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嘉陵江四川广元段铊超标4.6倍:污染源初步判定

2017-05-07 10:31:17   

原标题:嘉陵江四川广元段铊元素超标4.6倍:污染源已初步判定

嘉陵江资料图

央广网广元5月7日消息(记者韩民权)据中国之声《新闻纵横》报道,本月5日,四川省广元市环境保护局官方微博“广元环保”发布的一则“关于嘉陵江水质铊超标应急处置情况通报”引发各方关注。通报称,嘉陵江入川断面出现水质异常,根据监测数据,用于城区居民生活供水的西湾水厂水源地水质铊元素超标4.6倍。随后,一些嘉陵江沿岸镇政府发布的紧急通知也开始在网上流传,提醒嘉陵江、康宁河沿岸群众,在问题查清之前“禁止人畜饮用江、河水,禁止一切水上作业”。据称,这次水污染造成了广元市城区出现大面积停水。目前,发生水污染已有两天时间,此次水污染对百姓生活带来了哪些影响?相关处置恢复工作进展如何?

5日,广元市环境监测中心站监测发现嘉陵江入川断面出现水质异常,根据监测数据,西湾水厂水源地水质铊元素超标4.6倍,远远超出了国家地表水环境质量0.0001㎎/L的标准,对百姓用水安全造成严重威胁。

水污染发生后,广元市立即采取了净水处理、泄洪和加密监测等应急措施,西湾水厂也随即停产。为了全力保障市民生活用水,广元市立即启动了可实现日产3至4万吨的城市应急供水,同时,从6日早上8点起,15辆消防车、环卫车、专用送水车对广元市东坝、南河、万源、雪峰和老城片区部分供水不足的区域实施送水服务。

然而,此次嘉陵江水质遭污染仍给广元城区部分区域和高层楼房的居民带来了一定影响。

水污染发生后,广元市环境监测中心站也加强了对嘉陵江广元段的监测范围和力度,广元市环保局总工程师乔良告诉记者,从6号0点开始,嘉陵江广元段铊浓度开始出现下降趋势,“我们在例行监测中,发现铊元素超标,我们增加了监测断面,加大监测力度,根据这个情况,采取了一些措施,上游有个潜溪河,我们有拦水坝,把拦水坝打开,增加开闸放水,下游上石盘,也加大泄洪流量,增加水的流速,污染就慢慢降下来了。”

在6日晚上9点的时候,监测数据显示西湾水厂水源地水质铊元素浓度已降至0.0001mg/L,达到国家标准,上游无新增污染物,嘉陵江流域水质趋于稳定,乔良告诉记者,当地将根据情况开展恢复供水工作,“目前,污染物铊浓度已经稳定达标,有关部门正抓紧做好恢复西湾水厂供水各项准备工作,下一步我们也将持续做好水质监测和污染源排查工作,消除隐患,确保饮水安全。”

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