Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh)
The spatial variability study of arseruc concentration in Bangladesh has been characterized in using Geostatistical method. The study involved 1636 sample points of groundwater in 41 of 64 districts in Bangladesh. Based on the sample points, approximately 54% and 90% of them are exceeding the Ban...
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Universiti Teknologi Petronas
2008
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my-utp-utpedia.77562017-01-25T09:45:09Z http://utpedia.utp.edu.my/7756/ Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) Abu Hassan, Haneysa TA Engineering (General). Civil engineering (General) The spatial variability study of arseruc concentration in Bangladesh has been characterized in using Geostatistical method. The study involved 1636 sample points of groundwater in 41 of 64 districts in Bangladesh. Based on the sample points, approximately 54% and 90% of them are exceeding the Bangladesh drinking standard (<50J..lg/L) and WHO drinking standard (<10J..lg/L) respectively. Geostatistical characterization by semivariogram analysis indicated distances over which data are correlated (range), the extent of variability (sill) and degree of spatial dependencies (nugget to sill ratio). Based on the analysis, all the parameters suggested that all the spatial dependencies, variability and autocorrelation are influenced by increasing depth segments. It is shown that there are moderate to weak dependency (all above 50%), higher variability and farther distant or range towards increasing depth segments of wells. Kriging interpolated these data points and produced a smoothed contour map that estimates unavailable data points in the map. This study indicates that geostatistical analysis could reveal spatial variability nature of the arsenic in groundwater in Bangladesh. Universiti Teknologi Petronas 2008-01 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7756/1/2008%20-%20Spatial%20variability%20of%20arsenic%20in%20groundwater%20%28case%20study%20of%20Bangladesh%29.pdf Abu Hassan, Haneysa (2008) Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh). Universiti Teknologi Petronas. (Unpublished) |
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TA Engineering (General). Civil engineering (General) Abu Hassan, Haneysa Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
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The spatial variability study of arseruc concentration in Bangladesh has been
characterized in using Geostatistical method. The study involved 1636 sample points of
groundwater in 41 of 64 districts in Bangladesh. Based on the sample points,
approximately 54% and 90% of them are exceeding the Bangladesh drinking standard
(<50J..lg/L) and WHO drinking standard (<10J..lg/L) respectively. Geostatistical
characterization by semivariogram analysis indicated distances over which data are
correlated (range), the extent of variability (sill) and degree of spatial dependencies
(nugget to sill ratio). Based on the analysis, all the parameters suggested that all the
spatial dependencies, variability and autocorrelation are influenced by increasing depth
segments. It is shown that there are moderate to weak dependency (all above 50%),
higher variability and farther distant or range towards increasing depth segments of wells.
Kriging interpolated these data points and produced a smoothed contour map that
estimates unavailable data points in the map. This study indicates that geostatistical
analysis could reveal spatial variability nature of the arsenic in groundwater in
Bangladesh. |
format |
Final Year Project |
author |
Abu Hassan, Haneysa |
author_facet |
Abu Hassan, Haneysa |
author_sort |
Abu Hassan, Haneysa |
title |
Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
title_short |
Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
title_full |
Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
title_fullStr |
Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
title_full_unstemmed |
Spatial Variability of Arsenic in Groundwater (Case Study of Bangladesh) |
title_sort |
spatial variability of arsenic in groundwater (case study of bangladesh) |
publisher |
Universiti Teknologi Petronas |
publishDate |
2008 |
url |
http://utpedia.utp.edu.my/7756/1/2008%20-%20Spatial%20variability%20of%20arsenic%20in%20groundwater%20%28case%20study%20of%20Bangladesh%29.pdf http://utpedia.utp.edu.my/7756/ |
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13.160551 |