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随着农村城镇化、农民集镇化水平的提高以及农村种养业规模化、城市工业化的推进,工业废水、城市污水、农业面源污染三大“污手”对农村水源特别是渔业水域构成了新的威胁,它不仅直接污染水面且已开始污染地下水。基于此,就所在地(某县级市)近3 a来渔业水域污染发生特点和规律开展了专题调研。现将调查结果分析如下。
With the rural urbanization, farmers raise the level of urbanization and the scale of rural breeding industry, urban industrialization advancement, industrial wastewater, urban sewage, agricultural non-point source pollution, “dirty hand” on rural water sources, especially fishery waters Pose a new threat that not only directly pollutes the water but also begins to pollute the groundwater. Based on this, we conducted a special survey on the characteristics and laws of the occurrence of pollution in the fishery waters in the past three years since the county was located (a county-level city). Now the survey results are as follows.