http://news.consumerreports.org/safety/ ... -rice.htmlThe recent Consumer Reports investigation found that rice is among the foods that tend to have elevated levels of arsenic for two primary reasons. Rice is among the plants that are unusually efficient at taking up arsenic from the soil and incorporating it in the grains people eat. Moreover, much of the rice produced in the U.S. is grown in Arkansas, Louisiana, Mississippi, Missouri, and Texas on land formerly used to grow cotton, where arsenical pesticides were used for decades, just as they were in orchards and vineyards.
When the rice initially planted in some of those former cotton fields produced little grain due to that pesticide residue, farmers solved that problem by breeding a type of rice specifically designed to produce high yields on arsenic-contaminated soil, according to Andrew Meharg, a professor of biogeochemistry at the University of Aberdeen in Scotland. His research has shown that U.S. rice has among the highest average levels in the world of inorganic arsenic, which is known to cause skin, lung and bladder cancer in humans. Rice in the U.S. has also been shown to contain substantial amounts of another organic form of arsenic demonstrated to be carcinogenic in rats.
Rice drinks given to young children who are lactose intolerant may also pose risks. In fact, after a 2008 study conducted by Meharg found levels of inorganic arsenic exceeding 10 ppb in a majority of samples of rice milk tested in the United Kingdom, the UK’s Food Standards Agency advised that children younger than four and half years old should not have rice drinks as a replacement for cows’ milk, breast milk or infant formula.
I wonder if this means buying Asian rice could be better? Since that soil was probably always used for rice? Then again, who knows what it's irrigated with. I wonder if even organic rice can be grown on soil that was once filled with arsenic-laden pesticides?