Spatial distribution and potential ecological risk assessment of heavy metals in sediments of Yalu River estuary wetland mudflat.

doi:10.13287/j.1001-9332.201609.005

Abstract

Abstract: Kriging interpolation analysis was conducted with ArcGIS to find out the distribution characteristics of heavy metals concentrations in the surface sediments of the coastal wetland mudflat on the Yalu River estuary, environmental risk index and Hakanson potential ecological risk index were used to assess their extents of pollution in this area.The concentrations of heavy metals in the surface sediments of the study area were at a relatively high level compared with the typical estuarine wetland. The concentration of heavy metals in the east was higher than that in the west, and in the human activity area, the concentration was higher. Cu was found to contribute the most to the pollution status based on environmental risk index method, while Hg and Cd produced the greatest potential ecological harm according to Hankanson Potential ecological risk index method. The average potential ecological risk index (RI) of the Yalu River estuary wetland was 189.30 (ranged from 93.65-507.20), suggesting a moderate ecological risk. However, the potential ecological risk was highest in the east and should be treated as the major heavy metal pollution prevention area in the future.

ZHANG Chun-peng, LI Fu-xiang. Spatial distribution and potential ecological risk assessment of heavy metals in sediments of Yalu River estuary wetland mudflat.[J]. Chinese Journal of Applied Ecology, 2016, 27(9): 2884-2890.

