The environmental evaluation system of non-hazardous vegetable bases are discussed, the sources of pollution factors of production bases and harms on vegetables are analyzed.
本文初步探讨了无公害蔬菜种植生产基地的环境评价体系，分析了基地污染因素的来源和对蔬菜造成的危害。
The study on elemental speciation in airborne particulate matter (PM) is important for its evaluation of toxicity and source of pollution.
大气颗粒物中元素的种态研究，对评价其毒性和污染来源等有很重要的意义。
The change law, pollution characteristics and causes of formation are discussed on the basis of synthetic evaluation of water quality situation over the years in Yining city section.
在对伊犁河伊宁市段历年水质状况进行综合评价的基础上，探讨了城市河段水质的变化规律、污染特征和成因。
By applying probability statistics, a comprehensive evaluation has been made on the pollution risk for different production, pollution sources and environmental function areas.
运用概率统计法对不同生产方案、不同污染源强及不同环境功能区的污染风险进行了综合评价研究。
The method not only can overcome static-space evaluation of groundwater quality depending on monitoring value in certain year, but also sum up standard excess rate, pollution ind…
该方法既克服了依靠某年监测值对地下水质的静态空间评价，又可将超标率、污染指数和超标面积综合起来，完成地下水水质的动态评价。
This paper summaries the main evaluation methods on economic loss of water pollution in our country. Advantages and shortcomings of different evaluation methods is also analyzed and compared.
系统地总结了我国水污染经济损失的主要计量方法，分析比较了各种计量方法的优缺点。
This paper summaries the main evaluation methods on economic loss of water pollution in our country. Advantages and shortcomings of different evaluation methods is also analyzed and compared.
系统地总结了我国水污染经济损失的主要计量方法，分析比较了各种计量方法的优缺点。
应用推荐