Your search found 37 records
1 Guo, H.; Li, G.; Zhang, D.; Zhang, X; Lu, C. 2006. Effects of water table and fertilization management on nitrogen loading to groundwater. Agricultural Water Management, 82(1/2):86-98.
(Location: IWMI-HQ Call no: PER Record No: H038678)
2 Schmoll, O.; Chorus, I.; Appleyard, S. 2006. Establishing groundwater management priorities. In Schmoll, O.; Howard, G.; Chilton, J.; Chorus, I. (Eds.). Protecting groundwater for health: Managing the quality of drinking-warter sources. London, UK: PUB IWA Publishing for WHO. pp.411-427.
(Location: IWMI HQ Call no: 613.287 G000 SCH Record No: H040327)
3 Chave, P.; Howard, G.; Bakir, P.; Appleyard, S.; Hoque, B. 2006. Policy and legal systems to protect groundwater. In Schmoll, O.; Howard, G.; Chilton, J.; Chorus, I. (Eds.). Protecting groundwater for health: Managing the quality of drinking-warter sources. London, UK: PUB IWA Publishing for WHO. pp.537-562.
(Location: IWMI HQ Call no: 613.287 G000 SCH Record No: H040331)
4 Appleyard, S. 2006. Agriculture: control and protection. In Schmoll, O.; Howard, G.; Chilton, J.; Chorus, I. (Eds.). Protecting groundwater for health: Managing the quality of drinking-warter sources. London, UK: PUB IWA Publishing for WHO. pp.563-585.
(Location: IWMI HQ Call no: 613.287 G000 SCH Record No: H040332)
5 Custodio, E. 2007. Groundwater protection and contamination. In Ragone, S. (Ed.). The Global Importance of Groundwater in the 21st Century: Proceedings of the International Symposium on Groundwater Sustainability, Alicante, Spain, 24-27 January 2006. Westerville, OH, USA: National Groundwater Association. pp.219-231.
(Location: IWMI HQ Call no: 333.9104 G000 RAG Record No: H040490)
6 Scott, C. 2010. Groundwater. In Warf, B. Encyclopedia of geography. London, UK: Sage. 7p.
(Location: IWMI HQ Call no: e-copy only Record No: H043222)
(0.46 MB)
7 Kumar, Dinesh M.; Shah, Tushaar. 2006. Groundwater pollution and contamination in India: the emerging challenge. Vallabh Vidyanagar, Gujarat, India: IWMI-TATA Water Policy Research Program. 14p. (IWMI-TATA Water Policy Program Draft Paper 2006/1)
(Location: IWMI HQ Call no: IWMI 333.9104 G635 KUM Record No: H043613)
(Location: IWMI HQ Call no: 553.79 G000 MOR Record No: H043913)
(7.46 MB) (7.45MB)
9 Krishnan, Sunderrajan; Indu, Rajnarayan. 2006. Groundwater contamination in India: discussing physical processes, health and socio-behavioral dimensions. Vallabh Vidyanagar, Gujarat, India: IWMI-TATA Water Policy Research Program. 8p. (IWMI-TATA Water Policy Program Draft Paper 2006/5)
(Location: IWMI HQ Call no: IWMI 631.7.5 G635 KRI Record No: H043376)
(0.5 MB 0.03 MB)
10 Tiwari, M.; Mahapatra, R. 2001. Untreated industrial effluents contaminate underground aquifers: its what people drink. Down to Earth, 200 Special:226-227.
(Location: IWMI HQ Call no: e-copy only Record No: H044446)
(0.51 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H044537)
(0.63 MB)
12 Arasalingam, Sutharsiny; Manthrithilake, Herath; Pathmarajah, S.; Mikunthan, T.; Vithanage, M. 2013. Seasonal variation of Nitrate-N in groundwater: a case study from Chunnakam aquifer, Jaffna Peninsula [Abstract only] In Ileperuma, O.; Priyantha, N.; Chandrajith, R.; Navaratne, A.; Perera, A.; Yatigammana, S.; Wijesundara, S.; Rathnayake, S. (Eds). 2013. Proceedings of the Second International Symposium on Water Quality and Human Health: Challenges Ahead, Peradeniya, Sri Lanka, 15-16 March 2013. Peradeniya, Sri Lanka: University of Peradeniya. Postgraduate Institute of Science. pp.7.
(Location: IWMI HQ Call no: e-copy only Record No: H046230)
(0.09 MB)
The Jaffna Peninsula has four main aquifer systems, of which the largest Chunnakam aquifer is in the Valikamam area. This is an intensively cultivated area in the Jaffna Peninsula, and consequently, excessive application of nitrogen fertilizer is found. Other sources of nitrate include organic manures, and urine and excreta of animals through human activities. The aim of this study was to assess the N-nitrate contamination in drinking water of the Chunnakam aquifer, which was a sub-objective of a research project carried out by the International Water Management Institute (IWMI). Forty four (44) groundwater samples were collected from wells representing different uses and land use patterns. The sampling covered the period from January to December, 2011, representing all seasons. Nitrate-N in sampled water was determined colorimetrically using a spectrophotometer. The spatial variations of the water quality were mapped using ArcGIS 10. Nitrate-N values from domestic, domestic with home garden and public wells ranged from below 0.1 to 12.1 mg L'I. During the rainy season, 38% of the agro-wells exceeded the limit of WHO drinking water guidelines (10 mg L· I) and these were not suitable for drinking purposes. However, this percentage was 15% at the end of the dry season. A decreasing trend in nitrate-N concentration was observed from January to March. During the rainy season, the soil was wet enough up to the water table facilitating nitrate leaching. Nitrate-N found in most of the wells surrounded by areas with highland crops (onions, chillies, tobacco and brinjals) also exceeded the acceptable level (10 rug L'l). Even though these wells are used for agricultural purposes, people who work in the field use agro-wel1s for drinking. This water pollution is very likely related to the heavy use of N-based fertilizers for cultivation in the region. This leads to groundwater unsafe for drinking. Therefore, effective management of groundwater quality in the region is vital and further, creating awareness among population would possibly reduce the excessive use of chemical fertilizers in agriculture.
