ENVIRONMENTAL QUALITY OF SURFACE SEDIMENTS IN THE SOUTH OF NHA TRANG BAY
Author affiliations
DOI:
https://doi.org/10.15625/1859-3097/15/1/4431Keywords:
Organic matters, heavy metals, hydrocarbons, sediments, Nha Trang bay.Abstract
Analyzed results of 11 surface sediment samples collected in June 2012 in the south of Nha Trang bay showed that: The contents of the organic materials and heavy metals in the sediments were considerably various (organic C: 0.12 - 1.46% , organic N: 135.8 - 987.7 µg/g, total P: 44.0 - 551.1 µg/g; Zn: 2.2 - 28.7 µg/g; Cu: 2.6 - 22.2 µg/g, Pb: 2.7 - 28.1 µg/g, Fe: 514 - 17,337 µg/g) and correlated with the rate of mud fraction; Organic carbon and heavy metal contents tended to be higher in areas near Tre and Tam Islands and lower value in off - shore areas; Among studied areas: i) There was no significant difference in hydrocarbon content (from 115 - 188 µg/g); ii). Related to microbiology, coliform density (from 0 - 8,197 MPN/100g) was highest at Mieu and Mot Islands. Generally, the surface sediments in Nha Trang bay, in terms of organic materials and heavy metals, were suitable for the aquatic life. However, there was the lightly increasing trend in organic matters (N and P) from 2007 to 2012.Downloads
Metrics
References
Lê Thị Vinh, Nguyễn Hồng Thu, Dương Trọng Kiểm, Phạm Hữu Tâm, 2005. Hàm lượng các yếu tố dinh dưỡng trong nước vịnh Nha Trang năm 2004. Tạp chí khoa học và Công nghệ biển, 5(Phụ trương 4): 77-82.
Bryan, G. W., 1984. Pollution due to heavy metals and their compounds. Marine ecology, 5(Part 3): 1289-1431.
Hungspreugs, M., Dharmvanij, S., Utoomprookpoom, W., and Windom, H. L., 1991. A comparative study for the trace metals fluxes of the Ban PaKong and the Mae Klong river. In Thailand-IOC workshop report (No. 79, pp. 34-44).
Portmann, J. E., Bernhard, M., Moeller, F., Bellan, G., Stirn, J., Ward, G. S., ... and MacIntyre, A. D., 1975. Manual of methods in aquatic environment research. Rome: FAO.
Lê Thị Vinh, Dương Trọng Kiểm, Nguyễn Hồng Thu, Phạm Hữu Tâm, Phạm Hồng Ngọc, Lê Hùng Phú và Võ Trần Tuấn Linh, 2013. Chất lượng môi trường tại các rạn san hô trong vịnh Nha Trang. Kỷ yếu Hội nghị quốc tế “Biển Đông 2012”, Nha Trang 12-14/9/2012. Nxb. Khoa Học Tự Nhiên và Công nghệ. Tập 2. Tr. 254-262.
Schulz, Horst D., Zabel, Matthias (Eds.), 2008. Marine geochemistry. Elsevier. 574 pp.
Faganeli, J., Malej, A., Pezdic, J., and Malacic, V., 1988. C:N:P ratios and stable c-isotopic ratios as indicators of sources of organic-matter in the gulf of trieste (northern adriatic). Oceanologica Acta, 11(4): 377-382.
Hyland, J., Karakassis, I., Magni, P., Petrov, A., and Shine, J., 2000. Summary report: Results of initial planning meeting of the United Nations Educational, Scientific and Cultural Organization.
Liu, C., Wang, Z. Y., He, Y., and Wei, H., 2003. Water quality and sediment quality of waters near Shanghai sewage outfalls. Journal of China Institute of Water Resources and Hydropower Research, 11, 275-280.
Downloads
Published
How to Cite
Issue
Section
