No tritium found in fish one month after Fukushima water release

MicroWave@lemmy.world to World News@lemmy.world – 764 points –
No tritium found in fish one month after Fukushima water release
japantimes.co.jp

No detectable amount of tritium has been found in fish samples taken from waters near the crippled Fukushima No. 1 nuclear plant, where the discharge of treated radioactive water into the sea began a month ago, the government said Monday.

Tritium was not detected in the latest sample of two olive flounders caught Sunday, the Fisheries Agency said on its website. The agency has provided almost daily updates since the start of the water release, in a bid to dispel harmful rumors both domestically and internationally about its environmental impact.

The results of the first collected samples were published Aug. 9, before the discharge of treated water from the complex commenced on Aug. 24. The water had been used to cool melted nuclear fuel at the plant but has undergone a treatment process that removes most radionuclides except tritium.

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ignorance and paranoia about radioactivity go hand in hand.

i know so many otherwise smart people who lose it on this issue. because they just think any radioactivity = destroy planet forever . completely ignorant to how it actually works, and just think every power plant must eventually chernobyl and that one barrel of nuclear waste is enough to destroy 1000s of miles or something equally absurd.

totally sad.

Yet one litre of oil can contaminate over a million litres of water.

I talked about how water released are usually modeled and risk assessments done in another comment abour the pending release a few weeks ago but I can't find it.

While I can't speak for all regulatory bodies, and you could be a shitass and release toxic crap without doing a risk assesmsent, it's very unlikely that this is the case here, particularly because it's TREATED water that's being released. That means they have a treatment system (there's a fucking rabbit hole and half...) which they are using to treat the water to some acceptable criteria/standard. This mean some sort of modeling and risk calculation has been done otherwise they would have just gone 'yolo pump the water into the ocean'.

Tritium isn't toxic, it's mildly radioactive.

Tritated water is toxic just like heavy water. You'd just have to drink a truly ridiculous amount for it to be toxic, to the point that the radiation is a much bigger problem than the toxicity.

Edit: fully tritated water is actually worse, now that I think about it. The radioactive decay will periodically knock off a hydrogen atom, which makes it very reactive. That's not what this is though.

Water is toxic, if you drink an only mildly ridiculous amount and don't get some salt too. I say this having been hospitalized for hyponatremia several years back, due to unwisely drinking plain water instead of anything with salts in it when sick.

Oh for sure, I'm a nurse. Heavy water/tritated water is cytotoxic like a chemotherapy drug however, vs just messing up your osmotic balance. Your proteins conformiational structure from hydrogen bonds can't function correctly with it and you can't replicate your DNA/RNA because of the difference in size of the hydrogen and your cells die. Starts with diarrhea, ends with death. You need like a 20% proportion of it to see those effects though, so like I said, truly ridiculous amounts of tritated water. More than the entirety that they're releasing.

I think most reasonable objections to this were that they would be unable to filter out the actual bioaccumulating radioisotopes from the water and it should've been kept in retention. In the end you either trust they will or not. I trust they will.

I don’t understand why people think concentrating it and keeping large quantities on-site is preferable to heavily diluting and releasing it. A giant vat of radioactive water sounds like another disaster waiting to happen.

Because they don't believe that they've removed the heavy metals that end up in the food web and sitting in the littoral area seabed until it's picked up by lifeforms again. Tritium dilutes, but fission products do not.

Water eats beta- and even alpha particles in a small radius. Ionized water even more so.

The sea is vast. A pond is but a drop to the sea.

It wasn't a decision to be taken lightly, but it was a good gamble.

Nobody's particularly concerned about the actual radiation of the tritium. It's just that it is actively picked up by your body and used like any other water with the same biological half life of water at 7 days. It can cause some problems in that time. It's not really a problem of it getting integrated into anything, since all it'll do is knock itself off of and destroy whatever it gets incorporated into when it decays.

Yeah they talk about nuclear waste and how it needs to be stored for so long, without recognizing that fossil fuels spew their waste, including radiation, directly into the atmosphere, where it is causing apocalyptic global warming. Having it in barrels is actually a big plus.

I remember commenting on a post where China condemned Japan for doing this.

