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Assessment of nutrient and heavy metal contamination in the seawater and sediment of Yalujiang Estuary
Li, Hongjun; Lin, Lin; Ye, Sheng; Li, Hongbo; Fan, Jingfeng
2017-04-15
Source PublicationMARINE POLLUTION BULLETIN
Volume117Issue:1Pages:499-506
AbstractYalujiang River is a famous border river between China and North Korea. In this study, 22 sample sites (seawater and sediments) were investigated to determine the concentrations of nutrients (dissolved inorganic nitrogen and soluble reactive phosphorus) and trace elements (Hg, As, Pb, Cu, Cd, Cr, and Zn) during the flood season (August). Generally, the concentration of nutrients were higher in the entrance of the estuary than that in the downstream region and the trophic index ranged from moderate to high production, indicating a potential eutrophication risk. With the exception of Cd, the mean concentrations of most metals attained the first level of seawater quality. Sediment pollution assessment was undertaken using contamination factor (CF) and geoaccumulation index (I-geo). The CF values of the seven trace elements were in the following order: Cd > Hg > Pb > As > Cu > Zn > Cr. Both CF and I-geo values indicated the elevated Cd and Hg concentrations in the region. Cluster analysis indicated that the sources of Cu, Cd, Cr, and Zn were mainly derived from copper mine and coastal industrial effluents, whereas Pb, Hg, and As were mainly from vehicle emissions and oil combustion. This study could provide a basis for the sustainable management of the marine ecosystem in this region. (C) 2017 Elsevier Ltd. All rights reserved.
Department水污染控制实验室
KeywordYalujiang Estuary Nutrient Heavy Metal Seawater Sediment
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/39567
Collection水污染控制实验室
Recommended Citation
GB/T 7714
Li, Hongjun,Lin, Lin,Ye, Sheng,et al. Assessment of nutrient and heavy metal contamination in the seawater and sediment of Yalujiang Estuary[J]. MARINE POLLUTION BULLETIN,2017,117(1):499-506.
APA Li, Hongjun,Lin, Lin,Ye, Sheng,Li, Hongbo,&Fan, Jingfeng.(2017).Assessment of nutrient and heavy metal contamination in the seawater and sediment of Yalujiang Estuary.MARINE POLLUTION BULLETIN,117(1),499-506.
MLA Li, Hongjun,et al."Assessment of nutrient and heavy metal contamination in the seawater and sediment of Yalujiang Estuary".MARINE POLLUTION BULLETIN 117.1(2017):499-506.
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