This article introduces the major environmental issues with Fu Xian lake, analyzes pollution reason and changes in major pollution indexes of lake, predicts the tendency of lake pollution.
介绍了抚仙湖的主要环境问题，分析了抚仙湖污染成因和湖泊主要污染指标的历史变迁，预测了湖泊环境污染趋势。
Biochemical oxygen demand (BOD5) is one of the important indexes of organic pollution. It is also an important parameter of environmental monitoring.
生化需氧量(BOD5)是一个重要有机污染指标，是环境监测的重要参数之一。
Biochemical oxygen demand (BOD5) is one of the important indexes of organic pollution. It is also an important parameter of environmental monitoring.
生化需氧量(BOD5)是一个重要有机污染指标，是环境监测的重要参数之一。
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