Immunological Abnormalities in Workers Exposed to Pollutants at an Egyptian Copper Company
2003
AbstractIn the present work we studied: (a) biochemical changes; (b) serum immunoglobulins (IGs); and (c) mitogenecity of peripheral blood lymphocytes (PBL) in workers directly exposed to high concentrations of pollutants in several sectors of a major copper company in Alexandria. These sectors included the aluminum utensils refining of copper semicontinuous aluminum casting, brass foundries, and steel furnaces. Toxicants in these sectors included aluminum, hexachloroethan, silica, cadmium, copper, mercury, lead, abestos, nickels, zinc, silver, carbon iron, and sulfate present in high concentrations in the sectors where workers are directly exposed. Administrative personnel (indirectly exposed) were included as positive controls; negative controls were people living in areas of Alexandria where the concentrations of these toxicants are extremely low. All personnel of the aluminum utensils area showed reduction in serum levels of IgG, IgA, and IgM assayed by enzyme‐linked immunosorbent assay (ELISA) while ...
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