Area-wide distribution of lead, copper and cadmium in air particulates from chicago and northwest Indiana.
D000397:Air Pollution / Q000032:analysis*; D002104:Cadmium / Q000032:analysis*; D002641:Chicago; D003300:Copper / Q000032:analysis*; D007196:Indiana; D007854:Lead / Q000032:analysis*
D002104:Cadmium; D007854:Lead; D003300:Copper