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Spatial and temporal variations of PAHs in surface sediments of estuarine and coast of CanGio wetland,Vietnam |
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| Authors: | Thuy Hoang Thi Thanh Loan Tu Thi Cam Luu Pham Thanh Van Dong Nguyen Bao Le Duy Phuong Trinh Hong Khanh Nguyen Trong Yen Tran Thi Hoang Huy Do Xuan |
| Institution: | 1.Hochiminh City University of Natural Resources and Environment, 236B LeVanSy Street, TanBinh District,, Hochiminh City, Vietnam ;2.Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam ;3.Institute of Tropical Biology, Vietnam Academy of Science and Technology (VAST), Hochiminh City, Vietnam ;4.University of Science, Vietnam National University Ho Chi Minh City (VNU-HCM), Hochiminh City, Vietnam ;5.Institute for Environment and Resources, Vietnam National University, Hochiminh City, Vietnam ; |
| Abstract: | Surface sediments from estuarine and coast of CanGio wetland (CGW) of Hochiminh City, Vietnam, were investigated to identify the spatial and temporal variations of polycyclic aromatic hydrocarbons (PAHs). The total PAHs showed wide variation but similar to patterns observed (F?=?0.901, p?=?0.46) in LongTau (31?±?77 ng/g dry weight, n?=?13), SoaiRap (53?±?81, n?=?4), ThiVai (60?±?62, n?=?10) estuaries, and coastal areas (112?±?211, n?=?9). A decreasing trend in the wet season (F?=?8.8, p?=?0.01) reflected that inland sources such as wastewater discharged and atmospherically transported contaminants contributed to PAHs in sediments. The risk posed by the PAHs in the coastal and estuarine areas of CGW is still negligible. The present study provides baseline data, which can be used for regular monitoring and future strategy of environmental protection for the study area. |
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