昆明市盘龙江干季水质调查与分析

Water Quality Survey and Analysis of Panlong River of Kunming in Add Season

通过对干季盘龙江水质进行调查研究。结果表明：盘龙江上段水质良好，到了中段水质逐渐变差， 而下段水质指标严重超标。在水质各污染指标中，以氮、磷污染最显著，水中氨氮、全磷量浓度大，水中COD指标在中下段超标严重，溶解氧浓度低。水质中重金属污染不明显。城市生活污水是盘龙江水质污染的主要污染源。

Survey and research on Panlong River water quality in arid season, the results show that the water of Panlong River upstream is high quality. The water quality of middle stream is worse and worse and many water quality indexes have surpassed national standards too much in the down stream. Among several water quality polluted indexes, the nitrogen pollution and phosphorus pollution in the water are the most serious. The concentration of ammonia nitrogen and total phosphorus in the water are too high. The COD index in the middle stream and the down stream surpasses the water quality standard seriously, and the concentration of DO is lower. The heavy metal pollution in the water is not obvious. The city domestic wastewater is the main pollution source of Panlong River water quality pollution.