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I think it's simply a case of it being toxic to the point where it only takes a very small amount to gently caress you up.
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Apr 14, 2015 14:28
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Kazy posted:Question: How does a tiny drop of that stuff turn into toxic amounts? Is it just super concentrated or does it alter your body chemistry somehow to make more? Math time! "A couple drops" = half a milliliter, give or take. Given a density (according to Wiki) of 2.96 grams per milliliter, that's about 1.5 grams. About 87% of that is pure mercury, so 1.3 grams, or 1,300,000 micrograms. Toxic dose (according to the article) is about 50 micrograms per liter (in blood), which is 250 micrograms total (about 5 liters of blood in an average adult), 0.02% of the amount she absorbed. That amount wouldn't have been absorbed had it been normal mercury, but dimethylmercury's nasty. Mikl fucked around with this message at 15:21 on Apr 14, 2015 |
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Apr 14, 2015 15:18
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Kazy posted:Question: How does a tiny drop of that stuff turn into toxic amounts? Is it just super concentrated or does it alter your body chemistry somehow to make more? It's the bodily equivalent of the same way that a 7 gram lead bullet is dangerous. It's not the mercury, it's how quickly it makes it through the protective layer of your body and into places it shouldn't be, and then it sits there wrecking poo poo because your body can't easily remove it.
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Apr 14, 2015 15:24
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Heres a story about some dumb rear end kids who found 40 lbs of mercury in an abandoned neon factory and did stupid poo poo with it for a long time then the EPA had to decontaminate the entire town. http://content.time.com/time/magazine/article/0,9171,138442,00.html quote:They and their friends dipped their hands and arms into it. They poured it on their bedroom floors to see it wobble and flow. They showed it off at school and handed it out in jars and vials. One youth dipped a cigarette in it and smoked it.
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Apr 14, 2015 15:27
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Olewithmilk posted:What was the crazy mercury compound that killed the academic lady after she spilled a tiny drop onto her gloves that turned out to be not all that resistant to various compounds? Kazy posted:Question: How does a tiny drop of that stuff turn into toxic amounts? Is it just super concentrated or does it alter your body chemistry somehow to make more? You should look up the permeability / resistances of nitrile gloves. They're shockingly low for some common chemicals (solvents). E: [url]https://www.uic.edu/depts/envh/HSS/Documents/Resistance%20Guide%20for%20Kimberly%20Clark%20Nitrile%20Gloves.pdf Baller Witness Bro fucked around with this message at 15:38 on Apr 14, 2015 |
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Apr 14, 2015 15:36
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Dillbag posted:Heres a story about some dumb rear end kids who found 40 lbs of mercury in an abandoned neon factory and did stupid poo poo with it for a long time then the EPA had to decontaminate the entire town. quote:One youth dipped a cigarette in it and smoked it. And then he and his buddies began to fall very ill.
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Apr 14, 2015 15:38
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Mikl posted:Math time! additionally from Wikipedia, dimethylmercury is great at passing the blood-brain barrier. Once mercury is in the brain things get bad: quote:Mercury is highly reactive with selenium, an essential dietary element required by about 25 genetically distinct enzyme types (selenoenzymes).[20] Among their numerous functions, selenoenzymes prevent and reverse oxidative damage in the brain and endocrine organs. The molecular mechanism of mercury toxicity involves its unique ability to irreversibly inhibit activities of selenoenzymes, such as thioredoxin reductase (IC50 = 9 nM).[21] Although it has many additional functions, thioredoxin reductase restores vitamins C and E, as well as a number of other important antioxidant molecules, back into their reduced forms, enabling them to counteract oxidative damage within body cells.[22] Since the rate of oxygen consumption is particularly high in brain tissues, production of reactive oxygen species (ROS) is accentuated in these vital cells, making them particularly vulnerable to oxidative damage and especially dependent upon the antioxidant protection provided by selenoenzymes. High mercury exposures deplete the amount of cellular selenium available for the biosynthesis of thioredoxin reductase and other selenoenzymes that prevent and reverse oxidative damage,[23] which, if the depletion is severe and long lasting, results in brain cell dysfunctions that can ultimately cause death.
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Apr 14, 2015 16:40
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Some compounds are simply more toxic than others, too. Dimethylmercury loves to react with important bits of your body. Mercury does so too, but not quite as easily. Methylated metals tend to be more toxic than the metals themselves.
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Apr 14, 2015 18:42
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Goiania Accidentquote:The Goi穗ia accident was a radioactive contamination accident that occurred on September 13, 1987, at Goi穗ia, in the Brazilian state of Goi疽, after an old radiotherapy source was stolen from an abandoned hospital site in the city. It was subsequently handled by many people, resulting in four deaths. About 112,000 people were examined for radioactive contamination and 249 were found to have significant levels of radioactive material in or on their bodies.
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Apr 15, 2015 01:54
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The main reason they tend to  flip out now when there is a mercury spill is that they actually know now that the vapor DOES cause definite damage even at low levels. Spill some liquid mercury into the carpet at school, and end up with several years of schoolkids getting mild neurologic poisoning from the vapors as it slowly evaporates.
