摘要
对基于河流的水质标识指数法进行了改进,使其适用于海域。将改进后的标识指数法应用于深圳市近岸海域水质评价,并对东西部海域水质进行了对比与分析。研究结果表明,西部海域的活性磷酸盐、无机氮、非离子氨和大肠菌群超标,全部劣于四类标准;东部海域水质良好,达到第一类或第二类标准。主要原因是西部近岸海域生态遭受破坏,陆源污染未得到有效控制,并且受珠江口污染影响,而东部海域则生态环境保护较好,入海污染源较小。标识指数法不仅可以判断水质是否超标,而且能够确定水质具体类别,具有计算简单、分析结果直观等优点,值得推广使用。
Identification Index method based on surface water quality is improved to suit to sea water assessment. This method is applied to water quality assessment of Shenzhen eastern and western coast ocean, and the outcomes are compared and analyzed. The research results show that, active phosphate, inorganic nitrogen, non - ionic ammonia and coliforms are exceed the standard in the western coast ocean, which means water quality is inferior than the forth class, because ecosystem of western coast has been destroy greatly, and a great deal of waste load come from the city, at the same time pollution affects each other in Pearl River Gate. However, water quality keeps good in the eastern coast ocean which reaches the first even the second class, for environment keeps natural in eastern coast, and pollution from land has been control. Identification index method can not only determine weather water quality exceeds standard, but also determine the specific categories. And it＇s easy to use with an intuitive results, which is worthy of further promoting for water quality assessment.
出处
《环境科学与管理》
CAS
2009年第8期159-163,共5页
Environmental Science and Management
关键词
水质标识指数法
水质评价
深圳
近岸海域
water quality identification index method
water quality assessment
Shenzhen
coast ocean
