Asphalt--a continuing challenge.
Assessing the health risks of complex mixtures of polynuclear aromatic hydrocarbons such as diesel fumes and asphalt or bitumen continues to be a major challenge for occupational and environmental health scientists. The special Asphalt issue of the American Journal of Industrial Medicine (Cancer Mortality Among European Asphalt Workers (Am.J.Ind.Med. Volume 43, Number 1, 2003) presented the results of a major multi-country epidemiological study of a group of workers exposed to one common commercial PAH mixture, asphalt or bitumen.
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