I asked ppl there "is this actually bad or is this kind of par for the course of getting rid of the dangers left behind in Fukushima?" And most of them were like "it's not a common occurrence but it's not inherently dangerous and it's not that big of a deal"

To me it looks like the vast majority of objections to this came from strategic propaganda related to domestic relations of China and/or other nations.

Its also classic anti-nuclear power FUD.

I don't doubt nuclear power works. I just know how humans work. Everything we build we also destroy. Let's not take the planet with us.

This here is also classic anti-nuclear power FUD.

This here is capitolist FUD, but I'm sure in all your great wisdom think humans can be trusted not to fuck up a 5th time.

All you said that was humans mess up everything we do, as if that were something meaningful to say. That is not an argument against nuclear. That's an argument against absolutely everything humans do. It's meaningless. Look:

I don’t doubt solar power works. I just know how humans work. Everything we build we also destroy. Let’s not take the planet with us.

I don’t doubt coal power works. I just know how humans work. Everything we build we also destroy. Let’s not take the planet with us.

I don’t doubt hydro power works. I just know how humans work. Everything we build we also destroy. Let’s not take the planet with us.

I don’t doubt steam power works. I just know how humans work. Everything we build we also destroy. Let’s not take the planet with us.

All of those are exactly as meaningless as what you wrote. So don't go on snarkily about my "great wisdom" like you've made any point at all. Nuclear is safer than oil and coal and gas, which is where the majority of the world's energy comes from right now. Fossil fuels are actively destroying our planet right now, and you're spreading nuclear FUD about things that haven't happened. That's not helpful, and it doesn't match the reality we live in.

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There's nothing more capitalist than pushing coal and oil.

And any rational green energy advocate knows it'll take us decades to build enough solar/wind to fill the fossil fuels gap, but would only take us a couple years to fill that demand with nuclear and also produce fewer emissions. That's simple numbers.

So are you just irrational or a coal-snorting capitalist yourself?

Show me this "fossil fuel gap" when it takes a decade for a nuclear power plant to run at full efficiency.

Best case scenario estimates are a complete replacement by 2050 if energy consumption doesn't change. This requires aggressive investment in renewable production.

However, that's unlikely to happen, as energy consumption is increasing, especially as vehicles across the globe abandon oil-based fuel for electricity from the grid.

The largest hurdle to nuclear power is simply regulatory. We could have nuclear plants built by 2030 with a ~30+ year life that would guarantee us the ability to fully phase out fossil fuels in favor of renewables by 2050 even as demand increases.

???

The USSR and Russia were huge players in nuclear technology and contributed a lot to the field. I actually can't think of an energy source that has a closer connection to communism.

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This is the most ridiculous argument I've ever seen against nuclear energy. "Sure it works, but people are evil!"

I can apply that to everything. Communism? I don't doubt it works, but humans build and also destroy.

Nuclear is way safer than just about any other energy source.

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they did however find an absolute fuck tonne of microplastics.

I live in South Korea and I get really frustrated how so many people(lefties) try to make a big deal out of this to shit on Japan.

Please fucking stop smoking first before you try to talk shit about this. You sound like a complete idiot when you drink and smoke and worry about how filtered water that is probably safer than the seawater now. You're literally paying to suck on carcinogens and radioactive shit.

You're just political about this. Not scientific.

Why do you specify lefties? Is there something unique about South Korean politics that make their left-wing reject science as much as everyone else's right-wing?

Anti-nuclear has been mostly a left thing in the US at least despite the clean energy movement including many of the same people.

Same with the "not in my backyard" mentality. NIMBYs love all these new green technologies, so long as they all happen far away from them.

Korean left-wing has been constantly making conspiracies and propagandas rejecting scientific evidences.

  • THAAD's electromagnetic wave will fry people's brain (they even made a song about it)
  • Importing US beef will kill people
  • US and Israel faked North Korea's attack for political reason

List goes on and on and on...

Why do they do this?

Is their right-wing more reasonable, or even more insane?

Considering how these kind of anti-intellectuallism and nationalism is pretty much left thing in here, yeah

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If their reporting of the quantity of tritium is accurate, India's candu style plants release more incidentally than this will.

