HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT
Contamination by heavy metals in coastal and marine environments is an increasingly serious threat to both marine ecosystems and humans. The numerous marine cultivation and industrial zones along the coast of Khanh Hoa may influence the heavy metal contamination in the seawater and marine sediments....
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Trường Đại học Đà Lạt
2024
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/256912 https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1300 |
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oai:scholar.dlu.edu.vn:DLU123456789-2569122024-12-29T01:13:07Z HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT Nguyen, Xuan Thuy Nguyen, Nhat Nhu Thuy Le, Hung Phu Le, Trong Dung Dao, Viet Ha Nguyen, Xuan Vy Assessment Ecological risk assessment Heavy metals Khanh Hoa Marine sediment Contamination by heavy metals in coastal and marine environments is an increasingly serious threat to both marine ecosystems and humans. The numerous marine cultivation and industrial zones along the coast of Khanh Hoa may influence the heavy metal contamination in the seawater and marine sediments. In this study, 36 seawater and 36 marine sediment samples were collected along the coast of Khanh Hoa to evaluate the levels of eight heavy metal elements. The results indicated that heavy metal concentrations in the surface seawater at Khanh Hoa were much lower than the national technical regulatory limits. The comprehensive pollution index of the heavy metals averaged less than 1. Therefore, heavy metal pollution in the seawater along the coast of Khanh Hoa is slight. Among the eight heavy metals (Cd, Co, Cu, Cr, Mn, Ni, Pb, and Zn) analyzed in the sediments, Cu concentration in the sediment at Cam Ranh Bay is much higher than the national technical regulatory limit. Ecological risk assessment of the sediments also indicated a possible combined biological effect of Cu, Pb, and Zn at Cam Ranh. Therefore, heavy metals in the marine environment at Khanh Hoa should be monitored yearly. Decision-makers should consider the Cu content in seafood because bioaccumulation of heavy metals may occur in marine organisms. 2024-12-29T00:39:23Z 2024-12-29T00:39:23Z 2024 Article 0866-787X https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/256912 https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1300 10.37569/DalatUniversity.14.3.1300(2024) en Dalat University Journal of Science, Volume 14, Issue 3; p.124-142 application/pdf Trường Đại học Đà Lạt |
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Thư viện Trường Đại học Đà Lạt |
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Thư viện số |
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English |
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Assessment Ecological risk assessment Heavy metals Khanh Hoa Marine sediment |
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Assessment Ecological risk assessment Heavy metals Khanh Hoa Marine sediment Nguyen, Xuan Thuy Nguyen, Nhat Nhu Thuy Le, Hung Phu Le, Trong Dung Dao, Viet Ha Nguyen, Xuan Vy HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| description |
Contamination by heavy metals in coastal and marine environments is an increasingly serious threat to both marine ecosystems and humans. The numerous marine cultivation and industrial zones along the coast of Khanh Hoa may influence the heavy metal contamination in the seawater and marine sediments. In this study, 36 seawater and 36 marine sediment samples were collected along the coast of Khanh Hoa to evaluate the levels of eight heavy metal elements. The results indicated that heavy metal concentrations in the surface seawater at Khanh Hoa were much lower than the national technical regulatory limits. The comprehensive pollution index of the heavy metals averaged less than 1. Therefore, heavy metal pollution in the seawater along the coast of Khanh Hoa is slight. Among the eight heavy metals (Cd, Co, Cu, Cr, Mn, Ni, Pb, and Zn) analyzed in the sediments, Cu concentration in the sediment at Cam Ranh Bay is much higher than the national technical regulatory limit. Ecological risk assessment of the sediments also indicated a possible combined biological effect of Cu, Pb, and Zn at Cam Ranh. Therefore, heavy metals in the marine environment at Khanh Hoa should be monitored yearly. Decision-makers should consider the Cu content in seafood because bioaccumulation of heavy metals may occur in marine organisms. |
| format |
Article |
| author |
Nguyen, Xuan Thuy Nguyen, Nhat Nhu Thuy Le, Hung Phu Le, Trong Dung Dao, Viet Ha Nguyen, Xuan Vy |
| author_facet |
Nguyen, Xuan Thuy Nguyen, Nhat Nhu Thuy Le, Hung Phu Le, Trong Dung Dao, Viet Ha Nguyen, Xuan Vy |
| author_sort |
Nguyen, Xuan Thuy |
| title |
HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| title_short |
HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| title_full |
HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| title_fullStr |
HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| title_full_unstemmed |
HEAVY METALS IN SURFACE SEAWATER AND SEDIMENT FROM THE COAST OF KHANH HOA PROVINCE: LEVELS AND ECOLOGICAL RISK ASSESSMENT |
| title_sort |
heavy metals in surface seawater and sediment from the coast of khanh hoa province: levels and ecological risk assessment |
| publisher |
Trường Đại học Đà Lạt |
| publishDate |
2024 |
| url |
https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/256912 https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1300 |
| _version_ |
1819777578389471232 |