Assessment of coastal water quality of Ninh Binh province

Cao Thi Thu Trang, Nguyen Van Thao, Pham Thịi Kha, Le Van Nam, Nguyen Van Bach, Nguyen Thi Thu Ha
Author affiliations

Authors

  • Cao Thi Thu Trang Institute of Marine Environment and Resources, VAST, Vietnam
  • Nguyen Van Thao Institute of Marine Environment and Resources, VAST, Vietnam
  • Pham Thịi Kha Institute of Marine Environment and Resources, VAST, Vietnam
  • Le Van Nam Institute of Marine Environment and Resources, VAST, Vietnam
  • Nguyen Van Bach Institute of Marine Environment and Resources, VAST, Vietnam
  • Nguyen Thi Thu Ha Institute of Marine Environment and Resources, VAST, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/19/3/12645

Keywords:

Water quality, risk quotient, limitation value, eutrophication.

Abstract

This paper presents the results of investigation on water quality in Ninh Binh coastal area in 2015. The results show that the risk quotient of water quality of the area was 0.34, indicating the water was safe for aquatic life. However, for individual water quality parameter, the coastal water of Ninh Binh was contaminated by TSS, ammonium and arsenic; water faced the risk of deficiency of dissolved oxygen. The remaining water quality parameters (nitrite, phosphate, cyanide, oil and grease, coliform, Cu, Pb, Zn, Cd, Hg and organochlorinated pesticides) are safe for aquatic life. As spatial distribution, the concentration of pollutants in water is lower at depth > 15 m. In the rainy season, the water quality tends to decrease compared to the dry season.

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Published

30-06-2019

How to Cite

Trang, C. T. T., Thao, N. V., Kha, P. T., Nam, L. V., Bach, N. V., & Ha, N. T. T. (2019). Assessment of coastal water quality of Ninh Binh province. Vietnam Journal of Marine Science and Technology, 19(3), 415–426. https://doi.org/10.15625/1859-3097/19/3/12645

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