Which is what the experts have been saying since the beginning, but the anti-nuclear propagandists explicitly ignore the experts.

Probably because the octopuses used it all for their science experiments. It's a scientific fact that octopuses hoard tritium. Source: Spider-man 2.

Dangit, now how am I gonna get my piscine superpowers/fish shaped tumors?

Lol, I read that as swimming pool

Found the fellow Romand (French-speaking Swiss for the rest of the World).

Well I'm sorry to say that I'm a Schpuntz but at least I know what a "piscine" is :D

Fantastic news! so many people are so afraid of the word "nuclear", and don't understand how large of a volume the ocean is. the lethal dose of Fentanyl is like the size of a grain of rice. Put all of the known legal and illegal volume of fentanyl into the ocean and it would be undetectable.

The ocean is 1.335 × 10^21 litres. That number is stupid big. There are 7.5 × 10^18 grains of sand on Earth. If every person in Japan flushed a litre of the reactor water down their toilet, it would be diluted to nothing in no time at all.

Sample size: 64

Also, are there other things like Caesium-137 that pose a risk?

Cs-137 and other fission and activation products can be largely removed by treatment. H-3 is a bit trickier since it literally is part of the water. Luckily it's a fairly weak beta emitter with a relatively short half life so causes very, very little long term harm.

All that other stuff was filtered out, but the tritium is near impossible to separate, because it is chemically identical to the hydrogen in normal water.

As for caesium, there are still detectable amounts of Cs-137 in most of the word from the thousands of atomic bomb tests. It's half life is just 30 years, but it will still be detectable for a hundred years or so because of the huge amount we released.

I like this but would rather see a multi country coordinated oceanic study. We're all in this together.

People have been far more concerned about the efficacy of the ALPS system at extracting other contaminants than they are about tritium contamination. The ALPS system is unproven and the wastewater they're releasing would be pretty toxic as far as other radioactive isotopes is concerned if the ALPS system isn't doing it's job perfectly.

Two questions: If it's only tritrium why does anyone really care? Why couldn't they just sell it rather than dump it?

I thi k I just realised those questions both have the same answer...

I for one would like to try this "nuclear fish"......preferably crumbed, deep fried and doused in lemon juice. With a serve of fries.

A banana naturally has has around 15 Bq of potassium 40. Assuming a volume of 100 mL, mashed bananas have around 400 Bq/L.

Currently, the treated water has around 250 Bq/L, around a fifth of mashed bananas. In other words, a banana smoothie could easily be more radioactive then the water as it was released.

The banana's potassium 40 has a half life of more then a billion years, so it's not going anywhere, unlike the tritium who's amount will half every 11 years. Also, potassium is concentrated by many plants and animals, while tritium is not.

Cool! So let's ramp up disposing of radioactive material into the ocean because this one fish is ok!

Sample size is critical to get a realistic result of the tritium toxicity. In this case, they sampled only 64 fish! That would not yield a statistically significant result!

Samples of local fish have been collected at two points within a 5-km radius of the discharge outlet, except during rough weather conditions, with the agency announcing its analysis results on an almost daily basis since Aug. 26.

No tritium was detected in 64 fish, which included flounder and six other species, collected since Aug. 8.

I mean... you could have read the article.

I mean, you are correct, it was not two fish. But is 64 fish some sort of good sample size?
Follow up question: does this type of thing accumulate in small fish and then concentrate in larger and larger fish?

I mean, you are correct, it was not two fish. But is 64 fish some sort of good sample size?

Given the results, it is significant.

Follow up question: does this type of thing accumulate in small fish and then concentrate in larger and larger fish?

No, tritium is treated by organisms just like normal H2O, bioaccumulation is no problem.

I love when people tell on themselves for not knowing a thing about statistics.

Yes, it's more than enough.

I don't know the answers to those questions, as I am not a nuclear scientist. But the nuclear scientists seem to think so.

In any case, I think those are good questions. Those are the kind of good questions we get when people read the articles.

What number, in specific, would be a sample size you would accept?

But then they wouldn't be able to bitch!