Author(s)

H Tang, L Lin & B Brassard

Abstract

A new Maxxam all-weather passive air sampling system (PASS) is introduced in this paper. The PASS can be used to quantitatively and accurately monitor S02, N02, 03 and H2S in air in all weather conditions with flexible exposure times from several hours to several months. The air pollution detection limits of PASS are very low. It can be from sub ppb to ppt levels. The PASS for SO2 has been used in studying an acid dry deposition model. Details of the study are discussed in this paper.

Keywords