长江河口区域有机污染物的特征分析

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0.16 μg/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. 

Character Analysis of Organic Pollutants in Yangtze Estuary Area

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