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Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...
This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002).The list can be found as an appendix to 40 CFR 355. [1]
Toxins can be further differentiated into subtypes on the bases of smaller variations. [13] However, all types of botulinum toxin are rapidly destroyed by heating to 100 °C for 15 minutes (900 seconds). 80 °C for 30 minutes also destroys BoNT. [14] [15] Most strains produce one type of BoNT, but strains producing multiple toxins have been ...
Aflatoxin B 1, the most toxic, is a potent carcinogen and has been directly correlated to adverse health effects, such as liver cancer, in many animal species. [11] Aflatoxins are largely associated with commodities produced in the tropics and subtropics, such as cotton, peanuts, spices, pistachios, and maize.
The most prominent natural toxin groups that exist in aquatic environments are mycotoxins, algal toxins, bacterial toxins, and plant toxins (8). These marine biotoxins are dangerous to human health and have been widely studied due to their high potential to bioaccumulate in edible parts of seafood. [16]
Lonomia obliqua has a toxic venom which causes disseminated intravascular coagulation and a consumptive coagulopathy, which can lead to a hemorrhagic syndrome. The toxins are stored in sacs at the base of each spine. As the spines penetrate the victim, venom flows through the hollow bristles and into the puncture wound. [7]
Amatoxins, the class of toxins found in these mushrooms, are thermostable: they resist changes due to heat, so their toxic effects are not reduced by cooking. Amanita phalloides is the most poisonous of all known mushrooms. [6] [7] [8] It is estimated that as little as half a mushroom contains enough toxin to kill an adult human. [9]
As this contradicts most formal definitions of the term "toxin", it is important to confirm what the researcher means when encountering the term outside of microbiological contexts. Environmental toxins from food chains that may be dangerous to human health include: Paralytic shellfish poisoning (PSP) [27] [28] [29]