| 摘要: |
| 于1988年8月和1989年11月在巢湖西部的南淝河下游、河口及湖区采集水样,用GC/MS法分析,检出了酚类、农药、氯代烃类、脂肪烃、苯系物,以及多环芳烃等多种有机污染物,表明巢湖部分水域已受到污染。河水中检出的多环芳烃的浓度要比湖水中的高得多。实验室藻培养液的分析说明,湖水中存在的α-蒎烯、薁、二甲基二硫化物、6-甲基-2-庚酮是来源于生物的;湖水中存在的正十七烷也部分地来源于藻类活动。用富营养化水体作为水源经氯化处理生产自来水,会增加自来水中潜在致突变物质的含量。 |
| 关键词: 巢湖 污染 富营养化 |
| DOI： |
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附件 |
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| WATER POLLUTION AND EUTROPHICATION OF THE NORTHWESTPART OF THE CHAOHU LAKE |
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Zhu Xinru, Yao Weixi, He Fenzhu, Liu Xiufen, Wang Dali, Wang Wen
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The Research Center for Eco-environmental Sciences Academia Sinica, Beijing 100083
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| Abstract: |
| The paper gives the GC/MS analysis results of the water samples collected from downstream of The Nanfei River, and the Chaohu Lake in August, 1988 and November, 1989. Phenols,. pesticides, chlorohydrocarbons, aliphatic hydrocarbons, benzene hydrocarbons, and polynuclear aromatic hydrocarbons were found there, it showed that The Nanfei River conveys industrial waste into the lake and the related lake area has been seriously polluted. Both river water and lake Water have been contaminated by the diesel leak from the engined boats as a large quantity hydrocarbons were found in the Waters. Eight PAH compounds are detected from the samples taken at river mouth: phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)an-thracene, benzo(k) fluoranthene, benzo(a)pyrene, and benzo(ghi)peryne, the concentrations are 0.37, 0.09, 0.63, 1.36, 0.17, 0.012, 0.007, 0.005 μg/L, respectively. PAHs are also detected in lake water samples but in much lower concentration.
α-pinene, azulene, dimethyl disulfide, and 6-methyl heptan-2-one detected in the lake water were biogenic, it is confirmed by the analysis of the algal culture liquid. The activities of algae also had a certain extent contribution to the existence of n-heptadecane in the lake water.
The paper gives a discussion on the issue of taking the eutrophic water as a source for the production of drinking water. In eutrophic waters, generally, the concentrations of amino acids, humic materials are higher than that in ground water or other surface water which is not eutrophic. Therefore, the production of mutagenicity resulting from chlorination of eutrophic water will be in a larger probability. |
| Key words: Chaohu Lake, Pollution, Eutrophication |
