Health surveillance of employees on a lead mine, 1979-1989

Health surveillance of employees at a lead mine in the northern Cape, employing about 1 400 people, is specifically aimed at early detection of excessive lead absorption, which is the main chemical hazard. Over a period of 9 years the blood lead level distribution showed very few values (2,5%) that exceeded 60 μg/100 ml.Health surveillance of employees at a lead mine in the northern Cape, employing about 1 400 people, is specifically aimed at early detection of excessive lead absorption, which is the main chemical hazard. Over a period of 9 years the blood lead level distribution showed very few values (2,5%) that exceeded 60 μg/100 ml