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Khatei, Ganesh
- High Uranium Concentration in Groundwater Used for Drinking in Parts of Eastern Karnataka, India
Abstract Views :186 |
PDF Views:76
Authors
R. Srinivasan
1,
S. A. Pandit
1,
N. Karunakara
2,
Deepak Salim
1,
K. Sudeep Kumara
2,
M. Rajesh Kumar
1,
Ganesh Khatei
1,
Kavitha Devi Ramkumar
1
Affiliations
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, IN
2 Centre for Advanced Research in Environmental Radioactivity, Mangalore University, Mangala Gangothri, Mangalore 574 199, IN
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, IN
2 Centre for Advanced Research in Environmental Radioactivity, Mangalore University, Mangala Gangothri, Mangalore 574 199, IN
Source
Current Science, Vol 121, No 11 (2021), Pagination: 1459-1469Abstract
The limits recommended by World Health Organization (WHO) and the Atomic Energy Regulatory Board (AERB) of India for uranium concentration in drinking water are 30 μg/l and 60 μg/l respectively. The present study on uranium concentration in groundwater used for drinking purposes in 73 villages of Karnataka, India, shows that in 57 villages uranium concentration is more than 30 μg/l, including 48 villages where it exceeds 60 μg/l. Thus in 78% and 66% of the villages studied, uranium concentration exceeds permissible limits given by WHO and AERB respectively. It is alarming to note that in one village each in Tumkur and Chitradurga districts, five in Kolar and seven in Chikkaballapura districts, uranium concentration is in thousands of micrograms per litre. None of the borewells from which water has been sampled is anywhere in the vicinity of nuclear facilities or urban waste disposal channels. Thus, the observed uranium contamination is considered to be geogenic. Previous geological studies have shown that the eastern portion of Karnataka is a part of the Neoarchean Eastern Dharwar Craton dominated by large ion lithophile element-rich K-feldspar granites and gneisses with higher abundance of radioactive elements (uranium and thorium) compared to the Mesoarchean tonalite–trondhjemite–gneisses and granitoids widely distributed in the Western Dharwar Craton.Keywords
Dharwar Craton, Geogenic Contamination, Groundwater, Uranium.Full Text
References
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- Reverse osmosis units in groundwater based public water supply system in rural eastern Karnataka, India: an analysis
Abstract Views :166 |
PDF Views:73
Authors
R. Srinivasan
1,
S. A. Pandit
1,
Ganesh Khatei
1,
N. Karunakara
2,
K. Sudeep Kumara
2,
Jean Riotte
3,
Hemant Moger
4,
P. Amala David
1,
Manoj Jindal
1,
G. Gowrisankar
1,
Kavitha Devi Ramkumar
1
Affiliations
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, India, IN
2 Centre for Advanced Research in Environmental Radioactivity, Mangalore University, Mangala Gangothri, Mangaluru 574 199, India, IN
3 Indo-French Cell for Water Sciences, Indian Institute of Science, Bengaluru 560 012, India; Geosciences Environment Toulouse, 31400 Toulouse, France, IN
4 Indo-French Cell for Water Sciences, Indian Institute of Science, Bengaluru 560 012, India, IN
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, India, IN
2 Centre for Advanced Research in Environmental Radioactivity, Mangalore University, Mangala Gangothri, Mangaluru 574 199, India, IN
3 Indo-French Cell for Water Sciences, Indian Institute of Science, Bengaluru 560 012, India; Geosciences Environment Toulouse, 31400 Toulouse, France, IN
4 Indo-French Cell for Water Sciences, Indian Institute of Science, Bengaluru 560 012, India, IN
Source
Current Science, Vol 123, No 12 (2022), Pagination: 1493-1498Abstract
Adequacy, eco-friendliness and desirability of continuation of reverse osmosis (RO) purification of groundwater for providing safe drinking water to villages in the groundwater resource-deficient eastern Karnataka, India, have been studied in 15 villages in 4 districts of the state, where high fluoride and uranium contamination has been observed. The results indicate that: (i) except in Chitradurga district, there are an inadequate number of RO facilities; (ii) RO water consumption is far less than the minimum amount recommended for drinking by WHO; (iii) while the benchmark of the best performance for RO membranes is >99%, the RO units in use show an average fluoride and uranium rejection percentage of 92.6 and 95.1 respectively; and (iv) similar to almost all RO units, the installed ones are also wasting water in the water-deficient eastern Karnataka and discharging concentrate with a higher percentage of contaminants into the environment. Better management of RO units and RO concentrate is required.Keywords
Contaminants, environmental friendliness, groundwater, reverse osmosis, sustainable rural water supply.Full Text
References
- CGWB, Groundwater Yearbook of Karnataka, Central Ground Water Board, Bengaluru, 2020–21, pp. 1–190.
- GoI, Uranium occurrence in shallow aquifers in India. Central Ground Water Board, River Development and Ganga Rejuvenation, Department of Water Resources, Ministry of Jal Sakthi, Government of India, 2020, pp. 1–58.
- Coyte, R. M., Jain, R. C., Srivastava, S. K., Sharma, K. C., Khalil, A., Ma, L. and Vengosh, A., Large-scale uranium contamination of groundwater resources in India. Environ. Sci. Technol. Lett., 2018, 5, 341–347; https://doi.org/10.1021/acs.estlett.8b00215.
- Sahoo, S., Jha, S., Jha, V., Patra, A. and Kulkarni, M., Survey of uranium in drinking water sources in India: interim observations. Curr. Sci., 2021, 120(9), 1482–1490; http://dx.doi.org/10.18520/cs/v120/i9/1482-1490.
- Srinivasan, R. et al., High uranium concentration in groundwater used for drinking in parts of eastern Karnataka, India. Curr. Sci., 2021, 121(11), 1459–1469; http://dx.doi.org/10.18520/cs/v121/i11/1459-1469.
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