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Environ Health Perspect. 1994 Oct;102 Suppl 4:187-92.

Cancer risk of air pollution: epidemiological evidence.

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  • 1Center for Nutrition and Toxicology, Karolinska Institute, Stockholm, Sweden.


Epidemiological studies on the effect of urban air pollution on lung cancer were surveyed. Overall, the studies from many countries point to a smoking-adjusted risk in urban areas over countryside areas that is higher by a factor of up to 1.5. The extent to which urban air pollution contributes to this excess remains unknown. Studies on diesel-exposed occupational groups show that urban air pollution may have a causative role in lung cancer. Model calculations on unit risk factors of known human carcinogens were carried out to rank carcinogens according to their current ambient air concentrations.

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