to carry on about Fukushima to open it and search the word "radiation." It appears once. Radon, a side product brought to the surface by fracking while we all wait for the grand so called "renewable energy" nirvana that did not come, is not here and won't come, appears however: Household radon, from the decay of natural uranium, which has been cycling through the environment ever since oxygen appeared in the Earth's atmosphere.

Here is what it says about air pollution deaths in the 2019 Global Burden of Disease Survey, if one is too busy to open it oneself because one is too busy carrying on about Fukushima:

The top five risks for attributable deaths for females were high SBP (5·25 million [95% UI 4·49–6·00] deaths, or 20·3% [17·5–22·9] of all female deaths in 2019), dietary risks (3·48 million [2·78–4·37] deaths, or 13·5% [10·8–16·7] of all female deaths in 2019), high FPG (3·09 million [2·40–3·98] deaths, or 11·9% [9·4–15·3] of all female deaths in 2019), air pollution (2·92 million [2·53–3·33] deaths or 11·3% [10·0–12·6] of all female deaths in 2019), and high BMI (2·54 million [1·68–3·56] deaths or 9·8% [6·5–13·7] of all female deaths in 2019). For males, the top five risks differed slightly. In 2019, the leading Level 2 risk factor for attributable deaths globally in males was tobacco (smoked, second-hand, and chewing), which accounted for 6·56 million (95% UI 6·02–7·10) deaths (21·4% [20·5–22·3] of all male deaths in 2019), followed by high SBP, which accounted for 5·60 million (4·90–6·29) deaths (18·2% [16·2–20·1] of all male deaths in 2019). The third largest Level 2 risk factor for attributable deaths among males in 2019 was dietary risks (4·47 million [3·65–5·45] deaths, or 14·6% [12·0–17·6] of all male deaths in 2019) followed by air pollution (ambient particulate matter and ambient ozone pollution, accounting for 3·75 million [3·31–4·24] deaths (12·2% [11·0–13·4] of all male deaths in 2019), and then high FPG (3·14 million [2·70–4·34] deaths, or 11·1% [8·9–14·1] of all male deaths in 2019).


I added the bold so that everyone, including the antinukes I hold responsible for this state of affairs can find easily, irrespective of their educational and reading level.

For convenience, I often round the number for the sum of women killed by antinukism and men killed by antinukism (6.67 million) up to 7 million per year, remaining well within the error bars. Even at 6.67 million, in the 14 years during which we've had people here whining and pissing in hopes of demonstrating someone will be shown to have died from radiation at Fukushima, while not giving a shit about the roughly 20,000 people who died from seawater in the same event, this works out to 93.4 million deaths from air pollution.

The problem is a lot more serious than what "feel good" bourgeois conceits and practices like car pooling and riding mass transit. Right now there are about than 1.5 billion people on this planet who lack access to any form of improved sanitation. The issue with them is not about taking a train vs driving.

As for driving I would suspect, but cannot prove, that this number of people who lack basic sanitation includes the cobalt slaves in the "Democratic Republic" of Congo, who dig cobalt for bourgeois batteries so Westerners can declare themselves "green."

I find no benefit whatsoever to attaching riders to the problem on socioeconomic fantasies to cover for the consumerism in which we all participate.

Irrespective of socioeconomics it is clear from an engineering standpoint that nuclear energy is the only sustainable low carbon form of energy there is. All one needs to do is to compare the carbon intensity of France with that of Germany to see this.

Have a nice weekend.

moniss

(8,028 posts)
6. I think you may very well be misunderstanding
Sat Sep 13, 2025, 01:38 PM
Saturday

Last edited Sat Sep 13, 2025, 03:14 PM - Edit history (1)

the study you reference and so I encourage you to perhaps ask someone in the medical field to explain what is meant by "risk factors in attributable deaths". A factor showing up in x number of deaths as a high risk factor from an estimation calculation does not mean that x number of people are known to have died from that risk factor. In fact you might want to read up on the problems of using such estimation calculations etc. cited here for example in Lancet, unless you now consider them unreliable, as published in Volume 20 Issue 12 December 2020.