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Apr 15, 2015 03:59
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How much mercury is spilled during Japanese florencent light fighting? Ill just post the google imgs link, nms for blood. https://www.google.com/search?q=jap..._AUoAg&dpr=1.25
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Apr 15, 2015 04:08
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Preoptopus posted:How much mercury is spilled during Japanese florencent light fighting? I've seen a lot of American indie and backyard wrestling do that as well. They're "spot monkeys", who can't really do anything except big spots (scripted stunts) because they suck at stage combat and making the match look like a real fight. So they make up for it by grabbing a bunch of fluorescent lights and thumbtacks and flaming torches and start legitimately injuring each other to seem more hardcore. I saw a match once where a guy got lifted up and pile driver'd through a pair of tables that had light tubes on top....from scaffolding about 20-25 feet up. I'm surprised they're not actually dead. I'm even more surprised that the audience goes home safely, since you can see all the dust from the shattered light tubes floating at them. Sure as hell wouldn't wear contacts ringside.
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Apr 15, 2015 04:23
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CZW and IWA are some crazy absurd dumb motherfucking wrestlers Necrobutcher owns though
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Apr 15, 2015 04:39
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Since I know at least one person probably wants to see that insanity, here's the match I mentioned. https://www.youtube.com/watch?v=6djGyZv8GmA Skip to about 12:30 to see how the aforementioned dive begins. This whole match is OSHA Wrestling.
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Apr 15, 2015 05:53
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Wasn't there a wrestler whose big thing was that he cut himself all the time and then WHOOPS TURNS OUT HE HAD HIV?
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Apr 15, 2015 05:55
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Improbable Lobster posted:Wasn't there a wrestler whose big thing was that he cut himself all the time and then WHOOPS TURNS OUT HE HAD HIV? Abdullah the Butcher was accused of it. He's bladed himself so many times that he can hold poker chips or coins in his scars. He also had the issue of cutting other people without their permission. At the moment blading is totally banned in the WWE, which has been trying to push more for family-friendly shows and eliminate a lot of the blood and severe injuries.
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Apr 15, 2015 06:04
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Abdullah had hepatitis, not AIDS, but still...
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Apr 15, 2015 06:16
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HIV and hepatitis accusations and fears aren't uncommon in circles where blood gets spilled. It's part of the reason why intentionally cutting yourself got banned by the WWE (along with the general sanitization efforts), but as you can see in that video the hardcore indie promotions have no problem with wrestlers literally smearing blood everywhere and risking infection from a new source every ten seconds.
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Apr 15, 2015 06:23
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The best part of the Goiana incident, next to the baby covering itself with and eating the glowing radioactive isotope, is that the thieves were able to access the building because the security guard skipped work to go see Herbie Goes Bananas.
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Apr 15, 2015 07:12
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How about a more schadenfreude-y version? Thieves hijack truck containing radioactive material, end up hospitalized. http://www.usatoday.com/story/news/world/2013/12/06/mexico-radioactive-arrests/3897233/
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Apr 15, 2015 10:22
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Leperflesh posted:Nah it had a lot of stuff like that, but a bit of googling suggests those old kits had stuff like ammonium nitrate, potassium permanganate, etc. It definitely had a little glass bottle with a wick to be used as an alcohol-burning bunsen burner, with a test-tube holder to position over it - which was apparently outlawed in like 1978? When I was ten or so, I was really into chemistry experiments, mostly growing crystals and stuff like that. I made my own alcohol burner from a small metal candy tin. Punch a hole in the lid with a large nail, fill the tin with cotton wool, pull some out of the punched hole to make a wick. Add alcohol and there's your budget burner. 
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Apr 15, 2015 10:38
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Dillbag posted:The best part of the Goiana incident, next to the baby covering itself with and eating the glowing radioactive isotope, is that the thieves were able to access the building because the security guard skipped work to go see Herbie Goes Bananas. About this girl: quote:Initially, when an international team arrived to treat her, she was confined to an isolated room in the hospital because the hospital staff were afraid to go near her. [...] Holy poo poo.
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Apr 15, 2015 10:55
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Does it say how long she would remain radioactive? I can see issues with people eventually digging up a cemetery, finding, and opening a weird coffin but if it is a short half-life it might be safe in a reasonable amount of time. Unless perhaps some looters who don't know better come by and it starts all over.
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Apr 15, 2015 19:20
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CampingCarl posted:Does it say how long she would remain radioactive? I can see issues with people eventually digging up a cemetery, finding, and opening a weird coffin but if it is a short half-life it might be safe in a reasonable amount of time. Unless perhaps some looters who don't know better come by and it starts all over. The half-life of 137-Cs is about 30 years, and usual radioactive waste handling procedures specify 10 half-lives before it's considered no longer radioactive. So, in 300 years her remains will probably be no more or less radioactive than the surrounding soil. \/\/\/ She was buried in a lead-lined, fibreglass coffin so it's pretty unlikely that any of the 137-Cs or any of the ionizing radiation it's releasing will get into the soil. ExecuDork fucked around with this message at 20:05 on Apr 15, 2015 |
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Apr 15, 2015 19:58
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ExecuDork posted:The half-life of 137-Cs is about 30 years, and usual radioactive waste handling procedures specify 10 half-lives before it's considered no longer radioactive. So, in 300 years her remains will probably be no more or less radioactive than the surrounding soil. Especially if her corpse is irradiating the surrounding soil.
