黄河重点河段水环境有毒有机物污染现状浅析

Current situation of toxic organism-induced pollution in water environment of critical section of Yellow River

以黄河水污染重点研究河段和来水相关区的中游干流、支流较大区间为调查对象,开展了有毒有机物的专项筛选和重点识别工作。对13个地表水断面、11个底质测点样品进行了GC MS联机分析。结果表明,研究河段不但有毒有机物的种类繁多,包括了酞酸酯类、酚类、氯苯类、多环芳烃类等多种类型的有毒有机物,而且有毒有机污染状况较严重,酞酸酯类是调查中峰值最高的一类有毒有机物。同时对特征有毒有机物提出了控制对策建议。

With the critical section of the Yellow River for research of water pollution and the related regions of water inflowing on the mainstream and some tributaries of the middle Yellow River taken as the objectives for investigation, the work of special screening and identification of toxic organic pollutants is performed. The on-line GC-MS analysis of samples from 13 surface water sections and 11 bed load measuring points shows that there are many kinds of toxic pollutants in the river sections, including phthalates, hydroxybenzenes, chlorinated benzenes, and PAHs, of all the pollutants, the content of phthalates being the highest, and that the pollution induced by the toxic organic pollutants is very serious. Meanwhile, some suggestions are made for control of the toxic organic pollutants.