Your purpose in pointing out the problems of sanitation for some people doesn't let you escape from your apparent inability to provide your transportation proposals since even if you could snap your fingers and we would instantly have all generation of electricity be from nuclear power you are still left with the transportation question. Tunnel vision on one aspect of source pollution doesn't cut it as I explained previously. So what is your remedy for transportation as a source of pollution? Unless you have one then your cries about fossil fuel pollution are poorly thought out, not comprehensive and in the end merely complaint with only a fraction of a solution.

Years ago when engineers would come to me with myopic proposals some would find it instructive to be told to broaden their consideration to include other aspects of a system or problem and engage other engineers etc. with specialty in those aspects. Others would take it as some kind of attack that they must defend. The better course is the first since the engineer will become more educated in the application of engineering. Some engineers are destined, when they can't grasp broader implications of a problem, to be someone who can design but have given no thought, or think there is no need, to the consequences to the system of the application of their design. Other engineers learn to look at problems comprehensively and usually enjoy better success in applying themselves to questions with broad implications.

If you had your wish instantly granted and all power generation were nuclear we are still left with massive source pollution from transportation. Your option as I said is myopic. I think you can do better since I do believe you have the skills if you broaden rather than fixate. You can do better. Railing against air pollution from fossil fuels is correct but having a proposal to eliminate only one source, keeping in mind the fossil fuel pollution the solution would generate from construction/operation/maintenance, while being adamantly against additional source pollution reduction by using the product of your solution in a mixed use transportation strategy to reduce overall fossil fuel pollution is a justification at odds with itself.

Massive reduction in fossil fuel use in transportation is not an overnight thing and it requires an approach that takes many parts to the mix. While we transition and develop technologies we certainly may be using some technologies that also have some negative environmental impacts. But this is the case for many things we engineer and apply as our solutions develop for many different things in our world. Battery technology for example is moving along and we certainly are mindful of environmental problems associated with current technology and indeed it provides some of the push to develop battery technology that moves away from those problems. Other generation technologies as well develop and change over time.

Your solution is incomplete, has unaddressed problems of it's own, has a quite long time frame for implementation and while it may be a long term answer in a mix of technologies it is not a comprehensive answer that can be relied upon yet for many years to come due to these cited factors.

https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(20)30485-0/abstract

NNadir

(36,578 posts)
7. Um, I think I can read quite well, thank you.
Sun Sep 14, 2025, 06:07 AM
Yesterday

I have been a working scientist engaged in the health industry (pharmaceutical) for more than 40 years, and I spend at least 20 hours a week reading on a wide range of scientific subjects. I have full access to most of the world's scientific literature beyond the abstracts.

I also think about what I read.

The Lancet article sited specifically uses the words "deaths," which are attributable to air pollution. If, for some reason, there are bloggers who can't comprehend the statements "air pollution (2·92 million [2·53–3·33] deaths or 11·3% [10·0–12·6] of all female deaths in 2019)" and "followed by air pollution (ambient particulate matter and ambient ozone pollution, accounting for 3·75 million [3·31–4·24] deaths." I guess I can only be appalled or bemused at the low level of reading comprehension.

There are some pretty typical and frankly nonsensical features of people who object to my position on nuclear power.

One is that nuclear power has "problems." This of course, is a very weak bit of nonsensical thinking, as if nothing else has "problems." My point, which seldom gets through the head of sloganeering antinukes repeating the same tripe over and over and over and over is as follows:

"Nuclear power does not need to be risk free to be vastly superior to everything else. It only needs to be vastly superior to everything else, which it is."

As for the nonsense about "taking a long time," I note that the United States, with engineers who worked with slide rules or computers less powerful than a modern Apple watch, built more than 100 nuclear reactors in this country while providing the lowest cost electricity in the industrial world.

Then, uneducated kibitzers, who made the absurd calculation at a moral level than can only be described as detestable, ran around saying that if they could, even with their poor educations possibly resulting for limited reading comprehension skills, imagine anyone anywhere at any time dying from exposure to radiation, it was therefore acceptable for millions of people to die from fossil fuel waste each year, at a rate, according to the Lancet publication, at a rate of around 19,000 people per day.

