The waterquality nearshore of Liaoning Province was assessed with an environmental quality index model.
应用环境质量指数模型，对辽宁近岸海域水质质量进行评价。
2
Composite index analysis is based on the relative concentration of quality components in its environmental quality standards to judge the pollution levels of the water-quality status.
水环境质量评价指数法是根据水质组分浓度相对于其环境质量标准的大小来判断水的质量状况。
3
The grey system assessment method, air pollution integrated index are applied to evaluate the atmosphere, surface water, noise environmentalquality of valley cities in western China.