Seasonal and Spatial Variation of DO and BOD for Assessment of the Water Quality of Brahmaputra River

2020 ◽  
pp. 473-483
Author(s):  
Siddhant Dash ◽  
Smitom Borah ◽  
Kunwar Raghvendra Singh ◽  
Ajay S. Kalamdhad
Keyword(s):  
Water Quality ◽  
Spatial Variation ◽  
Brahmaputra River

An Investigation on Sudden Change in Water Quality of Brahmaputra River Using Remote Sensing and GIS

2020 ◽  
Vol 43 (7) ◽  
pp. 619-623
Author(s):  
Thota Sivasankar ◽  
Suranjana B. Borah ◽  
Ranjit Das ◽  
P. L. N. Raju
Keyword(s):  
Remote Sensing ◽  
Water Quality ◽  
Sudden Change ◽  
Remote Sensing And Gis ◽  
Brahmaputra River

Seasonal changes and spatial variation in the water quality of a eutrophic tropical reservoir determined by the inflowing river

2011 ◽  
Vol 27 (4) ◽  
pp. 343-354 ◽  
Author(s):  
Francisco Gerson Araújo ◽  
Márcia Cristina Costa de Azevedo ◽  
Maria das Neves Lima Ferreira
Keyword(s):  
Water Quality ◽  
Spatial Variation ◽  
Seasonal Changes ◽  
Tropical Reservoir

scholarly journals Seasonal Variations in Water Quality of the Ganges and Brahmaputra River, Bangladesh

2013 ◽  
Vol 2 ◽  
pp. 71-82 ◽  
Author(s):  
Shafi M Tareq ◽  
MS Rahaman ◽  
SY Rikta ◽  
SM Nazrul Islam ◽  
Mahfuza S Sultana
Keyword(s):  
Water Quality ◽  
Seasonal Variations ◽  
Brahmaputra River ◽  
The Ganges

Jahangirnagar University Environmental Bulletin, Vol.2, 71-82, 2013 DOI: http://dx.doi.org/10.3329/jueb.v2i0.16332

scholarly journals Assessment of spatial variation in water quality of Doodhganga stream in Kashmir Himalaya

2020 ◽  
Vol 8 (2) ◽  
pp. 1075-1081
Author(s):  
Shakeel A Dar ◽  
Farooq A Lone ◽  
Javeed IA Bhat ◽  
Shakeel A Mir ◽  
Amjad M Husaini ◽  
...  
Keyword(s):  
Water Quality ◽  
Spatial Variation ◽  
Kashmir Himalaya

scholarly journals Assessment of Spatial Variation in River Water Quality of the Baiyangdian Basin (China) during Environmental Water Release Period of Upstream Reservoirs

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 688
Author(s):  
Ling Zhou ◽  
Wenchao Sun ◽  
Quan Han ◽  
Haiyang Chen ◽  
He Chen ◽  
...  
Keyword(s):  
Water Quality ◽  
Spatial Variation ◽  
Total Nitrogen ◽  
Environmental Water ◽  
Urban Region ◽  
Lake Ecosystem ◽  
Water Release ◽  
Baiyangdian Lake ◽  
Pollutant Concentrations

Baiyangdian Lake, the largest freshwater body in Northern China, is facing water shortage and eutrophication problems that threaten the lake’s ecosystem. Environmental water releases from upstream reservoirs to the lake are important measures to provide the freshwater resources demanded by the lake ecosystem. However, knowledge is limited regarding the influences of such water allocations on the water quality of the upstream rivers that receive the reservoir water and transport it into Baiyangdian Lake. To improve our understanding of possible influences of environmental water releases from upstream reservoirs, the spatial variation of water quality in rivers upstream of the lake during environmental water release periods from reservoirs was explored in this study. Water samples were collected along the two routes of water allocation: the WangKuai reservoir route (WKR) and the XiDaYang reservoir route (XDYR) and water quality parameters related to organic pollutants, nitrogen and phosphorus were analyzed. In the WKR, the pollutant concentrations generally increased from upstream to downstream. Chemical oxygen demand, total nitrogen, and total phosphorous at the sampling site closest to Baiyangdian Lake could not meet the water quality target of the water function zone. For the XDYR, pollutant concentrations peaked downstream of the major urban region of Baoding city and then decreased or remained at a similar level further downstream and only the total nitrogen concentration was worse than the target. The dissimilarities in spatial variation patterns of water quality may be caused by the different spatial distribution of wastewater treatment plants in the two routes.

