【摘要】 串联极性和非极性固相萃取柱对太子河中游水样进行富集,应用气相色谱-质谱联用仪(GC-MS)定量测定了近百种有机污染物,结果显示,太子河中游河段污染物种类繁多,苯系烃浓度为1.77~11.20μg/L;常见多环芳烃(PAHs)总浓度为2.72~13.89μg/L,与国内污染较重水体中的浓度相当;一元苯酚总浓度为8.31~20.86μg/L,部分超过国家《地表水环境质量标准》(GB 3838-2002)Ⅳ类水限值;硝基苯类物质虽未超过国家GB 3838-2002限值,但普遍高于国家其他水体浓度。应用改进潜在风险指数法筛选出40种优先控制污染物,其中萘、荧蒽、间甲酚、对硝基甲苯为中国水中优先控制污染物黑名单中物质;PAHs来源解析显示,PAHs主要来源于化石燃料燃烧和石油源。更多还原

【Abstract】 The water samples of Taizihe River were prepared using polar and nonpolar solid phase extraction column con-nected in series and about 100 organic contaminants were quantitatively determined by gas chromatography-mass spectrogra-phy(GC-MS).The data show that the organic pollutants in Taizihe River are varied. The concentration of benzene hydrocar-bons is 1.77~11.20 μg/L. The total concentration of common polycyclic aromatic hydrocarbon(PAHs) is 2.72~13.89 μg/L,approximately equal to the seriously polluted water body in China. The total concentration of monophenols is 8.31~20.86 μg/Land some samples exceed Grade Ⅳ of China Environmental Quality Standard for Surface Water(GB 3838-2002). Nitrobenzenes are below the national standard(GB 3838-2002) but higher than the other water body in China. 40 prior organic pollu-tants are selected applying modified potential hazard index method and naphthalene, fluoranthene, m-cresol and para-nitro-toluene belong to "China Blacklist of Priority Control Pollutants in Water". Results of sources apportionment demonstrate that PAHs are derived chiefly from the burning of fossil fuels and petroleum.更多还原