Should people be tested for urine or blood arsenic levels?

  • We do not recommend testing for urine or blood arsenic levels at this time. Several types of tests are available; however, results can be difficult to interpret because there are no widely accepted standard values to distinguish "normal" from "elevated" test results. Test results can also be misleading if seafood was consumed during the week prior ro arsenic testing, as the forms of arsenic derived from seafood are not toxic and complicate the interpretation of internal arsenic levels.
  • Instead, you are encouraged to take action to ensure that you are using a safe water source for drinking and cooking. Once arsenic in the source is reduced, blood levels of arsenic will also rapidly decline.