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Metal toxicity or metal poisoning is the toxic effect of certain metals in certain forms and doses on life. Some metals are toxic when they form poisonous soluble compounds. Certain metals have no biological role, i.e. are not essential minerals, or are toxic when in a certain form. [1]
In Barrie Peake's paper, Impact of Pharmaceuticals on the Environment, ecotoxicity is defined based on the level of exposure to hazardous substances. Peake identifies two categories: acute and chronic ecotoxicity (Peake, 2016). Acute ecotoxicity refers to harmful effects that occur from exposure to a hazardous substance for up to 15 days.
The toxic effects of arsenic, mercury and lead were known to the ancients but methodical studies of the overall toxicity of heavy metals appear to date from only 1868. In that year, Wanklyn and Chapman speculated on the adverse effects of the heavy metals "arsenic, lead, copper, zinc, iron and manganese " in drinking water .
Toxic to both animals and plants. [22] bromine: 35: 5: Essential to membrane architecture and tissue development in animals. [23] May have antibiotic effects in some compounds when it substitutes for chlorine. [24] Bromine compounds are very common in and presumably essential to a variety of marine organisms, including bacteria, fungi, seaweeds ...
Tin has no known natural biological role in living organisms. It is not easily absorbed by animals including humans. The low toxicity is relevant to the widespread use of tin in dinnerware and canned food. [1] Nausea, vomiting and diarrhea have been reported after ingesting canned food containing 200 mg/kg of tin. [2]
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Heavy metals are often assumed to be highly toxic or damaging to the environment. [53] Some are, while certain others are toxic only if taken in excess or encountered in certain forms. Inhalation of certain metals, either as fine dust or most commonly as fumes, can also result in a condition called metal fume fever .
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