Author(s)

A. Milukaite and A. Mikelinskiene

Abstract

The Influence of Meteorological and Physico-Chemical Factors on Benzo(a)Pyrene Washout from the Atmosphere A contribution to subproject MEPOP A. Milukaite and A Mikelinskiene Institute of Physics,-A. Gostauto 12, Vilnius 2600, Lithuania Introduction According to the high carcinogenity of polycyclic aromatic hydrocarbons (PAHs), the evaluation of their flux to terrestrial and water surfaces has great importance. However, the processes responsible for PAH washout from the atmosphere have not been studied to any extent. Large variabilities in PAH deposition rate have been found; a mean deposition velocity for phenantrene was determined. O.Olcm-s^; for fluoranthene: 0.06 cm s"\ and 0.06 cm s^ for pyrene (Farmer, 1986). Episodic investigations of benzo(a)pyrene in atmospheric air and deposition showed that BP washout rate might vary between 0.015 and 0.03 cm s~' (Milukaite, 1989). A deposition rat

Keywords