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Arsenic now in wheat, potato — and more than that in drinking water — in rural Bihar -Mohd Imran Khan

-Down to Earth

Groundwater contaminated with arsenic is extensively used for irrigation and finds its way into the food chain 

Arsenic contamination in groundwater has been a growing concern in several parts of the country. Now, the chemical has found its way into the food chain — mainly rice, wheat and potato — a recent study has found.

Ashok Kr Ghosh, one of the leading scientists of the team that led the research and chairman of Bihar Pollution Control Board, said:

“Our study has confirmed the presence of arsenic in food chain in Bihar through irrigation water. Three common eatables — rice, wheat and potato — have elevated levels of arsenic that increases the disease burden in exposed persons.”

Arsenic contamination in drinking water is not new in Bihar; the unique observation, however, was that in several samples, arsenic content in food items was higher than that in drinking water. The concentration was higher in cooked rice compared to raw rice.

The research study was a part of the project Nature and nurture in arsenic induced toxicity of Bihar jointly funded by the British Council in the United Kingdom and Department of Science and Technology in India. It was recently published in the journal Science of the Total Environment.

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