Survey of Ambient Concentrations of Selected Polycyclic Aromatic Hydrocarbons (PAH) at Various Locations in California

摘要

Ambient air samples were collected during 1986-87 at seven sites throughout California impacted by different combustion emissions, covering vehicle emissions, agricultural burning, industrial emissions, wintertime residential wood burning, and oil production emissions. At these sites, 118 12-hr daytime and nighttime ambient air samples were collected and subjected to chemical analysis for 32 polycyclic aromatic hydrocarbons (PAH), nine nitroarenes and one sulfur heterocycle, and to mutagenicity testing. Large differences were observed among the sites for PAH and nitroarene concentrations and mutagenicity. Among the PAH and PAH-derivatives monitored, 2-nitropyrene correlated best with ambient mutagenicity.