Heavy Metals in Marine Surface Sediments of Daya Bay, Southern China: Spatial Distribution, Sources Apportionment, and Ecological Risk Assessment

被引:8
|
作者
Wang, Huijuan [1 ,2 ]
Fan, Zhengqiu [3 ]
Kuang, Zexing [1 ,2 ]
Yuan, Yuan [3 ]
Liu, Huaxue [2 ]
Huang, Honghui [1 ]
机构
[1] Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab Fishery Ecol & Environm, Guangzhou, Peoples R China
[2] Minist Ecol & Environm, South China Inst Environm Sci, Guangzhou, Peoples R China
[3] Fudan Univ, Dept Environm Sci & Engn, Shanghai, Peoples R China
关键词
heavy metals; marine surface sediments; sources apportionment; ecological risk assessment; daya bay; CONTAMINATION ASSESSMENT; SOURCE IDENTIFICATION; JIAOZHOU BAY; YELLOW SEA; ENRICHMENT; POLLUTION; WATER; RESERVE; SHELF; COAST;
D O I
10.3389/fenvs.2021.755873
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Daya Bay, especially in the northwestern region, which is a nature reserve with larval economic fish and shrimp populations, is no longer an unpolluted marine environment due to the recent increases in anthropogenic activities. This study collected seasonal surface sediment samples from 20 sites in northwestern Daya Bay to evaluate pollution and ecological risks and to identify possible sources and transport pathways of heavy metals (Cd, Pb, Cr, Cu, Zn, Hg, As). The results showed that all the heavy metal concentrations were below the established primary standard criteria, except for concentrations of Cr in spring, as well as Cu and Zn in autumn at several sampling stations, which had excess rates of 35, 4.76, and 4.76%, respectively. The geoaccumulation index (Igeo) values of heavy metals indicated that all sites had unpolluted to moderate pollution levels. In comparison to the samples collected in autumn, those in spring experienced a higher degree of pollution, particularly Cr and As. The ecological risk indices of heavy metals in sediments ranged from 225.86 to 734.20 in spring and from 196.69 to 567.52 in autumn, suggesting that most sites had a moderate ecological risk or a considerable ecological risk, and very few a had high ecological risk. Moreover, ArcGIS10.2 software was used to visualize their spatial distribution, and the results were similar in both spring and autumn. The results of the Pearson correlation analysis and principal component analysis showed that Cu, Hg, and Pb might be affected by anthropogenic activities, and As might be derived from natural sources such as atmospheric inputs. A cluster analysis showed that heavy metals were mainly affected by the negative impacts of human beings on the environment.
引用
收藏
页数:11
相关论文
共 50 条
  • [41] Mobility and ecological risk assessment of heavy metals in surface sediments of Xiamen Bay and its adjacent areas, China
    Changzhou Yan
    Qingzhao Li
    Xian Zhang
    Guoxin Li
    [J]. Environmental Earth Sciences, 2010, 60 : 1469 - 1479
  • [42] Temporal and Spatial Distribution, Ecological Risk Assessment and source Identification of heavy Metals in the Surface Sediments of Lake Taihu Basin, China
    Chang, Wenjie
    Shu, Ruiqi
    Sun, Jieli
    Pang, Yong
    [J]. WATER AIR AND SOIL POLLUTION, 2023, 234 (10):
  • [43] Temporal and Spatial Distribution, Ecological Risk Assessment and source Identification of heavy Metals in the Surface Sediments of Lake Taihu Basin, China
    Wenjie Chang
    Ruiqi Shu
    Jieli Sun
    Yong Pang
    [J]. Water, Air, & Soil Pollution, 2023, 234
  • [44] Effects of anthropogenic activities on the levels of heavy metals in marine surface sediments of the Thessaloniki Bay, Northern Greece: Spatial distribution, sources and contamination assessment
    Christophoridis, C.
    Bourliva, A.
    Evgenakis, E.
    Papadopoulou, L.
    Fytianos, K.
    [J]. MICROCHEMICAL JOURNAL, 2019, 149
  • [45] Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay, South China Sea
    Liu, Jin-Jun
    Ni, Zhi-Xin
    Diao, Zeng-Hui
    Hu, Yong-Xia
    Xu, Xiang-Rong
    [J]. MARINE POLLUTION BULLETIN, 2018, 128 : 132 - 139
  • [46] Anthropogenic influences on the sources and distribution of organic carbon, black carbon, and heavy metals in Daya Bay's surface sediments
    Yang, Yin
    Li, Yilan
    Huang, Chao
    Chen, Fajin
    Chen, Chunqing
    Zhang, Huiling
    Deng, Wenfeng
    Ye, Feng
    [J]. MARINE POLLUTION BULLETIN, 2023, 196
  • [47] Distribution, Sources, and Ecological Risk Evaluation of Heavy Metals in Surface Sediments of Taihu Lake
    Yu, Fu-He
    Wang, Shu
    Qian, Cheng-Yuan
    Jiang, Qiao
    Chen, Tao
    Tang, Yun-Yun
    Tong, Hui
    Wang, Jian-Jun
    Cheng, Xiao-Ying
    [J]. Huanjing Kexue/Environmental Science, 2023, 44 (10): : 5524 - 5535
  • [48] Spatial Spatial distribution and ecological risk assessment of heavy metals in coastal surface sediments in the Hebei Province offshore area, Bohai Sea, China
    Ding, Xigui
    Ye, Siyuan
    Yuan, Hongming
    Krauss, Ken W.
    [J]. MARINE POLLUTION BULLETIN, 2018, 131 : 655 - 661
  • [49] Spatial distribution and risk assessment of heavy metals in sediments of Shuangtaizi estuary, China
    Li, Chen
    Song, Chengwen
    Yin, Yanyan
    Sun, Menghan
    Tao, Ping
    Shao, Mihua
    [J]. MARINE POLLUTION BULLETIN, 2015, 98 (1-2) : 358 - 364
  • [50] The concentration distribution and pollution assessment of heavy metals in surface sediments of the Bohai Bay, China
    Ding, Xigui
    Ye, Siyuan
    Laws, Edward A.
    Mozdzer, Thomas J.
    Yuan, Hongming
    Zhao, Guangming
    Yang, Shixiong
    He, Lei
    Wang, Jin
    [J]. MARINE POLLUTION BULLETIN, 2019, 149