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沉积物环境质量基准
相关语句
  sediment quality guidelines
     The Difference and Cause Analyses of Freshwater Sediment Quality Guidelines
     淡水沉积物环境质量基准差异分析
短句来源
     Review of Approaches for Deriving Sediment Quality Guidelines
     水体沉积物环境质量基准建立方法研究进展
短句来源
     This review indicates that no single approach is likely to support deriving sediment quality guidelines(SQGs) under all circumstances.
     因此,至今还没有提出一种可广泛应用的沉积物环境质量基准建立方法。
短句来源
     Eight Sediment samples and corresponding interstitial water were collected from various sites in Dianchi Lake to determine metal concentrations and partitioning coefficient(Kp) for copper, zinc, lead, cadmium, chromium, mercury, and arsenic. With equilibrium partitioning approach and the state water quality criteria GB3838-2002, Ⅲ, sediment quality guidelines for metals in Dianchi Lake were derived.
     对滇池8个采样点沉积物固相和间隙水中的金属含量进行分析测定,用实测方法计算Cu、Zn、Pb、Cr、Cd、Hg、As等7种金属在滇池沉积物中的分配系数Kp,利用相平衡分配法和国家地表水环境质量标准(GB3838-2002)中的Ⅲ类水质标准确定了滇池沉积物环境质量基准.
短句来源
  “沉积物环境质量基准”译为未确定词的双语例句
     AET APPROACH TO DEVELOPING MARINE SEDIMENT ENVIRONMENTAL QUALITY CRITERIA
     用AET法建立海洋沉积物环境质量基准
短句来源
  相似匹配句对
     The Difference and Cause Analyses of Freshwater Sediment Quality Guidelines
     淡水沉积物环境质量基准差异分析
短句来源
     AET APPROACH TO DEVELOPING MARINE SEDIMENT ENVIRONMENTAL QUALITY CRITERIA
     用AET法建立海洋沉积物环境质量基准
短句来源
     Review of Approaches for Deriving Sediment Quality Guidelines
     水体沉积物环境质量基准建立方法研究进展
短句来源
     Study on Aquatic Sediment Quality Criteria for Heavy Metals
     水体沉积物重金属质量基准研究
短句来源
     SOME PROBLEMS ON SEDIMENT QUALITY CRITERIA
     关于水体沉积物质量基准问题
短句来源
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  sediment quality guidelines
The Highlights are placed on the establishment of aquatic sediment quality guidelines, references chemical speciation of heavy metals, heavy metal transport mechanisms in lakes, and high-resolution study of lake borehole cores.
      
Assessment of metal concentrations in lake sediments of southwest Japan based on sediment quality guidelines
      
An evaluation of current methods for developing sediment quality guidelines for 2,3,7,8-tetrachlorodibenzo-p-dioxin
      
There are currently few proposed sediment quality guidelines and no promulgated regulatory criteria for 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in sediments.
      
At present, nineteen proposed sediment quality guidelines for TCDD have been proposed in the U.S.
      
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Developing marine sediment environmental quality criteria is the prerequisite for formulating its environmental quality standard. About 20 years'overseas study has established a series of effective approaches in this field. Each of the approaches has its own advantage and can be supplemental to each other. The Apparent Effects Threshold (AET) method, which is considered as possessing potentialities, is an approach through which comprehensive sediment quality threshold is determined by processing the combination...

Developing marine sediment environmental quality criteria is the prerequisite for formulating its environmental quality standard. About 20 years'overseas study has established a series of effective approaches in this field. Each of the approaches has its own advantage and can be supplemental to each other. The Apparent Effects Threshold (AET) method, which is considered as possessing potentialities, is an approach through which comprehensive sediment quality threshold is determined by processing the combination of large quantity in situ data and laboratory data. The principles used and the techniques and relevant to AET method is introduced and discussed in this paper.

