长江河口区域有机污染物的特征分析

Character Analysis of Organic Pollutants in Yangtze Estuary Area

对2002-2003年采集于长江河口区域的水样进行了检测分析．共鉴定出有机污染物9类234种，包括VOCs23种、SVOCs211种；其中属美国列出的129种优先控制污染物的有49种，属我国列出的58种优先控制污染物的有24种，属GB3838—2002控制的有19种．VOCs主要包括卤代烃类和单环芳香族类，其质量浓度平均值分别为0．42和0．17μg／L．SVOCs主要包括多环芳烃类、酯类、单环芳香族类、卤代烃类、酚类和醚类，其质量浓度平均值分别为0．50，1．13，0．41，0．06，0．07和0．16μg／L；其中多环芳烃类、酯类和单环芳香族类的污染程度相对较高，分别超标1．78，0．16～0．37和0．002～0．44倍．

The check measurement to the water from Yangtze estuary area in 2002-2003 was carried out. The qualitative results demonstrate that 234 kinds of organic substances in 9 categories are checked out, including 23 kinds of VOCs and 211 kinds of SVOCs; there are 49 kinds of EPA priority-controlled organic substances, 24 kinds of national priority-controlled organic substances, and 19 kinds of GB3838-2002 controlled organic substances. The quantitative results demonstrate that VOCs mainly embrace halogenated hydrocarbons and mononuclear aromatics whose average mass concentrations are 0.42 and 0.17 μg/L, respectively; SVOCs mainly embrace PAHs, esters, mononuclear aromatics, halogenated hydrocarbons, phenols and ethers whose average mass concentrations are 0.50, 1.13, 0.41, 0.06, 0.07 and 0.16 μg/L, respectively; the pollution of PAHs, esters and mononuclear aromatics whose overruns are 1.78, 0.16 - 0.37 and 0.002 - 0.44, respectively is relatively serious.