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Category → Mycology

Poisons and Policy: Arsenic and Aflatoxins

The other problem. Credit: Nakhonsawan Field Crop Research Center, Thailand.

In the past 24 hours, do you recall hearing anything about arsenic in rice? If you’re in the United States, the answer is very likely, “yes!”

A great many pixels were spilled yesterday when Consumer Reports

and the US Food and Drug Administration released — almost simultaneously — analytical data on inorganic arsenic concentrations in 200 samples of commercial rice products, particularly those grown in the southern US.

You can’t do any better in understanding this story than reading, “Arsenic and Rice. Yes, again,” on Deborah Blum’s Elemental blog at Wired Science Blogs

. Professor Blum has been discussing arsenic in the diet for a few years, an interest she developed while composing her superb book, The Poisoner’s Handbook: Murder and the Birth of Forensic Science in Jazz Age New York.

Deborah’s post puts in perspective the risks of inorganic (and organic) arsenic concentrations in food products such as rice relative to drinking water. Arsenic occurs in nature but exists in higher concentrations in water from areas where arsenical pesticides have been used in cotton farming or poultry deworming (the latter discussed in 2006 at NYTimes). While she closes in being critical of the FDA for lack of clear consumer guidance, let it suffice to say that no character in Blum’s book was killed by poisoning with rice from Louisiana.

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