出版社：Korean Society of Environmental Health and Toxicology
摘要：This paper was studied to investigate the equilibrium state between organochlorine pesticides (OCPs) con- centration of air and soil,and to know whether soil is a secondary pollution source of OCPs in air or not. The OCPs concentration of air (Cair) and soil (Csoi) is not related to molecular weight,vapor pressure (PL) and octa- nol- air partition coefficient (Ka). The slope of the regression line between soil-air partition coefficient (Ks) and scavenging coefficient (Csoi:/Cair) was 0.2952,which the OCPs concentration between air and soil did not reach- ed to the equlibrium state. The soil/air fugacity quotients (rm)/ of p,p'-DDT/DDD/DDE and β-HCH (0.30 ~0.67),which is smaller than I,means the deposit of 0CPs from air to soil. However,fo/fair of heptachlor, heptachlor epoxide,u/y-chlordane,trans-nonachlor,endosulfan sulfate and a/γ-HCH (1.90~ 73.25),which is greater than I,means that soil is secondary pollution source of OCPs in air.
