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Organic arsenic is less harmful than inorganic arsenic. Seafood is a common source of the less toxic organic arsenic in the form of arsenobetaine. [22] Because of its high toxicity, arsenic is seldom used in the Western world, although in Asia it is still a popular pesticide.
Bioremediation of ground water contaminated with arsenic aims to convert arsenite, the toxic form of arsenic to humans, to arsenate. Arsenate (+5 oxidation state) is the dominant form of arsenic in surface water, while arsenite (+3 oxidation state) is the dominant form in hypoxic to anoxic environments.
This is classified as a bioactivation step, as although arsenic (III) is more toxic, it is more readily methylated. [27] There are two routes by which inorganic arsenic compounds are methylated. [28] The first route uses Cyt19 arsenic methyltransferase to methylate arsenic (III) to a mono-methylated arsenic (V) compound. [26]
Inorganic arsenic is more toxic to humans than the naturally occurring form of the mineral arsenic, and the health effects from exposure are more severe, according to the U.S. Food and Drug ...
The arsenic (As) cycle is the biogeochemical cycle of natural and anthropogenic exchanges of arsenic terms through the atmosphere, lithosphere, pedosphere, hydrosphere, and biosphere. Although arsenic is naturally abundant in the Earth's crust, long-term exposure and high concentrations of arsenic can be detrimental to human health. [1] [2]
According to the Agency for Toxic Substances and Disease Registry, the estimated average dietary intake of arsenic by adults in the United States is 40 micrograms per day, with meat, fish, and ...
Values about 1000 μg are not unusual following consumption of fish or mushrooms. But there is little danger in eating fish because this arsenic compound is nearly non-toxic. [12] Arsenobetaine was first identified in the Western rock lobster [13] [14] Saccharides bound to arsenic, collectively known as arsenosugars, are found especially in ...
As U.S. legislators look for ways to reduce the nation's health-care costs, they may soon tackle America's salt problem. Cutting Americans' salt intake by even 10% would probably prevent hundreds ...