One in four rice samples from more than 100 different store brands contained dangerous levels of arsenic, a new investigation ...

See the chart summarizing ... with inorganic arsenic. Rice is not the only source of arsenic in food. A 2009-10 study from the EPA estimated that rice contributes 17 percent of dietary exposure ...

Up to 17 percent ... like arsenic, cadmium, cobalt, chromium, copper, nickel and lead, according to the study, published in Science. Toxic heavy metal pollution can come from a range of sources ...