Arsenic in Chicken Meat

Researchers purchased 142 chicken breasts from 82 stores in 10 cities across the U.S., representing 60 unique chicken brands. Sixty-nine chicken breasts came from companies deemed “conventional,” 36 were conventional but antibiotic-free, and 37 were USDA Organic. Half of each chicken breast was tested after cooking, the other half left raw for testing. A team at the University of Graz in Austria analyzed each sample for total arsenic concentrations, and more specifically for concentrations of roxarsone, inorganic arsenic, and methylated arsenic species.

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