scholarly journals Spatial variation of basin supply as a factor of water quality in a shallow, flow-through lake

2010 ◽  
Vol 10 (3-4) ◽  
pp. 127-132 ◽  
Author(s):  
Beata Ferencz ◽  
Jarosław Dawidek
Keyword(s):  
Water Quality ◽  
Spatial Variation ◽  
Lake Water ◽  
Warm Season ◽  
Cold Season ◽  
Shallow Flow ◽  
Matter Transport ◽  
Wide Range ◽  
Flow Through

Spatial variation of basin supply as a factor of water quality in a shallow, flow-through lake Lake Syczyńskie is a water body that represents a group of the smallest Łęczna-Włodawa Lakes. The lake is supplied with waters from the four streams, while the outlet from the lake is directed into the Świnka River. The residence time of water is very short in Lake Syczyńskie. A role and variation of water supply from the catchment area were calculated using the mean seasonal loads transported from lakes sub-basins. A range of ionic migration into the basin of the lake was presented by means of daily and five-day radiuses. Among all inflows, C2 and C4 streams that drained Chełm Hills structure, were the most stable ones. The C3 stream that drained lake vicinity, was less important in shaping the quality of the lake water, while stream C1 was the one with a wide range of seasonal loads inconstancy. The highest fluviodynamic and matter transport occurred during the cold season. However, during the warm season in-lake processes were significant in terms of shaping the quality of lake water.

scholarly journals Investigation of water quality from the Brahmaputra river in Sherpur district

2016 ◽  
Vol 28 (1) ◽  
pp. 35-41 ◽  
Author(s):  
MS Islam ◽  
T Datta ◽  
IJ Ema ◽  
MH Kabir ◽  
NT Meghla
Keyword(s):  
Water Quality ◽  
River Water ◽  
Anthropogenic Activities ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Mean Value ◽  
Brahmaputra River ◽  
Physico Chemical ◽  
The Status

The study was conducted to determine the status of physico-chemical parameters of the Brahmaputra river water in Sherpur district and also to assess the monthly variation of the river water. To perform the study the samples were collected from five different stations during the period of December 2013 to May 2014. Various water quality parameters such as transparency, temperature, electrical conductivity (EC), total dissolved solids (TDS), pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), hardness and alkalinity were examined. The study revealed that a slightly variation in water quality at different stations of the river. The mean value of transparency (42.21 cm), temperature (23.38oC), EC (351.12 ?s/cm), TDS (178.54 mg/l), pH (7.75), DO (4.47 mg/l), BOD (1.02 mg/l), hardness (82.36 mg/l) and alkalinity (98.63 mg/l) showed that the present status of the Brahmaputra river water is suitable for all aquatic lives, domestic and agricultural uses. Although the overall status of the river water quality is suitable, degradation was detected in few points which might be due to anthropogenic activities, especially the direct discharge of domestic effluents into river. Thus, necessary initiatives should be taken against such anthropogenic activities to maintain the overall water quality of the Brahmaputra river for its sustainable use.Bangladesh J. Sci. Res. 28(1): 35-41, June-2015

scholarly journals Assessment of water quality index: a case study in Old Brahmaputra river of Mymensingh District in Bangladesh

2016 ◽  
Vol 27 (3) ◽  
pp. 355-361 ◽  
Author(s):  
Z Muyen ◽  
M Rashedujjaman ◽  
MS Rahman
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Chemical Parameters ◽  
Brahmaputra River ◽  
Physico Chemical

This study was conducted to measure the water quality parameters of old Brahmaputra River in Mymensingh district near Bangladesh Agricultural University to determine the water quality index (WQI) of the River Brahmaputra. Water quality focuses on various aspects of the physico-chemical parameters by which the quality of the water body can easily be elucidated. Three different locations were selected within the study area. Water samples were collected in April 2015 from these three locations along the river and analyzed for these physico-chemical parameters: pH, Dissolve Oxygen (DO), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammoniacal Nitrate (AN), Suspended Solids (SS). The values of these parameters were used to calculate the WQI based on the equation derived by the Department of Environment (DoE) Malaysia. The WQI was found to be 57.58, which falls in the class IV category and means that the water is “very polluted” and as of April 2015, this water is not suitable for public water supply, not suitable for recreational purpose, has limited potential for aquaculture but is suitable for irrigation.Progressive Agriculture 27 (3): 355-361, 2016

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