Exposure and Risk from Ambient Particle-bound Pollution in an Airshed Dominatedby Residential Wood Combustion and Mobile Sources

摘要

A major field study was conducted in Boise, ID, during the heating season of 1986-87 as part of the Integrated Air Cancer Project (IACP). Filter samples were systematically collected in residences and in the ambient air across the community to characterize the particle-bound pollutants. The extractable organic matter (EOM) from the filter samples were apportioned to its source of origin, either residential wood combustion (RWC) or mobile sources (MS). Two composite samples, with apportioned contributions from RWC and MS, were prepared from the Boise ambient samples and were tested for tumor initiation potency. A comparative potency lung cancer risk estimate has been made based on the two ambient composite samples from this airshed.