岷县地震灾害对当地水环境质量的影响分析

Analysis on the Impact of Earthquake Disaster on the Qualityof Local Water Environment In Min County

为了解地震对地表水环境质量的影响,文章以2013年7月甘肃省定西市岷县、漳县交界6.6级地震为背景,选取岷县受灾最严重的梅川镇和中寨镇,对所在主要河流洮河断面和集中饮用水取水口中11个常规项目和22个特定项目及生物指标项目进行分析评价,同时考虑地震后消杀物品使用量。经综合分析,岷县6.6级地震,整体上对主要河流洮河水质未造成影响,乡镇集中式饮用水水质也未受到影响,从水环境生物毒性分析结果来看,水质安全。

In order to understand the effect of earthquake on surface water environmental quality,The background of this paper is the July 2013 earthquake of magnitude 6.6 at the junction of Min County and Zhang County,Gansu Province,The worst-hit towns in Min County,Meichuan,Wuxue and Zhongzhai,11 conventional projects in the Tao River section of the main river and in the intake of concentrated drinking water and 22 specific items and biological indicator items were analyzed and evaluated,Also consider the use of killing materials after the earthquake.By comprehensive analysis,The 6.6-magnitude earthquake in Min County,The water quality of the major rivers in Tao River was not affected,The quality of centralized drinking water in villages and towns was not affected,Judging from the toxicity analysis of aquatic organisms,Water Safety.