References

[1] Ye S-Y (叶思源), Ding X-G (丁喜桂), Yuan H-M (袁红明), et al. Coastal wetland protection in China: Geological issues and research tasks. Marine Geology Frontiers (海洋地质前沿), 2011, 27(2): 1-7 (in Chinese)
[2] Owen RB, Sandhu N. Heavy metal accumulation and anthropogenic impacts. Marine Pollution Bulletin, 2000, 40: 174-180
[3] Ma H-R (马洪瑞), Chen J-F (陈聚法), Cui Y (崔毅), et al. Environmental quality assessment of water body and surface sediment in the sea area of Jiaozhou Bay wetland. Chinese Journal of Applied Ecology (应用生态学报), 2011, 22(10): 2749-2756 (in Chinese)
[4] Ye H-X (叶华香), Zang S-Y (臧淑英), Zhang L-J (张丽娟), et al. Distribution and potential ecological risk assessment of heavy metals in sediments of Zhalong wetland. Environmental Science (环境科学), 2013,34(4): 1333-1339 (in Chinese)
[5] Zhang F (张芬), Yang C-M (杨长明), Pan R-J (潘睿捷). Pollution characteristics and ecological risk assessment of heavy metals in surface sediments of Qingshan Reservoir in Lin’an City, Zhejiang Province of East China. Chinese Journal of Applied Ecology (应用生态学报), 2013, 24(9): 2625-2630 (in Chinese)
[6] Wang J-J (王俊杰), Huang Y (黄阳), Huang X (黄雪), et al.Ecological risk assessment of heavy metals in surface sediments in Yancheng coastal mudflat. Marine Science Bulletin (海洋通报), 2015, 34(3): 353-360 (in Chinese)
[7] Xu Y-X (徐映雪), Shao J-L (邵景力), Yang W-F (杨文丰), et al. Research on classification and change of seaside wetland around Yalujing river estuary based on RS and GIS. Geoscience (现代地质), 2006, 20(3): 500-504 (in Chinese)
[8] Zhang C-P (张春鹏), Liu J-W (刘敬伟), Zheng C-D (郑存德), et al. Analyzing structure changes of wetland around Yalu-river estuary by remote sensing. Transactions of Oceanology and Limnology (海洋湖沼通报), 2014(4): 160-166 (in Chinese)
[9] Li F-X (李富祥), Wang L (王路), Zheng C-D (郑存德), et al. The analysis of environmental quality conditions according to surface sediment in the Yalu River estuary. Environmental Pollution & Control (环境污染与防治), 2014, 36(2): 37-42 (in Chinese)
[10] Gao J-H (高建华), Li J (李军), Wang Z-Y (王珍岩), et al. Heavy metal distribution and their influence factors in sediments of Yalu River estuary and its adjacent sea area. Geochimica (地球化学), 2008, 37(5): 4391-4398 (in Chinese)
[11] Li F-X (李富祥), Li X-M (李雪铭), Gao J-H (高建华), et al. Analysis of environmental evolution during last hundred years according to vertical sediment in the Yalu River estuary. Environmental Pollution & Control (环境污染与防治), 2012, 34(10): 1-10 (in Chinese)
[12] State Oceanic Administration (国家海洋局). Marine Monitoring Standard (GB/T 17378-5-98). Beijing: China Ocean Press, 1998 (in Chinese)
[13] Li X (李新), Cheng G-D (程国栋), Lu L (卢玲). Comparison of spatial interpolation methods. Advance in Earth Sciences (地球科学进展), 2000, 15(3): 260-265 (in Chinese)
[14] Duan Z-P (段志鹏), Lin J-Q (林进清), Li F (利锋), et al. Research on space distribution features of trace metal in the offshore sediments based on GIS. Marine Environmental Science (海洋环境科学), 2014, 33(2): 262-268 (in Chinese)
[15] State Oceanic Administration (国家海洋局). Marine Sediment Quality (GB 18668-2002). Beijing: China Standards Press, 2002 (in Chinese)
[16] Cheng X (程先), Wang R-L (王瑞霖), Wang J-L (王建力), et al. Potential ecological risks assessment of heavy metals in the reservoir sediment of the western Haihe River basin. Chinese Journal of Applied Ecology (应用生态学报), 2015, 26(5): 1495-1500 (in Chinese)
[17] Gao JH, Gao S, Cheng Y, et al. Formation of turbidity maxima in the Yalu River Estuary. Journal of Coastal Research, 2004, 43(suppl.1): 134-146
[18] Liu L (柳林), Xu S-Y (许世远), Chen Z-L (陈振楼). Distribution characteristics of heavy metals on surfacial sediment at tidal flat in Shanghai. Shanghai Environmental Science (上海环境科学), 2000, 19(7): 309-312 (in Chinese)
[19] Liu Z-J (刘志杰), Li P-Y (李培英), Zhang X-L (张晓龙), et al. Regional distribution and ecological risk evaluation of heavy metals in surface sediments from coastal wetlands of the Yellow River delta. Environmental Science (环境科学), 2012, 33(4): 1182-1188 (in Chinese)
[20] Chu B (楚蓓), Li Q-S (李取生), Cai S-S (蔡莎莎), et al. Appraisal of potential ecological risk of heavy metals in wetland in Pear River estuary. Marine Environmental Science (海洋环境科学), 2008, 27(3): 250-252 (in Chinese)
[21] Zhou X-Y (周秀艳), Li Y-B (李宇斌), Wang E-D (王恩德), et al. Heavy metals pollution and relevant ecological risk evaluation in wetlands of Liaodong gulf area. Environmental Science and Technology (环境科学与技术), 2004, 27(5): 60-62 (in Chinese)
[22] Gan H-Y (甘华阳), Lin J-Q (林进清), Liang K (梁开), et al. Distribution and ecological risk assessment of heavy metals in the surface sediments of the coastal wetland on the Leizhou peninsular. Journal of Tropical Oceanography (热带海洋学报), 2014, 33(3): 79-87 (in Chinese)
[23] Yan M-C (鄢明才), Chi Q-H (迟清华). Chemical Composition of the Crust and Rocks in Eastern China. Beijing: Science Press, 1997 (in Chinese)
[24] Li S-Y (李淑媛), Miao F-M (苗丰民), Liu G-X (刘国贤). The distribution and environmental background values of the heavy metals in the sediment of the north Huanghai Sea. Journal of Tropical Oceanography of Huanghai & Bohai Seas (黄渤海海洋), 1994, 12(3): 20-24 (in Chinese)
[25] Hakanson L. An ecological risk index for aquatic pollution control: A sedimentological approach. Water Research, 1980, 14: 975-1001
[26] He D-J (何东进), Tan Y (谭勇), Liao X-J (廖小娟), et al. Selection and comparison of different me-thods for ecological risk assessment of heavy metals in the sediments of coastal wetlands, the east Fujian. Journal of Fujian College of Forestry (福建林学院学报), 2014, 34(2): 97-103 (in Chinese)