Spatial distribution of trace elements in coastal sediments of Ha Tinh province, Vietnam
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The sediment quality assessment showed that trace element concentrations were lower than the limited values in the sediment quality guideline (QCVN 43:2017/BTNMT). According to the Igeo index, the sediments were not polluted by Cu, Pb, Zn, Cr, Fe, and As but were likely polluted by Hg and Mn in some sampling sites. Therefore, it is necessary to invest the future studies to assess the Hg and Mn concentration levels in these sites to protect the marine environment.
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Spatial distribution of trace elements in coastal sediments of Ha Tinh province, Vietnam Vietnam Journal of Marine Science and Technology 2023, 23(2) 113–124 Vietnam Academy of Science and Technology Vietnam Journal of Marine Science and Technology journal homepage: vjs.ac.vn/index.php/jmstSpatial distribution of trace elements in coastal sedimentsof Ha Tinh province, VietnamPham Van Lam1, Luu Viet Dung2,3, Nguyen Tai Tue2,3,*, Tran Dang Quy2,3,Mai Trong Nhuan2, Nguyen Duc Tam4, Vo Minh Canh41 Vietnam Administration of Seas and Islands, Hanoi, Vietnam2 VNU Key Laboratory of Geoenvironment and Climate change Response, VNU University ofScience, Vietnam National University, Hanoi, Vietnam3 Faculty of Geology, VNU University of Science, Vietnam National University, Hanoi, Vietnam4 VNU School of Interdisciplinary Studies, Vietnam National University, Hanoi, VietnamReceived: 5 October 2022; Accepted: 6 January 2023ABSTRACTSediment compositions and trace element (Cu, Pb, Zn, Cr, Fe, Mn, As, and Hg) concentrations wereanalyzed to assess the sediment quality and the factors affecting the trace elements’ concentration in Ha Tinhprovince’s coastal sediments. Results revealed that the concentration of trace elements in the coastalsediments was generally lower than in other coastal areas in Vietnam. The significantly positive correlationof the fine sediment composition with Cu, Pb, Zn, Cr, and Fe indicated that the silt and clay sediments couldabsorb these trace elements. The highly positive correlation among Cu, Pb, Zn, Cr, and Fe suggested that thetrace elements likely originated from similar sources. The sediment quality assessment showed that traceelement concentrations were lower than the limited values in the sediment quality guideline (QCVN43:2017/BTNMT). According to the Igeo index, the sediments were not polluted by Cu, Pb, Zn, Cr, Fe, andAs but were likely polluted by Hg and Mn in some sampling sites. Therefore, it is necessary to invest thefuture studies to assess the Hg and Mn concentration levels in these sites to protect the marine environment.Keywords: Trace element, sediment, marine environment, Ha Tinh; Vietnam.* Corresponding author at: VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam. E-mail addresses:tuenguyentai@gmail.com, tuenguyentai@vnu.edu.vnhttps://doi.org/10.15625/1859-3097/17558ISSN 1859-3097; e-ISSN 2815-5904/© 2023 Vietnam Academy of Science and Technology (VAST) 113 Pham Van Lam et al./Vietnam Journal of Marine Science and Technology 2023, 23(2) 113–124INTRODUCTION Study area Sediments in the coastal area act as sinks The coastal area of Ha Tinh province isfor various organic and inorganic pollutants examined according to the Decree No.transported by the river systems, falling out 40/2014/ND-CP of the Vietnam Government tofrom the atmosphere and released from human implement the articles of the Law on Naturalactivities along the coast. Industry, Resources and Environment of Sea and Islandsurbanization, tourism, and maritime [6, 7]. According to that, the coastal area of Hadevelopment have rapidly released pollutants Tinh province has internal and outer boundaries.into the marine environment, including trace The lowest tidal water lines examines in 18.6elements (TEs) [1]. The TEs such as Cu, Pb, years, and the outer boundary is extended fromZn, Cr, Fe, Mn, As, and Hg in marine the lowest tidal water line to a distance of sixsediments can be originated from natural or nautical miles. The shoreline of the study areaanthropogenic sources such as the lithology of has a total of 137 km in length, with the mainthe area and industrial and maritime activities. direction of northwest-southeast. The shorelineThe TEs can be released from the marine in the north from the Nghi Xuan district to thesediments into the seawater through the Cam Xuyen district has some main estuaries,disturbance processes caused by waves, tidal consisting of Hoi Estuary, Sot Estuary, andcurrents, and benthic activities. The high TE Nhuong Estuary. Curves and steep slopesconcentrations in marine sediments will cause characterize the southern shoreline and havenegative impacts on the benthos and marine headlands such as Than Lan Cape and Ron Capeecosystems [2]. TEs such as Hg, As, Pb, Cr, (Figure 1). The depth of the study area rangedMn, Cu, and Zn tend to accumulate and impact from 0–40 m, being shallower in the northernnegatively marine organisms’ growth [ ...
