tailieunhanh - Water quality of Ba Lat estuary

Ba Lat estuary is the large mouth of the Red river; every year, the Ba Lat estuary receives million cubic meters of water before the water is dissolved in the sea. Therefore, polluted materials in the water from the continent are also transported to the sea through the estuary. However, the volume of the water pouring into the sea varies with the season. In this paper, the water quality at Ba Lat estuary (Red river) was surveyed in July 2017 representing the Southwest wind season (rainy season) and in October 2017 representing the Northeast wind season (dry season). The research results show that the values of chemical parameters of water at Ba Lat estuary changed according to the season: the average temperature of water in the rainy season was higher than in the dry season; average pH in the rainy season ( ± ) was higher than that in the dry season ( ± ). Parameters such as conductivity, salinity, NO3-N, NH3-N, PO4-P, total grease, Fe and Zn in the dry season were – times higher than in the rainy season. Concentration of some nutrition (including NO3-N; NH3-N; PO4-P and SiO3-Si), heavy metals (Fe, Zn), and total grease in the water were high, in which NO3-N ranged from mg/l to mg/l; NH3-N ranged from mg/l to mg/l, to times higher than the standard of Vietnam. PO4-P ranged from mg/l to mg/l, which was 2 to times higher than the standard. SiO3-Si ranged from mg/l to mg/l. Iron concentration in the water was to times higher than the standard and not different between the two seasons. | Water quality of Ba Lat estuary

• Môi trường
• Water quality
• Water quality of Ba Lat estuary
• Ba Lat estuary
• Physio chemical parameters
• Heavy metal
• Total oil and grease
• Water quality index
• Relative water quality index
• Aggregate water quality
• Surface water
• Coastal water
• Surface water quality
• Drinking water quality
• Irrigation water quality
• Livestock water quality
• Transition zones of Bengaluru
• Water quality management
• Zoning water quality
• Surface water quality by WQI index
• Weight value of quality groups
• Water quality assessment
• Physicochemical ones
• Water quality index proposed
• Environmental advances
• River water quality
• Rapidly urbanising megacity
• Sewage water
• COD and BOD
• Sewage water on irrigation water quality
• Manasa Sarovaram
• Physical and chemical parameters
• Water standards
• Clean water
• Monitoring supplied domestic water quality
• Canals on water quality
• Water quality monitoring data
• Collected at the Department of Natural Resources
• Appropriate measures
• Drinking standards
• Transition zones
• Assessment and mapping
• Mapping of irrigation water quality index
• Irrigation water quality index
• Bapatla mandal
• Adjustment of the formula of local surface water quality assessment
• The formula of local surface water quality assessment
• Local surface water quality assessment
• The old WQI formula
• Primary parameters
• Secondary parameters
• Irrigation water quality status
• River yamuna
• Seasonal variations
• Water quality parameters
• Water quality parameters of river Yamuna
• Dissolved oxygen
• Application of water quality index
• Assessment of sea water quality
• The Gulf of Tonkin in 2018
• Wind field
• Wind rose
• Organic matters
• Chemical oxygen demand
• Biochemical oxygen demand
• Organic pollution
• Alga as an indicator
• Water quality in fresh water bodies
• Fresh water bodies
• Fresh water bodies of Mysore
• Groundwater quality assessment
• Soluble Sodium percentage
• Nemerows Pollution Index
• Chau Pha lake
• Public water
• Domestic water
• Earth and environmental sciences
• Benthic community of water quality
• Aassessment of water quality
• uBiological index in RAMSAR
• River pollution
• Water quality monitoring
• Yamuna river by
• GIS based water quality index in Delhi
• Selected parameters
• Ebook The science of water
• Water Treatment Calculation
• The Water Hydraulic
• The Water Chemisty
• The Water Treatmet
• socio economic situation
• the project organization
• implementation methods
• the current situation
• water resources
• water quality facility
• Kien Giang province
• The surface water
• Aquaculture in the region
• Water quality status
• Journal of Science and Technology
• Integrated evaluation model
• Surface water quality a case study
• Biological and radiation characteristics
• Water evaluation model
• Palmer index
• Shannon Weiner index
• Biological index for water