Most of those 100 reactors still operate, albeit in a climate of continuous attack by people who don't understand a single thing about nuclear technology.

The sloganeering nonsense that nuclear power "takes too long" to build is an outgrowth of the deliberate destruction - let's call it "vandalism in service of ignorance" - of nuclear manufacturing in this country. Again, the United States once built its reactors in a period of 25 years. The metaphor I most often use to describe the antinukes responsible for vandalizing and destroying this infrastructure is to describe these awful people as "Arsonists complaining about forest fires."

This year, China will surpass France as the world's largest producer of nuclear energy. They have built 58 nuclear reactors, all but two in this century, and have 33 under construction

The big lie that solar and wind junk, the latter spewing plastics - the point of the OP is about plastics - off their turbine blades while they spend less than 25 years of unreliable operation degrading before becoming landfill, is that they are easily and quickly built. The unit of energy is the "Joule," and not the "Watt," the latter used by barely transparent liars to represent that so called "renewable energy" matters.

A Commentary on Failure, Delusion and Faith: Danish Data on Big Wind Turbines and Their Lifetimes.

I get taken to task by whiny antinukes around here for reproducing this table, which uses the unit of energy, repeatedly, as if repeating data somehow made it invalid:




IEA World Energy Outlook 2024
Table A.1a: World energy supply Page 296.

The table consists of two parts: Soothsaying and data. I refer only to the data, since as someone who has followed and downloaded these WEO reports for decades, I find the soothsaying in them rather dubious.

In an atmosphere of wild cheering and at a cost of trillions of dollars, combined the solar and wind crap strewn all over the planet on ruined landscapes, produced just 16 exajoules of energy combined. Nuclear power, attacked continuously by a bunch of fossil fuel coddling poorly educated sloganeering malcontents, in an atmosphere of mindless vituperation, produced roughly 30 Exajoules in the same period.

Clearly building solar and wind crap, tearing the fuck out of pristine wilderness, and mining materials like maniacs, isn't "fast," mindless bullshit sloganeering to the contrary.

As for the carrying on about "transportation," I have yet to meet a single antinuke who cares more about the health of the planetary atmosphere than they do about their fucking cars.

I'm not sorry to report that in my view, the car CULTure is not sustainable in any form. It is possible to fuel transport vehicles in a closed carbon cycle using the wonder fuel DME, which is accessible by process intensification using high temperatures. I've written about this as a source of exergy recovery from fission heat many times in this space and elsewhere.

To the extent we want independent powered vehicles for various purposes, some better than others - to the extend we can afford them, which is questionable - the key is wise utilization of primary energy, with exergy recovery, primary energy of which there is only one environmentally, materially, and economically available form, nuclear energy.

I trust you're having a pleasant weekend.

moniss

(8,028 posts)
8. Only people
Sun Sep 14, 2025, 12:19 PM
Yesterday

ignorant of wind power in Iowa, for example, would make such a false claim of "only a useful life of 25 years". I have been involved in these facilities throughout the Plains and Midwest for longer than your claim and I can tell you that other than routine maintenance on gearboxes or upgrades they go along quite well. Your vaunted nuclear plants are not maintenance free so just stop with the nonsense.

Nobody cares how long you've been in the health industry. You can still be short-sighted in your proposals and as I have noted you have no solutions put forth for transportation. Your writings always attack and belittle those who express concerns and from an engineering standpoint that approach holds little of value.

I've worked with such people in the past and they were always a net negative to any working group because of their inability to conduct themselves in a collegial manner rather than picking fights, ridiculing other team members and never missing an opportunity to express to all of the group that only they are right about anything and everything. These kinds of people take any critique of their views or cautions about additional considerations to be a personal attack and they respond with more of their useless and counterproductive putdowns etc.

Some very intelligent people in science and engineering are also some of the least productive because of these problems in their approach and manner. The more extreme examples are the ones I knew who were brilliant but despite that you could not let them into a meeting with colleagues or people from outside because they would invariably start yelling, belittling and swearing at people. So they were useful for limited purposes because they never understood that an engineering meeting and review is not there for the purpose of bowing to them but rather for the purpose of professional assessment across disciplines so that projects and proposals are vetted across those disciplines with input given and considered about all manner of items and aspects of the project/proposal.

