ENVIRONMENTAL-IMPACT OF MERCURY AND OTHER HEAVY-METALS

The environmental impact of heavy metals is reviewed. One significant source of emissions of heavy metals to air is waste incineration. Cons umer batteries contributes significantly to this problem, as well as t o heavy metal leakage to groundwater from landfill deposits. The situa tion in Sweden is used as an example to describe how the deposition fr om the atmosphere still is increasing the load of heavy metals, like m ercury, cadmium and lead, in top soils and aquatic sediments. Critical factors and effect levels for Hg, Cd, Pb, Cu, Zn and As are discussed . Specific questions like mercury contents in present battery waste an d heavy metal contents in new and future secondary batteries are addre ssed.