Bài viết trình bày kết quả khảo sát chất lượng môi trường khu vực biển ven bờ Ninh Thuận. Kết quả phân tích qua hai chuyến khảo sát tháng 7/2013 và tháng 2/2014 cho thấy môi trường nước có hàm lượng ôxy hòa tan (DO) tương đối cao (luôn >5 mg/l). | VNU Journal of Science: Earth and Environmental Sciences, Vol. 35, No. 1 (2019) 27-38 Original article Characteristics of Seawater and Sediment in Coastal Areas of Ninh Thuan Pham Huu Tam* Sub-Institute of Hydro Meteorology and Climate Change (SIHYMECC - IMHEN) 19 Nguyen Thi Minh Khai, 1 District, Ho Chi Minh City, Vietnam Received 26 July 2018 Revised 05 November 2018; Accepted 14 December 2018 Abstract: This paper represents some aspects on the environmental quality of coastal areas in Ninh Thuan province. Results of two surveys (performed in July 2013, and February 2014) showed that in water environment, Dissolved Oxygen– DO values were relatively high (always >5mg/l). Values of Total Suspended Solids - TSS, nutrients amoni, nitrit, nitrat, phosphat, silicat and heavy metals Pb, Hg, As were in the narrow ranges and always were lower than acceptable values for aquatic life protection. In generally, values of nutrients amoni, nitrit, nitrat và phosphat were usually lower in Nha Trang bay but higher in coastal area of Phu Yen. In July 2013, values of TSS, nutrients nitrat, silicat were higher than those in February 2014, while Hg were contrary. In sediment, concentrations of organic Carbon were suitable for benthos. Concentrations of Phosphorus and Nitrogen in samples were not high so it does not affect aquatic life. In generally, the quality of the sediment in Ninh Hai was better than that of the Ninh Phuoc. Concentrations of Phosphorus and Nitrogen in sediment were higher in February 2014. Keywords: Coastal seawater quality, sediment quality, nutrients, heavy metal, south central, Ninh Thuan. * _ * Corresponding author. E-mail address: tamphamhuu@ 27 VNU Journal of Science: Earth and Environmental Sciences, Vol. 35, No. 1 (2019) 27-38 Đặc điểm môi trường nước và trầm tích vùng biển ven bờ Ninh Thuận Phạm Hữu Tâm* Phân viện Khoa học Khí tượng Thủy văn và Biến đổi khí hậu (SIHYMECC), Số 19 .