Working with and managing people who behave in their profession in the ways I've described is misery for colleagues and managers and ends up being counter-productive and bad for morale, collegiality and cohesiveness of working groups. Eventually it can get so bad that the person has to be let go because they are an overall net negative and refuse to improve their approach. Sadly I've seen this before and I recognize it when I see it. You couldn't get me to want to work with such people again for all the money in the world. In technical fields the approach of "I'm always right and the rest of you aren't" is always a negative. It can often be the result of an education that focused on "numbers and science" without giving an education about the process and how to work with people.

A nationally highly regarded Engineering school in my area produced several engineers who came my way who were great on "the numbers, materials knowledge etc." and had high grades but their ability to write a memo or report was atrocious with grammar, spelling and construction that would have failed 8th grade. In other words they may have been very good about something but they couldn't communicate it effectively because their "higher education" didn't consider training their students to communicate effectively to be important. It is not dissimilar to schools not understanding the need to educate about the professional process and things like the engineering review process, it's purpose and how to effectively and constructively take part. Been there done that.

On the subject of "attributable" or "attributable risk factors" it is faulty to imply to people that this is the same thing as "verified cause of death". Estimations of effects or potential effects based on risk factors are precisely and only estimations based on formulas. As the Lancet article I linked points out there are issues with all of it that need to be recognized rather than flailed at and denied. Recognizing them and working on them is the proper process.

But this dialogue has gone as far as is useful and anything further would just be circular etc. Have a nice Sunday and keep trying to always work better.

NNadir

(36,578 posts)
9. You are aware, are you not, that the Danes for years, kept an open database on the performance of every...
Mon Sep 15, 2025, 04:27 PM
1 hr ago

...wind turbine, operating and decommissioned in their offshore oil and gas drilling hellhole of a country?

They stopped updating it when it became clear that their systems were unreliable and didn't last. The average lifetime before decommissioning for those decommissioned was a little over 17 years.

Again, in case any so called "renewable energy" apologist missed it, I analyzed this data sometime back in this space.

A Commentary on Failure, Delusion and Faith: Danish Data on Big Wind Turbines and Their Lifetimes.

I'm perfectly happy with the level of detail I provided in that post, and a the risk of being called rude by stating something called "truth," I provide a few excerpts of that post, of which I am proud:

To understand the average lifetime of wind turbines, it is almost certainly better to look at those that have been decommissioned, those listed in the the afmeldte, "decommissioned" tab. Denmark has built 9,740 turbines and decommissioned 3,444 of them, roughly 35% in "percent talk." The average age of decommissioned wind turbines is 17 years and 317 days, slightly longer than the 2018 figure I calculated back then, which was 17 years and 283 days, an improvement of a whopping 34 days...

...There are 1,230 commissioned wind turbines in Denmark that are larger than 2000 kW (2MW). There are 40 decommissioned wind turbines in Denmark that are larger than 2000 kW (2MW).

There are commissioned two wind turbines in this class that have operated for more than 20 years, both have a power rating of 2300 kW, 2.3 MW. One, the oldest in the set, is a prototype, a turbine located at Ikast-Brande. It's not performing well. If one takes the average of its two highest years of energy production, and compares it to the most recent complete year of data, that of 2021, one can calculate that in 2021 it produced just 36.01% (in "percent talk" ) of the average of its two best years.

Another commissioned large wind turbine, an 8600 kW (8.5 MW) wind turbine listed as commissioned on October 5, 2018, the turbine at Thistead, produced 23,031,560 kWh of electricity in 2019, 24,986,470 kWh of electricity in 2020, and 6,161,830 kWh in 2021, having apparently failed in the latter year. It's produced zero energy in all of 2022 thus far. The capacity utilization of this turbine was thus 30.55% in 2019, 33.14% in 2020, 8.17% in 2021 and 0.00% as of this writing in 2022. Over it's lifetime, through March 30, 2022 - the date this version of the Master Register ends - the capacity utilization of this broke down "commissioned" turbine operated, its overall capacity utilization was 20.6%. If it has not been repaired as of July 17, 2022 - if it ever will be - it's capacity utilization will have fallen to 19.0%.

