环境背景值

huán jìnɡ bèi jǐnɡ zhí
  • environmental background value
环境背景值环境背景值
  1. 沙尘暴降尘对甘肃大气环境背景值的影响研究

    The Research on the Effect of Sand Storm Dustfall on Air Environmental Background Value in Gansu Province

  2. 大岗山林区水体、空气、噪声环境背景值研究

    Study on the Environmental Background Value of Water , Air and Noise in the Forest Area of

  3. 渤海湾及其附近海域沉积物中Cu,Pb,Zn,Cd环境背景值的研究

    The study of environment background concentrations of cu , pb , zn , CD in the sediment of the Bohai Bay and adjacent sea area

  4. 结果表明,以上海市土壤环境背景值上限值为评价标准,所有土壤样品Pb、Cd、Cu和Zn的超标率分别为10.1%、25.4%、6.5%和8.7%;

    With the upper limit of the background values of Shanghai set as criterion for evaluation , 10.1 % 、 25.4 % 、 6.5 % and 8.7 % of the soil samples exceeded the criterion for Pb , Cd , Cu and Zn , respectively .

  5. 通过对上海市区44个公园土壤中Pb含量的调查,发现表层土壤中Pb的平均含量为55.06mg/kg,变幅为26.39-174.35mg/kg,为上海市土壤环境背景值的1.04-6.85倍。

    Lead concentrations in surface soils of 44 urban parks of Shanghai were determined . Results showed that Pb concentrations in the soils averaged 55.06 mg / kg , ranging from 26.4 to 174.4 mg / kg , which was 1.04-6.85 times the background value of soil Pb in Shanghai .

  6. 温州市土壤环境背景值分异规律研究

    Research on the soil environment background value differentiation regularity of Wenzhou

  7. 洞庭湖水系水体环境背景值调查研究

    Studies on Environmental Background Levels in Waters of Dongting Lake System

  8. 环境背景值调查研究土壤标准物质的研制

    The development of soil reference materials for environmental background study

  9. 基于稳健统计的土壤环境背景值研究及应用

    Determination and Application of Soil Environmental Background Concentrations Based on Robust Statistics

  10. 重金属环境背景值研究

    The research of environmental background values of the heavy metal

  11. 石河子市地下水环境背景值

    Environmental background values of the groundwater of Shihezi City

  12. 地下水环境背景值及其确定方法

    The concept of groundwater environment background and its determination

  13. 土壤环境背景值图件的绘制方法

    Method for Drawing Figure of Soil Elements Background Value

  14. 福建省海岸带土壤环境背景值研究及其应用

    Study and Application of the Soil Environmental Background Values in Fujian Coastal Zone

  15. 洞庭湖水系铀的水环境背景值研究

    Study on environmental background values of uranium in water of Dongting Lake system

  16. 浙江省主要类型土壤中元素的环境背景值

    Environmental background levels of trace elements in major soil categories in Zhejiang Province

  17. 吉林东部花岗岩区地下水环境背景值初步研究

    A primary study on backgrounds of groundwater from granite area in East Jilin Province

  18. 湘江谷地主要土壤类型中八个元素的环境背景值研究

    Study on background values of eight elements in the soils of the Xiangjiang Valley

  19. 地下水环境背景值研究在制定环境质量标准中的应用

    Application of groundwater environment background value to the establishment of the environment quality standard

  20. 五台山土壤环境背景值及其垂直分异规律

    Study on the background levels and vertical distribution in soils of Wutai Mountain Area

  21. 吉林省地下水环境背景值特征及其变异规律

    The characteristics of environmental background values of groundwater and their variation regularities in Jilin Province

  22. 石河子市主要农业土壤中若干元素的环境背景值

    Environmental background values of Several elements in main sorts of agricultural soil of City Shihezi

  23. 松辽平原土壤环境背景值区域特征及分布规律

    Regional Features of Soil Background Values and Their Distributive Rules in the Songhuajiang-Liaohe Rivers Plain

  24. 水环境背景值的实验室测定研究

    Determining Water Environmental Background Values in laboratory

  25. 应用概率密度套合法编制区域地下水环境背景值图的探讨

    The application of probability density registered method to compiling the map of regional groundwater background value

  26. 不同的土壤元素环境背景值分布规律既有共性又有差异性。

    There are both common and different distribution rule in the environmental background values of soils .

  27. 渤海沉积物中重金属分布及环境背景值

    The distribution and environmental background values of the heavy metals in sediment of the Bohai Sea

  28. 湄洲湾海域底质重金属环境背景值研究

    A study on the environmental background values of heavy metals in the sediments of Meizhou Bay

  29. 环境背景值分析。

    Analysis of environment background .

  30. 乔治王岛菲尔德斯半岛地区环境背景值初探

    Preliminary exploration on the environmental background values in Fildes Peninsula area of King George island , Antarctica