In 2018, ATSDR measured recent blood lead levels (BLL) and urine arsenic levels in 367 Anaconda residents of all ages. They compared the BLL and urine arsenic values found in all participants to the values for the U.S. general population found in the National Health and Nutrition Examination Survey (NHANES).In late fall ATSDR published the results of this study.

ATSDR Exposure Investigation