摘要
从各个方面详细分析了承德市的水污染现状,在现状分析的基础上以2014年为基准年,得出承德市主要河流普遍受污染,入河排污口从整体角度看CODcr和氨氮为主要污染物。各测质口CODcr超过3类标准2.3~6.3倍,氨氮含量超过3类标准7~8.4倍;受污染较重的支流主要分布在区县城镇附近及各河道下游,主要污染参数为化学耗氧量、挥发酚、硝酸盐氮、氨氮等,超标率在16.7%~50%之间。除洒河(源头至大黑汀水库)段、兴洲河、武烈河高寺台以上河段、小滦河沟台子段,水质较好外,其它河段均出现不同程度的污染。总体表明,承德主要河流普遍受污染,并且污染程度是逐年上升趋势。
This paper analyzes the current situation of water pollution in Chengde City from various aspects. Based on the analysis of the present situation, the main rivers in Chengde City are general- ly polluted. Based on the overall view, CODcr and ammonia nitrogen As the main pollutant. The CODcr of the measured mouth is more than 3 to 2. 3 times, and the ammonia nitrogen content is more than 7 to 8.4 times. The heavy contaminated of the town and the lower reaches of the river, and tributaries are mainly distributed in the vicinity the main pollution parameters are chemical oxy- gen consumption Amount, volatile phenol, nitrate nitrogen, ammonia nitrogen, over standard rate between 16.7 - 50%. In addition to the sprinkle river （source to the big Heiting reservoir） sec- tion, Xingzhou River, Wulie River High Temple above the river, small Luanhe ditch table sub - section, the water quality is better, the other sections are different degrees of pollution. The general indicates that the main rivers of Chengde are generally polluted, and the pollution degree is increasing year by year.
出处
《水利科技与经济》
2017年第11期41-46,共6页
Water Conservancy Science and Technology and Economy
关键词
水资源
评价
承德市
water resources
evaluation
Chengde city
