Arsenic collects in top soil, contaminating rice, reducing yield. — Environmental Health News

Posted by Trish Riley, July 14, 2010

Arsenic in irrigation water or soil congregates in the top layers of soil where rice roots grow, allowing the plants to incorporate the toxic metal into the grain.

People are exposed to arsenic primarily through diet and drinking water… rising arsenic contamination in water and food supplies threatens food security, food safety and quality, and long-term agricultural sustainability of rice crops.

In the United States, drinking water levels of arsenic are regulated at 10 parts per billion (ppb)…however, arsenic concentrations in public water systems can exceed 200 ppb in some states, including California and Alaska.

via Arsenic collects in top soil, contaminating rice, reducing yield. — Environmental Health News.

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