贵阳市水环境中6种酞酸酯类污染现状研究

Studies on pollution by six phthalates in aquatic environment of Guiyang

为了解贵阳市水环境中邻苯二甲酸酯类物质的污染情况,对贵阳市部分水样进行了气相色谱分析。每个采样点均检出邻苯二甲酸酯类物质,其中所有的采样点均检出邻苯二甲酸二丁酯(DBP)和邻苯二甲酸(2-乙基己基)酯(DEHP),最高含量分别为13.9μg.L-1和31.6μg.L-1。7个采样点检出邻苯二甲酸丁基苄基酯(BBP),最高含量为25.9μg.L-1。部分采样点中邻苯二甲酸二乙酯(DEP)也被检出。均未检出邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二辛酯(DOP)。结果表明贵阳市水体中的酞酸酯类污染物目前以邻苯二甲酸二丁酯、邻苯二甲酸(2-乙基己基)酯为主,并且污染比较严重。

In order to better understand the pollution of phthalates in Guiyang aquatic environment, water samples were collected and gas chromatograph was applied to the content analysis. Results showed that no water samples did not contain phthalates. Di-butyl phthalate （DBP） and di-（2-ethylhexyl） phthalate （DEHP） were found in all samples with the highest concentration of 13.9 μg.L^-1 and 31.6 μg.L^-1 respectively. Butylbenzyl phthalate （BBP） was detected in seven water samples, the maximum concentration of which reached 25.9μg.L^-1. At the s .me time, diethyl phthalate （DEP） was detected only in a few samples, but di-methyl phthalate （DMP）, di-octyl phthalate （DOP） were not detected in all samples. The investigaion indicated that the main pollutants of phthalates were DBP and DEHP in aquatic environment of Guiyang in a serious status.