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Historical evolutions of metal contamination in the Guangdong-Hong Kong-Macao Greater Bay Area: A risk assessment based on the fuzzy comprehensive assessment in the Daya Bay
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Baoxiao Qu1, 2, 3, 4, Jinming Song1, 2, 3, 4, *, Huamao Yuan1, 2, 3, 4
Haiyang Xuebao | 2020, 42(10) : 59 - 69
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Haiyang Xuebao | 2020, 42(10): 59-69
• Article •
Historical evolutions of metal contamination in the Guangdong-Hong Kong-Macao Greater Bay Area: A risk assessment based on the fuzzy comprehensive assessment in the Daya Bay
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Baoxiao Qu1, 2, 3, 4, Jinming Song1, 2, 3, 4, *, Huamao Yuan1, 2, 3, 4
Affiliations
  • 1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  • 2 Marine Ecology and Environmental Sciences Laboratory, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
  • 3 University of Chinese Academy of Sciences, Beijing 100049, China
  • 4 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
Published: 2020-10-25 doi: 10.3969/j.issn.0253-4193.2020.10.006
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The metal contents in the core sediments collected from the Daya Bay, a typical marine environment in the Guangdong-Hong Kong-Macao Greater Bay Area were measured in this study. National standard for marine sediment quality and fuzzy comprehensive assessment were applied to evaluate the historical evolution of the sediment quality in the past one hundred years. Our results indicate that the metal contamination in the bay experienced three major stages: (1) Before 1980s, the concentrations of most metals were low and the sediment quality fell into the category of class I. Accordingly, the metal risk was low in this period. Cr contributed most and Cd contributed least to the risk, respectively. (2) Between 1980 and 2000, the metal contents were significantly higher than the background values, suggesting that there was a sharp increase of metal input. The category of sediment quality fell down to class II and class III. However, the sediments in the margin areas of the Daya Bay were only slightly affected and still belonged to class I quality. Cu acted as a major metal pollutant instead of Cr in this period. (3) After the year of 2000, the metal levels and the metal risk decreased sharply. The sediment quality recovered back to class I and Cr contributed most to the risk at the time.

Guangdong-Hong Kong-Macao Greater Bay Area  /  Daya Bay  /  sediment  /  heavy metals  /  pollution  /  fuzzy comprehensive assessment
Baoxiao Qu, Jinming Song, Huamao Yuan. Historical evolutions of metal contamination in the Guangdong-Hong Kong-Macao Greater Bay Area: A risk assessment based on the fuzzy comprehensive assessment in the Daya Bay[J]. Haiyang Xuebao, 2020 , 42 (10) : 59 -69 . DOI: 10.3969/j.issn.0253-4193.2020.10.006
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.10.006
  • Receive Date：2019-07-05
  • Online Date：2026-03-27
  • Published：2020-10-25
Article Data
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History
  • Received：2019-07-05
  • Revised：2019-09-17
Funding
Affiliations
    1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
    2 Marine Ecology and Environmental Sciences Laboratory, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
    3 University of Chinese Academy of Sciences, Beijing 100049, China
    4 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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