The largest commissioned wind turbine listed is the 14000 kW unit also at Thistead. It was commissioned on December 9, 2021, but still has not produced a single Joule of energy.

Of the 1,230 commissioned wind turbines larger than 2MW, only 471 have operated for more than 10 years. So there is no data to support that they will last more than 20 years other than the two 2300 kW (2.3MW) turbines, which may or may not prove to be outliers, to support a handwaving assertion that agrees with the statement of the antinuke that because of the putative "simple concept" that each generation of windmills improves on the previous - in operational efficiency and durability.


It is unsurprising to me to see for me to see someone working in the fossil fuel dependent wind industry - one showing distain for engineers with a passion for calling bullshit, um, bullshit - in denial about the death toll associated with fossil fuels.

This, in my view, is the result of the fact that the wind industry requires fossil fuels to operate.

Expressing contempt for engineers as being, um, "too rude" strikes me as the inability to understand the frustration of engineers when confronted with denial, whether that denial is in the form of denying the vast death toll produced by the combustion of fossil fuels - on which the useless wind industry depends - or denying the reality of engineering realities to the engineer reporting them.

You know, in my lifetime, I may have poured through thousands of graduate theses at both the Ph.D. level and Master's level. These theses are definitely an underutilized resource. Most of them are highly literate, and certainly more literate than much of what I see here, including from those defending the indefensible, a cranky bunch, who make specious generalized attacks without bothering to offer any reference for their claims.

Many of my engineering and science posts on this website, by contrast, are based on references to the primary scientific literature, as is the OP in this thread.

Hatred for scientists and engineers is becoming increasingly prevalent in this country; a scientific superpower is being decimated. As for individuals here at DU participating, it is happily not all that prevalent, but we can see that examples here are not completely absent.

If any apologists for the so called "renewable energy" scam are here to claim that the trillions of dollars spent to trash wilderness by industrializing it for wind farms has had any effect on the use of fossil fuels or the rate of accumulation of dangerous fossil fuel waste, they can easily be dismissed by pointing to something called "numbers."

Here for instance, not that the apologists for the fossil fuel dependent wind industry give a rat's ass, is my recent analysis of the situation with respect to the concentration of the dangerous fossil fuel waste carbon dioxide, about which, I know, the wind industry couldn't care less, except for trying to pawn off their wilderness destroying junk:

New Weekly CO2 Concentration Record Set at the Mauna Loa Observatory, 430.86 ppm

All of the top 50 highest comparators in week to week comparisons with that of ten years earlier have taken place since 2020. Of the top 50 such data points, the 10 highest have occurred since January 1st 2024. Overall, 15 of the top 50 occurred in 2025, which of course is not done yet. All of the top 50 such readings have taken place in this decade, 29 of them in 2024.

There is a lot of statistical noise in these readings. Week 13 of 2025 for instance, was anomalous given that it was one of the now rare readings to be less than 1.00 ppm higher than Week 13 of 2024, 0.94 ppm higher to be precise. This kind of event is relatively rare in these times, the last time having occurred in 2023 in week 7 of that year. In 1975, the first year available as data at the Mauna Loa observatory, 44% of the readings were lower than 1.00 ppm compared to the previous year.

Because of statistical noise, in my spreadsheet I keep a 52 week running average of the week to week comparators with those of ten years earlier. Five weeks ago, week 12 of 2025, this running average hit 26.00 ppm for the first time. As of week 18, it is now 26.12 ppm/10 years. This is the highest value ever obtained.


It's depressing to note that months later that data point for the 52 week running average for 10 year increases reported in week 18 was 26.12 has reached, as of the week beginning September 7, 2025, week 36, 26.40 ppm/10 years.

As for the question as to whether nuclear plants require maintenance, of course they do. This is certainly not unique to any energy industry, dirty plants in industries like the dangerous natural gas that backs up wind turbines, coal plants, oil refineries, cars, trucks, and trains. Is this surprising somehow? Occasionally nuclear reactors need complete refurbishing, as is the case with the beautiful Bruce and Darlington CANDU reactors in Canada that have been saving lives since the 20th century.

