本文通过水质生物监测中的生物学指标的讨论，较准确的反映被监测水体的水质状况，进而对水体有机污染程度作出客观地评价。
We discuss water quality of water body with biologic index in biology monitoring of water quality, and make objective evaluation to organic pollution of water body.
生物化学需氧量bod是水质评价的必测项目，是衡量有机物对水质污染的重要质量指标。
Biochemical oxygen demand, BOD is necessary for water quality evaluation. It is an important index in measuring organic materials pollution.
上述肝脏抗氧化酶指标可作为水生生态系统中2,4 - DCP污染的生物监测指标。
These hepatic antioxidant indices mentioned above could be considered as biological monitoring indices of 2, 4-dcp pollution in aquatic ecosystems.
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