《海水水质标准(GB 3097—1997)》定值的合理性浅析——以铅和甲基对硫磷为例
Rationality Analysis of the Existing Marine Water Quality Standard (GB 3097-1997): A Case Study on Lead and Methyl-Parathion
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摘要: 基于物种敏感度分布曲线法,推导了铅和甲基对硫磷的海水水质基准低值和高值,并与《海水水质标准(GB 3097-1997)》中铅和甲基对硫磷的相关标准限值进行了比较,结果表明目前尚缺乏充分的科学证据说明我国现行的海水水质标准可以为我国海洋环境中大多数水生生物提供适当的保护,不同污染物的标准定值存在着一定程度的"欠保护"和"过保护"的问题。此外,结合我国近岸海水水质监测资料,在剖析了海水水质标准定值的合理性的基础上,对我国今后的海水水质基准和标准的研究进行了展望,给出了相应的对策和建议。Abstract: The high marine water quality criterion (HSWC) and low marine water quality criterion (LSWC) of lead and methyl-parathion derived by species sensitivity distribution (SSD) method were analyzed and compared with their limit values of marine water quality standards (GB 3097-1997). Results indicated that the existing marine water quality standards in China cannot provide proper protection for the most of marine organisms due to the lack of adequate scientific evidence, and there was a problem of over-protection or under-protection for marine organisms by different standards of pollutants. Combined with the water quality monitoring data of Chinese coast, the rationality of seawater quality standard (GB 3097-1997) was investigated. Based on these, the countermeasures and suggestions on the development of Chinese marine water criteria and standards were proposed in this study.
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Key words:
- lead /
- methyl-parathion /
- marine organism /
- marine water quality standards /
- marine water quality criteria /
- SSD
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