环境自净能力指的是自然环境可以通过大气、水流的扩散、氧化以及微生物的分解作用，将污染物化为无害物的能力。环境的自净能力是环境的一种特殊功能。受污染的环境，经过一些自然过程及在生物的参与下，都具有恢复原来状态的能力。
... 环境自净;environmental self-purification 正离子;阳离子;cation;positive ion 环境自净能力;self-purification capacity of environment ...
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它是描述一个地区水环境自净能力大小的定量指标。
It was a quantitative target for describing of self-purification capacity of water environment of area.
根据地震等级和风力等级的计算原理，提出了区域水环境自净能力等级的概念。
According to the calculating principle of wind scale and earthquake magnitude, the concept of the magnitude of self-purification capacity of water environment of area was put forward.
排污权是权利人依法享有的对基于环境自净能力而产生的环境容量进行使用、收益的权利。
The emission right is one of the rights that the obligee could exercise and benefit from the environmental capacity which on the basis of environmental purge ability.
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