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Apr 15, 2015 19:59
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Subjunctive posted:Especially if her corpse is irradiating the surrounding soil. It doesn't radiate neutrons, so the surrounding material doesn't become radioactive itself. In the worst case a small amount of soil would be sterile, if it could even penetrate the coffin. -e- Really, radioactive stuff doesn't automatically make other things radioactive. To become radioactive, atoms have to become an instable isotope, which requires extra neutrons, which most materials don't radiate. Lurking Haro fucked around with this message at 20:08 on Apr 15, 2015 |
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Apr 15, 2015 20:05
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Subjunctive posted:Especially if her corpse is irradiating the surrounding soil. What could theoretically happen is that the coffin isn't water tight. In that case, water starts leaking through it, dissolving the radioactive cesium it touches, and taking it back out into the ground water. This would cause a slow release of radioactive matter that could end up in drinking water. I'm guessing they thought of that possibility and sealed that thing properly, though.
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Apr 15, 2015 23:36
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That's probably what they said about the radiotherapy source in the first place.
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Apr 15, 2015 23:54
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Apr 16, 2015 01:54
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You're supposed to feed people you don't like into the wood chipper feet first, and this guy is trying to do it to himself on purpose. Yeah ok.
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Apr 16, 2015 01:59
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Carbon dioxide posted:This would have a grand effect of nothing at all on the soil. You seem to misunderstand the basic properties of radioactivity. A better one now, thank you!
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Apr 16, 2015 01:59
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but he's holding the killbar explicitly designed for that purpose 
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Apr 16, 2015 03:57
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SolidElectronics posted:That's probably what they said about the radiotherapy source in the first place. It wasn't sealed against scavengers with tools looking for scrap. Luckily there isn't really a market for scrap decaying kid corpses (I hope). The coffin might get scavenged, and the body tossed in a pile/pit if society decays to the point where looting graves for scrap makes sense.
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Apr 16, 2015 04:24
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jetz0r posted:Luckily there isn't really a market for scrap decaying kid corpses (I hope). Not unless we're living in an RPG.
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Apr 16, 2015 04:37
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theflyingexecutive posted:but he's holding the killbar explicitly designed for that purpose BUT WHAT IF also that's the name of my penis The KillBar
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Apr 16, 2015 04:57
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Shions of Qud
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http://www.kirotv.com/news/news/screaming-heard-cargo-area-plane-seatac-aircraft-d/nkshk/ Plane had to return to airport and make an emergency landing after screaming was heard from the (luckily, pressurized part) of the cargo hold shortly after take-off. Turned out an airport worker decided to take a nap in the hold around the time his shift ended. His colleagues assumed he went home, they tried calling his cellphone and called his name in the cargo hold, but there was no response so they shrugged and closed the hatch. The guy woke up when the plane started moving. I can't even fathom what would give someone the idea that taking a nap in an airplane cargo hold is a good idea, ever.
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Apr 16, 2015 12:07
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theflyingexecutive posted:but he's holding the killbar explicitly designed for that purpose That's like saying "oh, it's ok to pull the trigger when I put this pistol to my temple, the safety is on." It's a safety feature designed to save your rear end if you gently caress up, not to be used as the only thing keeping you from being mulched because you INTENTIONALLY STUCK YOUR GODAMNED LEG INTO THE WOOD CHIPPER.
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Apr 16, 2015 12:32
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theflyingexecutive posted:but he's holding the killbar explicitly designed for that purpose
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Apr 16, 2015 13:44
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jetz0r posted:It wasn't sealed against scavengers with tools looking for scrap. This is why there are now two radiation hazard symbols. This is the one we're all familiar with:  This one you are certain never to have seen before in use:  The intention of the first is to warn you that there is a radiation hazard nearby and that you should be familiar with and take all necessary precautions. If you can see the first sign, you are under no immediate danger. The second sign indicates 'you have hosed up. If you can see this you are right now being exposed to hazardous levels radiation  '. This signage is new as of 2007, and was made after extensive research as an answer to the goiania incident. The problem with the first sign is that few people actually know what it means, while in the second the skull and bones and the gtfo are much easier to understand. The red sign would be behind the safety shielding such that anyone breaking into it for scrap would see this sign physically close to the source of immediate danger. You can read a little more about it here: https://www.iaea.org/newscenter/news/new-symbol-launched-warn-public-about-radiation-dangers-0
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Apr 16, 2015 14:45
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Huh, I've never seen the 2nd sign before. ...oh wait, that's a good thing, isn't it?
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Apr 16, 2015 15:03
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