刘杰,易齐涛,严家平

• 1:淮北矿业股份有限公司
• 2:安徽理工大学地球与环境学院

摘要(Abstract)：

为掌握研究濉萧矿区采煤沉陷水域及河流水系的污染及动态变化特征,在研究区及周边3条河流设置水质观测点,对DO、NH_4-N、CODcr等21项指标进行监测,并按照季节不同采集年内不同时间段样品,选取单因子评价法、综合污染指数法、分级评价法及综合水质标识指数法4种评价方法进行评价。分析认为:综合水质标识指数法包含信息全面,评价结果可靠,适用于塌陷区水体污染特征识别和水质评价,并对水体功能区划与定位具有很强的指导作用。3个沉陷区水域综合水质标识指数(Ⅰ_(wq))均值为3.140,达到Ⅲ类水质标准,主要污染物为CODcr、总磷(TP)、总氮(TN)和汞(Hg)。5个河流监测断面Ⅰ_(wq)均值为5.352,达到Ⅴ类水质标准,水体污染较为严重。研究结果表明由于沉陷区水体水质较好,但环境容量较低,区内的河流因受城市工业和生活污染较严重。

关键词(KeyWords)： 水质评价;评价方法对比;指数法

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41202242)

作者(Author): 刘杰,易齐涛,严家平

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