Atmospheric deposition of PAHs, PCBs, and organochlorine pesticides to Corpus Christi Bay, Texas

摘要

Air and rain samples were collected at an atmospheric sampling site on Corpus Christi Bay from 20 August 1998 to 16 September 1999. Water samples were periodically collected from Corpus Christi Bay concurrently with air samples for calculation of the air-water gas exchange. Wet deposition, dry deposition and air-water gas exchange rates of polycyclic aromatic hydrocarbons (PAHs) to Corpus Christi Bay were estimated as 182, 68, and -38.4 μg m~(-2) yr~(-1) (negative values indicate loss from surface water to the air), and those of polychlorinated biphenyls (PCBs) were estimated as 3.93, 0.98, and -67.2 μg m~(-2) yr~(-1).