南渡江流域水质调查与分析

Investigation and Analysis of Water Quality in Nandu River Basin

为了了解南渡江水质状况,在不同时间分别对南渡江水域等18个点进行了两次现场水样采集和保存,水质调查指标包括对23项常规理化参数和21项有机污染物进行化验。测试方法参考国家生活饮用水标准检验方法对南渡江流域18个取样点的样品进行了水质调查分析。其中处于近海口流水坡点和南渡江大桥点,各别的理化参数超标,主要原因是海水入侵导致。南渡江水域没有检测出上述的有机物污染。整体来看,南渡江流域的水质参数符合地表水环境质量标准。

In order to understand the water quality of Nandu River, two on-site water samples were collected and preserved respectively at18 points of Nandu River at different times. The water quality survey indicators included23 routine physical and chemical parameters and21 organic pollutants. The analysis of samples was carried out according to the national standard testing method of drinking water. The experimental results showed that individual physical and chemical parameters of Liushuipo point and Nandujiang bridge point at the mouth of the sea exceeded the standard because of the seawater intrusion. Organic pollutants were not detected in Nandu River water. The overall water quality of Nandu River was basically in good condition, which had little effect on the state of human health and aquatic life.