海洋沉积物环境质量基准的建立是制定其质量管理环境标准的前提.国外近20年的研究已逐步建立起一系列有效的沉积物环境质量确定方法.这些方法各有所长,可以互为补充,其中表观效应阈值法(AET法)正在受到重点关注.这种方法结合了现场实际与实验室确认两方面的大量可靠数据,综合判定沉积物的质量阈值,有很大的发展潜力.本文对此方法进行了综合讨论.

Different kinds of freshwater sediment quality guidelines (SQGs) have been developed using a variety of approaches. Comparisons of lower SQGs values, upper SQGs values and the gray zones of different contaminants have been made to find and evaluate the differences among various published SQGs. The results have shown that obvious quantitative differences varied from 2 to 15 times and 4 to 29 times respectively among those lower SQGs values and upper SQGs values, and all SQGs have wide gray zones which heavily...

Different kinds of freshwater sediment quality guidelines (SQGs) have been developed using a variety of approaches. Comparisons of lower SQGs values, upper SQGs values and the gray zones of different contaminants have been made to find and evaluate the differences among various published SQGs. The results have shown that obvious quantitative differences varied from 2 to 15 times and 4 to 29 times respectively among those lower SQGs values and upper SQGs values, and all SQGs have wide gray zones which heavily influence their applicability. The differences mainly due to the complexity of controlling factors associated with the bioavailability of various contaminants, and the uncertainties of SQGs deriving approaches.

对现有淡水沉积物环境质量基准进行了分类比较,通过对各种基准不同污染物的基准低值、基准高值以及灰色区域的对比分析,探讨现有基准间存在的差异以及造成差异的原因.结果表明,现有各基准低值和高值问分别存在2倍到15倍,4倍到29倍的较大差异,各基准均存在较大的灰色区域.造成差异的原因主要是影响污染物生物有效性因素的复杂性,以及基准建立方法的不确定性等.

A variety of approaches have been devised to formulate national and regional sediment quality guidelines(SQGs) by various national and provincial agencies during the past 20 years.Most of these approaches are developed in North America,based directly or indirectly on the biological effects of sediment-associated contaminants,and focus on the protection of benthic organisms.These approaches can be categorized as the theoretically based approaches that attempt to account for the dynamic equilibrium of the contaminant...

A variety of approaches have been devised to formulate national and regional sediment quality guidelines(SQGs) by various national and provincial agencies during the past 20 years.Most of these approaches are developed in North America,based directly or indirectly on the biological effects of sediment-associated contaminants,and focus on the protection of benthic organisms.These approaches can be categorized as the theoretically based approaches that attempt to account for the dynamic equilibrium of the contaminant exiting between sediment solids and interstitial water through equilibrium partitioning(EqP),and approaches based on sediment toxicity test,in situ biological effects survey and biological effect frequency.Each approach has certain advantages and limitations.The major problems with current approaches are the difficulties to establish causal relation and identify the factors and their ability mediating the bioavailability of sediment-associated contaminants.This review indicates that no single approach is likely to support deriving sediment quality guidelines(SQGs) under all circumstances.Standard chemical and biological testing methods should be established to improve the reliability of relevant data,and the integration of different approaches is also important in deriving sediment quality guidelines(SQGs).

近20年来,不同的研究机构和研究者先后提出了多种水体沉积物环境质量基准建立方法,这些方法大多产生于北美地区,都是以底栖动物为保护目标,直接或间接地以污染物的生物效应为依据,可划分为2类:即基于沉积物毒性试验、现场生物效应观察和效应发生频率统计的方法;基于平衡分配理论,污染物在沉积物固相—间隙水相间的分配关系的方法。各种方法都有其适用范围和局限性。目前研究中存在的主要问题是:无法明确污染物—生物效应间的因果关系,难以确定影响污染物生物有效性的因素及其影响程度。因此,至今还没有提出一种可广泛应用的沉积物环境质量基准建立方法。建立统一的沉积物毒性试验、测定标准,提高数据的可靠性,重视不同基准建立方法的结合,将是今后研究的重点和发展方向。

 
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