News tagged with arsenic

Related topics: nasa , water , drinking water

Genetic risk for elevated arsenic toxicity discovered

One of the first large-scale genomic studies conducted in a developing country has discovered genetic variants that elevate the risk for skin lesions in people chronically exposed to arsenic. Genetic changes found near the ...

Feb 23, 2012
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Cooking tips to possibly lessen risk of arsenic in rice

Last month rice lovers got some bitter news. The U.S. Food and Drug Administration and Consumer Reports released studies showing "worrisome" levels of cancer-causing arsenic in many popular rices and rice products.

Oct 08, 2012
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Rice as a source of arsenic exposure

A study just published by a Dartmouth team of scientists in the Proceedings of the National Academy of Sciences (PNAS) advances our understanding of the sources of human exposure to arsenic and focuses atten ...

Dec 05, 2011
popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Genetically engineered rice: Protection from arsenic?

(Medical Xpress)—In an article this week, Consumer Reports is calling on the Food and Drug Administration to set standards for how much arsenic can be allowed in rice after finding the potential toxin in almost every ri ...

Sep 20, 2012
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Arsenic

Arsenic (pronounced /ˈɑrsnɪk/; also /ɑrˈsɛnɪk/ when attributive) is the chemical element that has the symbol As and atomic number 33. Arsenic was first documented by Albertus Magnus in 1250. Its atomic mass is 74.92. Arsenic is a notoriously poisonous metalloid with many allotropic forms, including a yellow (molecular non-metallic) and several black and grey forms (metalloids). Three metalloidal forms of arsenic, each with a different crystal structure, are found free in nature (the minerals arsenic sensu stricto and the much rarer arsenolamprite and pararsenolamprite). However, it is more commonly found as arsenide and in arsenate compounds, several hundred of which are known. Arsenic and its compounds are used as pesticides, herbicides, insecticides and in various alloys.

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