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2011年6月杭州新安江有机物污染;2012年1月广西龙江镉污染事件;2012年2月镇江市发生苯酚污染;2012年3月武汉自来水厂加大氯气投放量;北京地下水开采过度,自来水中水垢多,水碱大、硬度大。据有关部门统计,中国75%的水源都受到不同程度的污染,自来水供水管网也存在着二次污染,自来水中的氯加热后会产生三氯钾烷,还有桶装饮水机多次加热后会含有大量亚硝酸盐
June 2011 Hangzhou Xinanjiang organic pollution; January 2012 Guangxi Longjiang cadmium pollution incident; February 2012 Zhenjiang phenol pollution; 2012 March Wuhan water plant to increase the amount of chlorine; Beijing groundwater over-exploitation, tap water In the scale and more water big, hardness. According to relevant statistics, 75% of China’s water sources are subject to varying degrees of pollution, tap water supply pipe network there are secondary pollution, chlorine in tap water will produce trichlorotoluene, as well as bottled water dispenser heating several times After will contain a lot of nitrite