依据单项污染指数法和内梅罗综合污染指数法来评价土壤重金属污染程度。
By adopting both the single factor index method and Nemerow multi-factor index method, the pollution indices were calculated to assess pollution extent.
选用综合污染等标指数、超标倍数和超标率等指标对水质污染状况进行评价。
Synthesis pollution equal criterion index, exceed multiple and exceed ratio were chosen as the index of synthesis assessments to the water quality effect.
对煤炭环境特性的单因子绩效评价法和综合污染特性指数法进行了分析和定义。
A new quantitative assessment method for coal environmental pollution property is defined by using the pollutants output per thermal unit and the comprehensive air pollution index.
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