Human Population Exposures to Coke-Oven Atmospheric Emissions

摘要

There is a substantial body of evidence, both direct and indirect, that the mixture that coke oven emissions represent is carcinogenic and toxic. Current U.S. Environmental Protection Agency (EPA) policy states that there is no zero risk level for carcinogens. To determine what regulatory action should be taken by EPA on atmospheric emissions of coke ovens, three reports have been prepared: (1) a health effects assessment, (2) a population exposure assessment, and (3) a risk assessment document based on the data in the first two assessments. This document is the human population exposure assessment and presents estimates of the number of people in the general population of the United States exposed to atmospheric concentrations of coke ovens emissions. Estimates are provided of population exposures to ambient concentrations of benzo(a)pyrene (BaP) and benzene soluble organics (BSO) material caused by coke oven emissions. Illustrations and tables.