How much arsenic is too much?
When does arsenic in drinking water become a health concern? Arsenic is measured in parts per billion (ppb). The federal government has established the safe drinking water standard (also called maximum contaminant level) for arsenic as 10 ppb*.
When does arsenic in drinking water become a health concern? Arsenic is measured in parts per billion (ppb). The federal government has established the safe drinking water standard (also called maximum contaminant level) for arsenic as 10 ppb*.