Lead (as pollutant)
Pb
A toxic heavy metal historically released from leaded gasoline, paint, and industrial smelters. Even tiny amounts cause permanent neurological damage, especially in children. Also a regulated drinking water contaminant.
Related terms
Criteria Pollutants The six common air pollutants regulated under NAAQS: ground-level ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and nitrogen dioxide. Maximum Contaminant Level The highest concentration of a specific contaminant that the EPA legally allows in public drinking water. Set per chemical based on health risk and treatment feasibility.