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DOI | 10.1002/ieam.4059 |
Specifying the Dimensions of Aquatic Life Benchmark Values in Clear, Complete, and Justified Problem Formulations | |
Suter, Glenn | |
发表日期 | 2018-09-01 |
ISSN | 1551-3777 |
卷号 | 14期号:5页码:631-638 |
英文摘要 | Nations that develop water quality benchmark values have relied primarily on standard data and methods. However, experience with chemicals such as Se, ammonia, and tributyltin has shown that standard methods do not adequately address some taxa, modes of exposure, and effects. Development of benchmark values that are protective requires an explicit description of the issues, a problem formulation. In particular, the assessment endpoints and other dimensions should be specified for each chemical so that the necessary data will be obtained and appropriate analyses will be performed. Assessment endpoints specify the entity and attribute to be protected. In addition, the level of protection, including the magnitude of effect and the proportion effected, is specified. Magnitude and proportion are included because they are used to calculate the benchmark concentration. If uncertainty is considered in the benchmark, the proportion of the uncertainty distribution that is protected should be specified. Because effects are related to the duration of exposure and time for recovery, temporal dimensions should be specified. Clearly described exposure metrics are also needed because the relevant exposure parameter is not always total aqueous concentration. Finally, the benchmark may be applicable to particular geographic or climatological areas, water chemistries, taxa, or habitat types. Considering and justifying all the dimensions is likely to result in protective and more easily communicated benchmarks. Integr Environ Assess Manag 2018;14:631-638. Published 2018. This article is a US Government work and is in the public domain in the USA. |
英文关键词 | Water quality criteria;Water quality guidelines;Problem formulation;Assessment endpoints;Water quality standard |
语种 | 英语 |
WOS记录号 | WOS:000441882300015 |
来源期刊 | INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/62333 |
作者单位 | US EPA, Natl Ctr Environm Assessment, Cincinnati, OH 45268 USA |
推荐引用方式 GB/T 7714 | Suter, Glenn. Specifying the Dimensions of Aquatic Life Benchmark Values in Clear, Complete, and Justified Problem Formulations[J]. 美国环保署,2018,14(5):631-638. |
APA | Suter, Glenn.(2018).Specifying the Dimensions of Aquatic Life Benchmark Values in Clear, Complete, and Justified Problem Formulations.INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT,14(5),631-638. |
MLA | Suter, Glenn."Specifying the Dimensions of Aquatic Life Benchmark Values in Clear, Complete, and Justified Problem Formulations".INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 14.5(2018):631-638. |
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