Assessment of Organic Pollutants of Water Samples in River Getsi and River Gwagwarwa in Kano State Nigeria
Issue:
Volume 3, Issue 1, February 2014
Pages:
1-4
Received:
26 November 2013
Published:
30 January 2014
Abstract: Water samples of River Gwagwarwa and River Jakara were analyzed for organic pollutants. The organic parameters were determined using the standard methods of America Public Health Agency (APHA) and was extracted and analyzed using Gas chromatography-mass spectrometer (GC-MS). Thirteen different organic compounds were detected at different percentage values at the two sampling stations. The compounds fall within five classes of organic compounds, which include carboxylic acid, acid chloride, ester, aldehyde and acid anhydride. The distribution pattern of the organic pollutant at the two sampling stations depict the pattern; River Gwagwarwa > River Getsi .The study shows that organochloride was the predominant organic pollutant present in the samples
Abstract: Water samples of River Gwagwarwa and River Jakara were analyzed for organic pollutants. The organic parameters were determined using the standard methods of America Public Health Agency (APHA) and was extracted and analyzed using Gas chromatography-mass spectrometer (GC-MS). Thirteen different organic compounds were detected at different percentage...
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Validation of Terrestrial Water Storage Change Estimates Using Hydrologic Simulation
Sang-Il Lee,
Jae Young Seo,
Sang Ki Lee
Issue:
Volume 3, Issue 1, February 2014
Pages:
5-9
Received:
25 February 2014
Published:
30 March 2014
Abstract: New methods estimating the amount of water storage on Earth have evolved over the years. One of them utilizes the gravitational field variation observed from the GRACE satellite. Compared to conventional methods such as water balance analysis, the method makes it simple and straightforward to obtain the terrestrial water storage change (TWSC). Previous studies show that there is a discrepancy between GRACE-based and water balance-based estimates especially in wet periods. Along with precipitation and evapotranspiration, it is common that runoff data needed for the water balance analysis are obtained from GLDAS (Global Land Data Assimilation System). In this study, GLDAS runoff data are replaced with hydrologic simulation results with such anticipation that local geomorphologic and hydrologic characteristics can be better incorporated. In an application to a relatively small basin during a wet period, GLDAS- and simulation-based TWSCs showed values 2.73~3.58 times higher than the GRACE-based estimate. It implies that the GRACE-approach underestimates TWSC during wet periods. It also suggests the need for correction factors to adjust the GRACE-based estimates in the rainy season.
Abstract: New methods estimating the amount of water storage on Earth have evolved over the years. One of them utilizes the gravitational field variation observed from the GRACE satellite. Compared to conventional methods such as water balance analysis, the method makes it simple and straightforward to obtain the terrestrial water storage change (TWSC). Prev...
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Surface Water Quality of Gorai River of Bangladesh
S. Z. K. M. Shamsad,
Kazi Zahidul Islam,
Muhammad Sher Mahmud,
A. Hakim
Issue:
Volume 3, Issue 1, February 2014
Pages:
10-16
Received:
14 February 2014
Published:
30 March 2014
Abstract: Some important characteristics of water quality of Gorai river system were evaluated for use in domestic, industrial, agriculture, recreation and aquaculture purposes. Twenty three water samples were collected both in the post monsoon period (November) and in the pre monsoon (May) period. The study revealed that most physical parameters and inorganic elements are not a serious problem for Gorai river system under decreased Ganges flow. A trend of organic and NO3 pollution in some downstream areas of higher anthropogenic activities were observed. The water of Gorai river system is fairly rich with N, P and S probably due to urban run-off and livestock activities. No heavy metal toxicity was recorded. The Ca content was high in water samples representing Ganges calcareous floodplain.
Abstract: Some important characteristics of water quality of Gorai river system were evaluated for use in domestic, industrial, agriculture, recreation and aquaculture purposes. Twenty three water samples were collected both in the post monsoon period (November) and in the pre monsoon (May) period. The study revealed that most physical parameters and inorgan...
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