始，沱江水氨氮最高超标50倍；而后居高不下，3月1日，氨氮最高超标50．3倍；3月7日、8日，氨氮最高超标均在40倍以上；从3月13日开始，氨氮才降至标准以下。其造成的经济损失达2亿多元，引起沱江近100万人饮用水中断1个月左右，有关部门估计沱江的生态要恢复到事件前的状况至少要5年时间。Р1.5对于今后开发的建议РРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilitiesРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilitiesРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
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