To wit:

... Facing an impending power shortage, the provincial government's Ontario Power Authority in October 2005 agreed with Bruce Power to refurbish its oldest Bruce A reactors. Unit 2 had been laid up in 1995 due to a maintenance accident in which lead contaminated the core. Unit 1 was laid up along with the four Pickering A units at the end of 1997, to allow operational focus on newer plants. Their operational lifetimes were extended by 25 years. Refurbishment of units 1&2 followed units 3&4 being returned to service by 2004 and was completed in 2012.

About eight years after returning to service, unit 3 had a C$300 million upgrade over November 2011 to May 2012 to extend its operating lifetime by ten years, and unit 4 had a similar life-extending upgrade in 2012. Replacement of low-pressure turbines was completed following the reactor refurbishments, at a cost of over $200 million per unit.

UK-based AMEC managed Bruce A work. The whole project was expected to cost C$5.25 billion, with C$2.75 billion for units 1&2, C$1.15 billion for unit 3 and $1.35 billion for unit 4. Early in 2008, with C$2 billion spent, it was announced that the cost of unit 1&2 refurbishment would be about C$3 billion, which late in 2010 was increased to C$4.8 billion. The installation of new calandria tubes was completed in November 2010. In July 2012 unit 1 was authorized to restart, and it was grid-connected in September. Unit 2 started up in March 2012 and came back on line in October, after sorting out a generator problem. They returned to commercial operation by October and November 2012 respectively...

...Following the Ontario 2013 Long-Term Energy Plan, in December 2015 Bruce Power and the Independent Electricity System Operator (IESO)* agreed on long-term sales of 6300 MWe from Bruce, enabling a further major refurbishment programme to extend the operating lifetimes of units 3-8 by up to 35 years. From 2016 Bruce Power will receive C$65.73/MWh for all output, adjusted according to consumer price index. The six reactor refurbishments were expected to cost C$13 billion (in 2014 C$) from 2020 to 2033 and include steam generator and calandria tube replacement. In addition, C$5 billion would be spent on other lifetime extension or ‘asset management’ work from 2016 to 2053, $2.3 billion of these sums before 2020...



...and so on...

Bruce 2, first connected to the grid in 1976, operated in 2024 at 100% capacity utilization, producing 7186 GWh (25.87 Petajoules) of electricity in a single building. There isn't a wind turbine on this planet that operated for a year at 100% capacity utilization for a year, which doesn't stop the wind industry from reporting their crappy stuff in units of peak power, power levels they almost never obtain, and if they do, for periods of minutes, not years.

The refurbishment program of CANDU reactors - in my view some of the most important reactors in the world owing to their potential for thermal breeding - means that reactors that connected to the grid in the 1970's and 1980's will be saving lives well into the 21st century. This will be true irrespective of whether representatives of the useless fossil fuel coddling and dependent wind industry question the scientific fact that air pollution kills people.

The noted climate scientist Jim Hansen made a nice calculation in 2013 about how many lives were saved from air pollution by nuclear energy by the way.

It's here:

Prevented Mortality and Greenhouse Gas Emissions from Historical and Projected Nuclear Power (Pushker A. Kharecha* and James E. Hansen Environ. Sci. Technol., 2013, 47 (9), pp 4889–4895)

The above note is called a "reference," as distinct from handwaving and blank assertions about, let's say wonderful wind turbines in Iowa that last forever. I do hope that providing references to facts, as Dr. Hansen clearly does in his paper in my view, isn't considered "rude," but if it is, well, I can't help it.

As for the claim that "nobody cares about," I would call into question whether the many nice notes I've received in my 22 years at DU advocating for nuclear energy and, occasionally commenting on other scientific issues connected with my career, and, after a time, my practice of denigrating the expensive fossil fuel dependent and useless so called "renewable energy" industry, many people have written me very nice notes about my work here. I certainly didn't ask anyone to do so, and I'm not here seeking either praise or condemnation. I am merely commenting on my views on the important issue of extreme global heating. I have people who appreciate my efforts, and I am assured, in spite of anyone asserting otherwise, that they are not "nobodies."

