2016年太湖水质状况的综合评价与分析
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摘要
为了解太湖水质及富营养化情况,采用单因子评价、综合污染指数、污染物分担率和综合营养状态指数等评价方法,对2016年太湖各湖区水质监测数据进行综合评价。结果表明2016年全太湖及太湖无锡水域总体水质符合Ⅳ类标准,定类指标均为总磷,总氮作为单独评价指标,均符合Ⅴ类标准,水体均处于轻度富营养。全太湖各项主要水质指标浓度略好于太湖无锡水域。GIS绘图显示太湖各湖区总体上东、南部水质好于西、北部。其中西部水域竺山湖心一带为太湖污染最严重的水域,东部、南部、湖心区水域维持较好水质。
To study the water quality and eutrophication situation of Tai Lake,the water quality monitoring data of Tai Lake in 2016 were evaluated, comprehensively based on the single factor index appraisal method,share rate of pollutants,combination of the comprehensive trophic status index method and comprehensive contamination index(TLI) method. Results showed that,in 2016, the water quality of Tai Lake in Wuxi reached Ⅳ class standard, the indicator to determine the category is TP, TN reached Ⅴ class standard which was individual evaluation index. Tai Lake in Wuxi were all lightly eutrophicated. The concentration of all the main water quality indexes in Tai Lake was slightly better than Tai Lake in Wuxi. The water quality GIS map of Tai Lake showed the water quality of east and south area was better than that of west and north area. The western water,especially the Zhushan Lake, was the most polluted area in Tai Lake, and the water quality in the eastern, southern and central areas were better.
To study the water quality and eutrophication situation of Tai Lake,the water quality monitoring data of Tai Lake in 2016 were evaluated, comprehensively based on the single factor index appraisal method,share rate of pollutants,combination of the comprehensive trophic status index method and comprehensive contamination index(TLI) method. Results showed that,in 2016, the water quality of Tai Lake in Wuxi reached Ⅳ class standard, the indicator to determine the category is TP, TN reached Ⅴ class standard which was individual evaluation index. Tai Lake in Wuxi were all lightly eutrophicated. The concentration of all the main water quality indexes in Tai Lake was slightly better than Tai Lake in Wuxi. The water quality GIS map of Tai Lake showed the water quality of east and south area was better than that of west and north area. The western water,especially the Zhushan Lake, was the most polluted area in Tai Lake, and the water quality in the eastern, southern and central areas were better.
引文
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