Se
Selenium
metalloidSDWA code: 1085
EPA Limit (MCL)
50.000 ppb (0.05 mg/L)
Health Goal (MCLG)
50.000 ppb (0.05 mg/L)
Unit of Measure
mg/L
How concentrations are reported
Health Effects
Hair or fingernail loss; numbness in fingers or toes; circulatory problems at levels above MCL.
How It Gets Into Water
Discharge from petroleum refineries; erosion of natural deposits; discharge from mines
Official EPA Guidance
For authoritative information on Seleniumin drinking water, visit the EPA's official resource page.
View EPA Guidance ↗