摘要
通过对五里湖—梅梁湖洗涤剂“禁 (限 )磷”前后水体磷含量变化的调查 ,表明 ,禁止使用含磷洗衣粉两年后 ,五里湖水体中总磷含量降低 2 0 % ,梅梁湖总磷含量也有下降趋势 ,但是五里湖近 5年的总磷监测结果均超过《地表水环境质量标准》(GHZB 1- 1999)中Ⅴ类标准。指出 ,洗衣粉中所含的磷是湖区磷污染的重要来源 ,而水体磷负荷的大量来源是人体排泄、农业面源 (含畜禽、水产养殖 )和工业点源。提出 ,“治前”(禁磷 )是前提 ,“治后”(除磷 )是手段 ,根本的一条是控制入湖的总磷量 ,维持湖体生态平衡。
To investigate the change of phosphorus in water of Wuli Lake and Meiliang Lake before and after No Use of Phosphorus contained Washing Powder. Two years after No Use of Phosphorus contained Washing Powder, total phosphorus in water of Wuli Lake was decreased 20%, total phosphorus in water of Meiliang Lake was also decreased. But determination results of total phosphorus in water of Meiliang Lake in past five years were all surpass Ⅴ level standard suggested by GHZB 1-1999. It pointed out that phosphorus in washing powder was the important source of phosphorus pollution of lake water, and the great sources of phosphorus in water came from human's excrement, agriculture pollution and industrial pollution. The key method was to control the total phosphorus intake of lake water.
出处
《环境监测管理与技术》
2001年第6期18-20,共3页
The Administration and Technique of Environmental Monitoring
关键词
磷污染
调查
五里湖-梅梁湖
水体污染
Phosphorus pollution
Investigation
Wuli Lake and Meiliang Lake
