摘要
对秦皇岛市2013-2017年的地表水水质监测数据进行分析与评价。按照年均值统计,3个水库中Ⅱ类水质占88.6%,Ⅲ类水质占11.4%,其中桃林口水库水质最好,石河水库次之,洋河水库水质最差。8条河流中Ⅰ~Ⅲ类水质占56.3%,Ⅳ类水质占26%,Ⅴ类水质占3.1%,劣Ⅴ类水质占14.6%。水质最差的河流为饮马河,水质综合指数呈先升后降趋势,水质整体呈现好转趋势。
The monitoring data of surface water quality in Qinhuangdao ibr 2013-2017 years were analyzed and evaluated. According to the annual mean statistics,88.6% of the 3 reservoirs in the reservoir and 11.4% of the grade III water quality, the best water quality in the Tao Lin Kou reservoir, the second of the Shi he reservoir, and the worst water quality in the Yang he River reservoir. In the 8 rivers, water quality of class I to III accounted for 56.3% , grade IV water quality accounted for 26% , class V water quality accounted for 3.1% , and inferior class V water quality accounted for 14.6%. The worst water quality was the Yin Ma River. The worst water quality is the Yin Ma River. Tile c, omprehensive index of water quality is rising first and then decreasing, and the water quality is showing an overall trend of improveinent.
出处
《科技风》
2018年第25期131-132,共2页
关键词
地表水
水质类别
富营养化
单因子评价
Surface water,Water quality category
Eutrophia
Single factor evaluation