I'm fully aware that there are airheads all over the world who claim to speak for "everyone." Usually they're uninteresting people with weak minds and in some cases, for example, the orange pedophile in the White House, dangerous people. I would characterize anyone coddling fossil fuels dangerous, but that's just my opinion.

If someone finds stating one's opinions, supported by references and the evocation of facts "rude" that's not my problem. In my view, it's their problem.

In this vein, let me offer another analogy that I often use when I am confronted with complaints about the statement of facts being done in a "rude" way.

A guy is walking down the street near a railroad track, and he sees someone walking on the tracks and a train approaching. He yells out "Hey asshole! Get off the track! A fucking train is coming!!!"

The person walking on the tracks calls back, "Ask me nicely and I'll consider it."

One can only shake one's head in disbelief.

The planet is burning. The trillions of dollars squandered on wind energy in the last 10 years has done nothing, zero, zip, to address this outcome. In fact, the wind industry can't even keep up with the increases in fossil fuel use if one uses units of energy in lieu of effectively lying by pointing to peak power. I certainly feel no compunction to be nice about it, especially to people defending the indefensible fossil fuel dependent wind industry.

My son and his serious girlfriend are both rising nuclear engineers nearing the completion of their Ph.Ds. They are doing what they are doing in hopes of saving what is left to be saved, which is less and less by the hour. They are spectacularly disinterested in malcontents confusing themselves with grammarians, but I'm sure my son and his girlfriend both know that they will encounter in their careers, people who get angry with them, disparage them, and demean them for stating the truth.

It goes with the territory. It's entirely unsurprising to me and it won't be to them.

I trust you're having a swell day out there in those wind industrial parks. Try not to breath in any aerosol plastics spallated from those magical wind turbine blades when the wind is blowing.

Have a wonderful evening as well.

Submariner

(13,111 posts)
3. Using SCUBA, I sampled pore water in the salmon redds of the Hanford Reach of the Columbia River
Fri Sep 12, 2025, 07:39 PM
Friday

I was sampling to see if the hexavalent chromium component of the reactor coolant in the groundwater plumes had reached the nests of incubating king salmon eggs. At 10 μg/L, hex chrome is lethal to fish, and we got a hit of 845 μg/L seeping into the river within these chinook salmon redd gravels,

The DOE Chief science advisor firm, (I cannot ID here) stated no reactor site contaminated groundwater has discharged to the Reach, since they have been monitoring over the past half century or so with groundwater monitoring wells. I found some, which attracted a lot of attention from the Yakima, Nez Perce and Umatilla tribes.when the tribes found out, oh boy, that's another story for another day.

Anyway, the point of this post inspired by your discussion of highly radioactive discharges to a fishery is, even though I know water is a barrier to RADS, I couldn't help but wonder what the levels of strontium 90 and tritium exposures I was swimming in might have been. Those dives were in '95-'96, and I'm still here with no Hanford ill effects, which some poor chaps working landslide can't say to this day.

I'm big into keeping abreast of the sad world of collapsing worldwide fisheries, and those Fukushima impacts to the critters, so thanks for the read.

NNadir

(36,578 posts)
4. It would be interesting if the world were as concerned about the mercury, lead, and, yes, uranium, discharged by coal...
Sat Sep 13, 2025, 03:59 AM
Saturday

...plants as it is about Hanford.

I sometimes attribute the rise of insanity across the world - expressed as a rise in fascism among other things - is actually an outgrowth of heavy metal poisoning, Minamata disease on a global scale.

As for effects, if one looks, one can find that some of the highest life expectancy figures in the entire United States, are found in the Portland, Oregon region, at the mouth of the Columbia River. This may be in spite of Hanford rather than because of it, but is an indication that Hanford, which gets tons of commentary from antinukes, is not a disaster on the scale of extreme global heating.

As I often state, nuclear energy does not need to be risk free to be vastly superior to everything else. It only needs to be vastly superior to everything else, which it is.

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