浑河清原流域地表水中多环芳烃污染特征及源解析

Pollution Characteristics and Source Analysis of Polycyclic Aromatic Hydrocarbons in Surface Water in Qingyuan Basin of Hunhe River

以浑河清原流域为对象,研究了16种多环芳烃(PAHs)化合物的质量浓度、组成、分布等污染特性,并利用特征比值法对其污染来源进行分析。研究结果表明:浑河上游清原段地表水中总PAHs质量浓度为176.49~4899.83 ng·L^(-1),总PAHs质量浓度平均值为953.51 ng·L^(-1);3环和4环PAHs为各采样点PAHs的主要组分;该流域PAHs污染的主要来源为生物质和煤的燃烧,这一结果与当地的生产生活实际相符。

The pollution characteristics such as content,composition,and distribution of 16 polycyclic aromatic hydrocarbon(PAHs)compounds in Qingyuan Basin of Hunhe River were studied,and their pollution sources were analyzed using the characteristic ratio method.The results showed that the range of total PAHs in surface water of the upper Qingyuan section of Hunhe River was 176.49~4899.83 ng·L^(-1),and the mean value of total PAHs content was 953.51 ng·L^(-1).3 and 4-ring PAHs were the main components of PAHs in the sampling points.The main sources of PAHs pollution in this basin were biomass and coal combustion,and this result was consistent with the local production,and living reality.