Atmospheric deposition of PAHs to an urban site, Paris, France

摘要

Atmospheric fallout were collected at Paris, France, in order to analyse polycyclic aromatic hydrocarbons (PAHs) classified by the Environmental Protection Agency as priority pollutants. Bulk (dry plus wet) atmospheric depositions were monthly analysed from November 1999 to October 2000. Fluoranthene and pyrene were the major components, each averaging about 19/100 of total. Total PAH concentrations in bulk precipitation ranged from 51 to 995 ng 1~(-1) and were higher than those analysed in rivers crossing Paris area. Seasonal variations were described with the highest values measured in winter, and the same trend was observed for PAH concentrations in bulk (gaseous plus particulate) air measured by the Laboratoire d'Hygiene de la Ville de Paris.