水资源保护



凡是排放或释放污染物并引起水体污染的工业废水、城市生活污水和地表径流，称之为水体污染源。

水体污染源的调查是控制水体污染、保护水资源的重要环节。调查的方法一般采用普查发、现场调查法、经验估算法及物料平衡法等。

对于点源污染应调查的项目对于点源污染应调查的项目（1）排污孔的地理位置及分布

（2）污水量及其所含污染物的种类、浓度或各种污染物的绝对数量（3）排污方式（4）排污规律

（5）排污对水环境质量的影响

对于面源污染应调查的主要项目（1）水体所在流域内地表径流的数量，经地表径流带入水体内污染物的种类和数量。

（2）水体水面大气降水的数量及经大气降水带入水域内污染物的种类和数量。

（3）水域内花费、农药使用情况，农田灌溉后排出谁的数量及所含污染物的种类、浓度。

（4）水域内地下水流入水体的数量及携带污染物的种类和浓度

（5）水域内的村镇具名状况，直接或间接排入水体的人、畜用水的数量及携带污染物的种类和浓度。

2.污染源的及评价

评价数据的选取与处理

筛选数据，取代表性的数值（算术平均值、中位值、加权平均数）

Reality评价标准

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