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我们喝下的每滴饮用水经历了哪些保障措施?
2017-08-14 07:43:42 中国青年网
日常生活中,当我们打开水龙头,或许很难想到一滴饮用水从头到尾的安全保障措施有多复杂。今天我们一起来看看,每一滴饮用水经历了哪些保障措施?追根溯源,这些饮用水基本都源自成都各大水源地。每个水源地都设立了众多水质监测点。原水通过输送泵站进入原水管道抵达水厂,便开启了一段脱胎换骨的神奇旅程。水质经过净化达到一般自来水标准后,就可出厂输送至千家万户。
饮用水水源保护区如何划分?国家建立了饮用水水源保护区制度,饮用水水源保护区分为一级保护区和二级保护区。必要时,可在饮用水水源保护区外围划定一定区域作为准保护区。就河流型饮用水水源保护区而言,划定水源保护区范围,应防止水源地附近人类活动对水源的直接污染。一般河流水源地,一级保护区水域长度为取水口上游不小于1000米、下游不小于100米范围内的河道水域,同时陆域沿岸纵深与河岸的水平距离不小于50米。
根据《成都市饮用水水源保护条例》,一级保护区措施最为严格,禁止在地表水饮用水水源一级保护区内从事下列活动:
(一)使用农药和化肥;
(二)清洗车辆;
(三)畜禽养殖、旅游、游泳、垂钓、采砂、清洗衣物或者其他可能污染饮用水水体的活动;
(四)法律、法规和该条例第十八条禁止的其他行为。禁止在地表水饮用水水源一级保护区内新建、改建、扩建与供水设施和保护水源无关的建设项目,已建成的与供水设施和保护水源无关的建设项目,由区(市)县人民政府责令限期拆除或者关闭。成都晚报记者 黄尚斐
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