| 钦州湾东部近岸海域秋季水质模糊综合评价 |
| Fuzzy Comprehensive Evaluation on the Seawater Quality of the Coastal Waters of the Eastern Qinzhou Bay in Autumn |
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| DOI： |
| 中文关键词: 钦州湾 水质 模糊综合评价 |
| 英文关键词:Qinzhou Bay water quality fuzzy comprehensive evaluation |
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| 中文摘要: |
| 基于2011年秋季钦州湾东部近岸海域的水质调查数据，利用单因子标准指数法及模糊综合评价模式对钦州湾东部近岸海域海水水质现状进行综合评价。结果表明：钦州湾东部近岸海域秋季海水中DO，COD，BOD5，PO4-P，DIN，石油类，Cu，Pb，Zn，Cd，Cr，As和Hg的平均浓度分别为：6.34 mg/L, 1.10 mg/L, 0.74 mg/L, 0.02 mg/L, 0.26 mg/L, 0.023 mg/L, 2.2 μg/L, 1.1 μg/L, 4 μg/L, 0.14 μg/L, 0.2 μg/L, 0.68 μg/L, 0.036 μg/L。该海域海水中DO，COD，BOD5，石油类，Cu，Pb，Zn，Cd，Cr，As和Hg的平均浓度均符合国家一类海水水质标准，PO4-P和DIN的平均浓度超出了一类海水水质标准。以单因子标准指数法进行评价，钦州湾东部近岸海域水质级别为II级。以模糊综合评价模式进行评价，钦州湾东部近岸海域水质级别为I级。PO4-P和DIN是钦州湾东部近岸海域秋季海水中的主要污染物。 |
| 英文摘要: |
| Based on the survey data of the seawater quality of the coastal waters of the eastern Qinzhou Bay in the autumn of 2011, the seawater quality is comprehensively assessed by the single factor standard index method and fuzzy comprehensive evaluation model. The results show that the concentration of DO, COD, BOD5, PO4-P, DIN, petroleum, Cu, Pb, Zn, Cd, Cr, As and Hg in seawater averages 6.34 mg/L, 1.10 mg/L, 0.74 mg/L, 0.02 mg/L, 0.26 mg/L, 0.023 mg/L, 2.2 μg/L, 1.1 μg/L, 4 μg/L, 0.14 μg/L, 0.2 μg/L, 0.68 μg/L and 0.036 μg/L, respectively. Only the mean concentrations of PO4-P and DIN exceed the National Seawater Quality Standard of the first category. Assessing by the single factor standard index method and fuzzy comprehensive evaluation model, the seawater quality of the eastern Qinzhou Bay is classified as II and I level, respectively. Therefore, the main pollutants in the eastern Qinzhou Bay in autumn are PO4-P and DIN. |
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