大气中重质氯代烃的沉积。

Deposition of heavy chlorinated hydrocarbons from the atmosphere.

作者信息

McClure V E, Lagrange J

出版信息

Bull Environ Contam Toxicol. 1977 Feb;17(2):219-24. doi: 10.1007/BF01685554.

Abstract

A sensitive method for the measurement of deposition fluxes of volatile and aerosol chlorinated hydrocarbons (CHC) is presented. Fluxes of CHC ranging from 10(-6) to 10(-9) g m-2 day-1 for the 54% chlorine PCB mixture were measured at La Jolla, California (average: 3 x10(-7) g m-2 day-1) during February, 1972. PCB fluxes are correlated with the component of the wind trajectory in the direction of Los Angeles weighted by the reciprocal of the wind speed. Chlorinated pesticide fluxes (DDT and dieldrin) are correlated with winds from agricultural areas inland from the measuring site.

摘要

介绍了一种测量挥发性和气态氯代烃（CHC）沉积通量的灵敏方法。1972年2月在加利福尼亚州拉霍亚测量了54%氯含量的多氯联苯混合物中CHC的通量，范围为10^(-6)至10^(-9) g m^(-2) 天^(-1)（平均值：3×10^(-7) g m^(-2) 天^(-1)）。多氯联苯通量与风速倒数加权的洛杉矶方向风轨迹分量相关。氯代农药通量（滴滴涕和狄氏剂）与测量地点内陆农业地区吹来的风相关。