Heavy metals

Airborne, impact, criteria air contaminants, heavy metals, toxics, reaction, sources.

Services and information

Main emission sources

Sources, industrial processes, fossil-fuel combustion, transportation, waste incineration, products.

Linkages with other issues

Air issues, smog, particulate matter, emissions, acid rain, environment.

Heavy metals history

Human activities, lead emissions, transboundary disputes, regulations, international agreements.

Heavy metals overview

Sources, fine particles, persistent organic pollutants, hazardous air pollutants, micronutrients.

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