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Arsenic is a poison but in small doses builds resistance against the common cold, asthma, coughs, scabies, and a variety of other diseases. |
Arsenic |
Arsenic is a ubiquitous element in nature and is widely distributed in air, water, soils, rocks, plants, and animals in variable concentrations. It is the 20th most abundant element in Earth's crust and the 12th most abundant element in the biosphere. |
Role in Human Helath |
Additional Information |
Much remains to be learned about arsenic. The interindividual variation in susceptibility to arsenic toxicity is still a puzzle. The precise mechanism of action of arsenic in human systems is yet to be fully understood. The silent presence of arsenic in the environment, particularly in drinking water and the food chain, is a potential threat to humankind and deserves greater attention from the scientific community around the world. |
Source: Chemical & Engineering News Copyright © 2003 American Chemical Society |
Sources/Negative of |