对武汉生物工程学院问天湖湖水的水质进行监测,其中氨氮0.03～0.19 mg/L,总磷0.08～1.01 mg/L,化学需氧量(COD)22.26～58.22 mg/L,溶解氧(DO)2.79～4.31 mg/L,pH 7.60～8.25。由监测结果可知,pH值在正常范围内,氨氮与DO达标,总磷与COD超标,问天湖水质污染原因主要是有机物污染及磷引起的富营养化现象,并对如何改善水质提出了相应的治理对策。 The water quality of lake in Tianhu Lake was monitored by Wuhan Institute of Biological Engineering. Among them, ammonia nitrogen was 0.03-0.19 mg / L, total phosphorus was 0.08-1.01 mg / L, chemical oxygen demand (COD) was 22.26-58.22 mg / L, dissolved oxygen ) 2.79 ~ 4.31 mg / L, pH 7.60 ~ 8.25. From the monitoring results, we can see that the pH value is within the normal range, ammonia nitrogen and DO standards, total phosphorus and COD exceeded, water pollution caused by asked the main causes of organic pollution and phosphorus-induced eutrophication, and how to improve water quality corresponding The management strategy.