在水体污染方面具有重要的指示作用。
水体污染有多种形式。
这并不仅仅是由于过渡捕捞、水体污染或气候变化造成的。
It's not just about overfishing or Marine pollution or even climate change.
大家都知道，在地球上水体污染是严重的问题。
Everybody knows that there is serious problem of water pollution on the earth.
水体污染面广；
此外，水体污染在局部地带也是十分严重的环境问题。
Besides waters being polluted in partial area is a quite serious environment problem too.
水体中油类物质的污染是全球关注的又一焦点。
Water pollution from oil substances is another focus of global concern.
当前对水体危害较大的是人为污染。
At present a greater hazard to the water body is man-made pollution.
硝酸盐氮是水体中的主要污染物之一。
污染水体，不仅造成鱼，这亦是有害我们的健康。
The polluted water not only kills fish, it is also harmful to our health.
结果表明：水体基本达到V类水质标准。水质污染轻重排序为阿及堡<和平桥<七间房。
The result showed that the water quality had basically reached water quality standard V grade.
铅是环境水体中的主要重金属污染物之一。
Lead is one of the major heavy metal pollutants in the environmental water system.
铅是环境水体中的主要重金属污染物之一。
Lead is one of the major heavy metal pollutants in the environmental water system.
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