Tl
Thallium
heavy metalSDWA code: 1105
EPA Limit (MCL)
2.000 ppb (0.002 mg/L)
Health Goal (MCLG)
500 ppt (0.0005 mg/L)
Unit of Measure
mg/L
How concentrations are reported
Health Effects
Hair loss; changes in blood; kidney, intestine, or liver problems.
How It Gets Into Water
Leaching from ore-processing sites; discharge from electronics, glass, and drug factories
Official EPA Guidance
For authoritative information on Thalliumin drinking water, visit the EPA's official resource page.
View EPA Guidance ↗