USING INDEX FOR ASSESSMENT OF WATER QUALITY AND CLASSIFICATION OF EUTROPHICATION LEVELS IN THE QUANG NINH - HAI PHONG COASTAL AREA
Author affiliations
DOI:
https://doi.org/10.15625/1859-3097/17/4/8141Keywords:
Marine environment, water quality index, eutrophication.Abstract
With the fast economic growth and the loose management of pollutants discharged into the sea, the Quang Ninh - Hai Phong coastal water faces the risk of contamination of toxic subtances; and the eutrophication can occur. Therefore, coastal water quality was monitored at Tra Co, Cua Luc and Do Son in 2015. The results showed that sea water had the higher concentration of nitrate and 4.4’DDD compared to limit values. RQ coefficient of coastal areas was medium (0.25 < 0.562 < 0.75), hence “environmental safety”. According to the SWQI index, the water quality in three stations was good and not polluted. In terms of eutrophication level classification according to OECD (1982), the water body of all stations was mesotrophic. According to classification by TRIX index, only water body of Do Son station was in a state of eutrophication, that of the remaining stations was mesotrophic.Downloads
Metrics
References
Rodhe W, 1969. Crystallization of eutrophication concepts in Northern Europe. In: Eutrophication: Causes, consequences and correctives, pp.50-64. National Academy of Sciences, Washington, DC.
Hooper F.F, 1969. Eutrophication indices and their relation to other indices of ecosystem change. In: Eutrophication: Causes, consequences and correctives, pp. 225-235. National Academy of Sciences, Washington, DC.
Vollenweider R.A., Marchetti R. and Viviani R. (eds.), 1992. Marine Coastal Eutrophication, Elsevier, London.
Trạm Quan trắc Môi trường biển ven bờ miền Bắc, 2015. Báo cáo Kết quả quan trắc
môi trường biển năm 2015, Lưu trữ tại Cục Môi trường, Bộ Tài nguyên và Môi trường, Hà Nội
Tổng cục môi trường, cục kiểm soát ô nhiễm, 2010. Xây dựng bộ tiêu chí khoanh vùng kiểm soát ô nhiễm môi trường nước biển ven bờ, tr.21.
Lưu Văn Diệu, Trần Đức Thạnh, Nguyễn Thị Phương Hoa, 2009. Hiện trạng và xu thế biến đổi môi trường nước khu vực cửa Cấm - Bạch Đằng, Tạp chí Khoa học và Công nghệ biển, Phụ chương 1. Tr. 136 - 153.
Carlson.R, 1977. A trophic state index for lake, Limnology & Oceanology.
Ioannis Primpas. Michael Karydis, 2009. Scaling the trophic index (TRIX) in oligotrophic marine environments, Springer Science + Business Media B.V, 2010.
Giovanardi F. and Vollenweider R.A, 2004. Trophic conditions of marine coastal waters: experience in applying the Trophic Index TRIX to two areas of the Adriatic and Tyrrhenian seas, Journal of
Limnology, 63, 199-218.
Downloads
Published
How to Cite
Issue
Section