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Spatial distribution of trace elements in coastal sediments of Ha Tinh province, Vietnam Vietnam Journal of Marine Science and Technology 2023, 23(2) 113–124 Vietnam Academy of Science and Technology Vietnam Journal of Marine Science and Technology journal homepage: vjs.ac.vn/index.php/jmstSpatial distribution of trace elements in coastal sedimentsof Ha Tinh province, VietnamPham Van Lam1, Luu Viet Dung2,3, Nguyen Tai Tue2,3,*, Tran Dang Quy2,3,Mai Trong Nhuan2, Nguyen Duc Tam4, Vo Minh Canh41 Vietnam Administration of Seas and Islands, Hanoi, Vietnam2 VNU Key Laboratory of Geoenvironment and Climate change Response, VNU University ofScience, Vietnam National University, Hanoi, Vietnam3 Faculty of Geology, VNU University of Science, Vietnam National University, Hanoi, Vietnam4 VNU School of Interdisciplinary Studies, Vietnam National University, Hanoi, VietnamReceived: 5 October 2022; Accepted: 6 January 2023ABSTRACTSediment compositions and trace element (Cu, Pb, Zn, Cr, Fe, Mn, As, and Hg) concentrations wereanalyzed to assess the sediment quality and the factors affecting the trace elements’ concentration in Ha Tinhprovince’s coastal sediments. Results revealed that the concentration of trace elements in the coastalsediments was generally lower than in other coastal areas in Vietnam. The significantly positive correlationof the fine sediment composition with Cu, Pb, Zn, Cr, and Fe indicated that the silt and clay sediments couldabsorb these trace elements. The highly positive correlation among Cu, Pb, Zn, Cr, and Fe suggested that thetrace elements likely originated from similar sources. The sediment quality assessment showed that traceelement concentrations were lower than the limited values in the sediment quality guideline (QCVN43:2017/BTNMT). According to the Igeo index, the sediments were not polluted by Cu, Pb, Zn, Cr, Fe, andAs but were likely polluted by Hg and Mn in some sampling sites. Therefore, it is necessary to invest thefuture studies to assess the Hg and Mn concentration levels in these sites to protect the marine environment.Keywords: Trace element, sediment, marine environment, Ha Tinh; Vietnam.* Corresponding author at: VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam. E-mail addresses:tuenguyentai@gmail.com, tuenguyentai@vnu.edu.vnhttps://doi.org/10.15625/1859-3097/17558ISSN 1859-3097; e-ISSN 2815-5904/© 2023 Vietnam Academy of Science and Technology (VAST) 113 Pham Van Lam et al./Vietnam Journal of Marine Science and Technology 2023, 23(2) 113–124INTRODUCTION Study area Sediments in the coastal area act as sinks The coastal area of Ha Tinh province isfor various organic and inorganic pollutants examined according to the Decree No.transported by the river systems, falling out 40/2014/ND-CP of the Vietnam Government tofrom the atmosphere and released from human implement the articles of the Law on Naturalactivities along the coast. Industry, Resources and Environment of Sea and Islandsurbanization, tourism, and maritime [6, 7]. According to that, the coastal area of Hadevelopment have rapidly released pollutants Tinh province has internal and outer boundaries.into the marine environment, including trace The lowest tidal water lines examines in 18.6elements (TEs) [1]. The TEs such as Cu, Pb, years, and the outer boundary is extended fromZn, Cr, Fe, Mn, As, and Hg in marine the lowest tidal water line to a distance of sixsediments can be originated from natural or nautical miles. The shoreline of the study areaanthropogenic sources such as the lithology of has a total of 137 km in length, with the mainthe area and industrial and maritime activities. direction of northwest-southeast. The shorelineThe TEs can be released from the marine in the north from the Nghi Xuan district to thesediments into the seawater through the Cam Xuyen district has some main estuaries,disturbance processes caused by waves, tidal consisting of Hoi Estuary, Sot Estuary, andcurrents, and benthic activities. The high TE Nhuong Estuary. Curves and steep slopesconcentrations in marine sediments will cause characterize the southern shoreline and havenegative impacts on the benthos and marine headlands such as Than Lan Cape and Ron Capeecosystems [2]. TEs such as Hg, As, Pb, Cr, (Figure 1). The depth of the study area rangedMn, Cu, and Zn tend to accumulate and impact from 0–40 m, being shallower in the northernnegatively marine organisms’ growth [ ...
Tìm kiếm theo từ khóa liên quan:
Trace element Marine environment Sediment quality guideline Sediment compositions Ha Tinh province’s Cam Xuyen districtGợi ý tài liệu liên quan:
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