13 Elango, L. (Ed.) 2005. Numerical simulation of groundwater flow and solute transport. New Delhi, India: Allied Publishers. 245p.
(Location: IWMI HQ Call no: 553.79 G635 ELA Record No: H046629)
(0.31 MB)
14 Eguchi, S. 2011. Nitrogen accumulation in soil and ground water systems in Japan. Taipei, Taiwan: Food and Fertilizer Technology Center (FFTC). 12p. (FFTC Technical Bulletin 189)
(Location: IWMI HQ Call no: P 8153 Record No: H046702)
(1.17 MB)
15 Gunawardena, J.; Muthuwatta, Lal; Fernando, M. J. J.; Rathnayake, S.; Rodrigo, T. M. A. S. K.; Gunawardena, A. (Eds.) 2015. Proceedings of the First International Symposium on Environment Management and Planning, Battaramulla, Sri Lanka, 23-24 February 2015. Colombo, Sri Lanka: Central Environmental Authority (CEA). 55p.
(Location: IWMI HQ Call no: IWMI Record No: H046899)
(1.32 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H046948)
(1.78 MB)
Identification of a suitable overlay and index method to map vulnerable zones for pollution in weathered rock aquifers was carried out in this study. DRASTIC and four models derived from it, namely Pesticide DRASTIC, modified DRASTIC, modified Pesticide DRASTIC and Susceptibility Index (SI) were compared by applying them to a weathered rock aquifer in southern India. The results were validated with the measured geochemical data. This study also introduces the use of temporal variation in the groundwater level and nitrate concentration in groundwater as input and for validation respectively to obtain more reliable and meaningful results. Sensitivity analysis of the vulnerability index maps highlight the importance of one parameter over another for a given hydrogeological setting, which will help to plan the field investigations based on the most or the least influential parameter. It is recommended to use modified Pesticide DRASTIC for weathered rock regions with irrigation practises and shallow aquifers (<20 m bgl). The crucial input due to land use should not be neglected and to be considered in any hydrogeological setting. It is better to estimate the specific vulnerability wherever possible rather than the intrinsic vulnerability as overlay and index methods are more suited for this purpose. It is also necessary to consider the maximum and minimum values of input parameters measured during a normal year in the models used for decision making.
17 de Villiers, M. 2015. Back to the well: rethinking the future of water. Fredericton, NB, Canada: Goose Lane Editions. 378p.
(Location: IWMI HQ Call no: 333.91 G000 DEV Record No: H047454)
(0.22 MB)
18 Saha, D.; Zahid, A.; Shrestha, S. R.; Pavelic, Paul. 2016. Groundwater resources. In Bharati, Luna; Sharma, Bharat R.; Smakhtin, Vladimir (Eds.). The Ganges River Basin: status and challenges in water, environment and livelihoods. Oxon, UK: Routledge - Earthscan. pp.24-51. (Earthscan Series on Major River Basins of the World)
(Location: IWMI HQ Call no: IWMI Record No: H047811)
19 Bharati, Luna; Sharma, Bharat R.; Smakhtin, Vladimir. (Eds.) 2016. The Ganges River Basin: status and challenges in water, environment and livelihoods. Oxon, UK: Routledge - Earthscan. 327p. (Earthscan Series on Major River Basins of the World)
(Location: IWMI HQ Call no: IWMI Record No: H047808)
(0.41 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H047904)
(1.05 MB)
The present work aims at assessing the impact of MSW on the groundwater quality around dumping yard site, located near the Sangamner city by water quality index (WQI) and its integration in geographical information system (GIS). Groundwater samples (n = 15) around the dumping yard were collected using Garmin GPS device in October 2013 and October 2014. Physico-chemical analysis of same samples was carried out for pH, EC, TDS, Na+ , K+ ,Ca2+, Mg2+, TH, Cl- , HCO3 - , SO4 2- and NO3 - along with the heavy metals like Fe, Zn, Cd and Cr by using standard methods. Similarly, SAR, KRs, RSC and SSP were also calculated to know the groundwater quality into irrigation perspective. WQI for 15 samples were calculated using physico-chemical results/data of 12 parameters and its desirable limit of BIS standard. Generated WQI (z) for October 2013 and October 2014 were integrated with latitude (y) and longitude (x) values, collected using GPS during the field work. Integrated xyz data were then interpolated in Surfer-10 GIS software using inverse distance weight (IDW) method to estimate the groundwater quality of the study area. Study revealed that the groundwater quality around the dumping yard area does not confirm to drinking and domestic purposes as per the WQI and BIS standard. However, the groundwater quality is marginally suitable for irrigation as per SAR, KRs, RSC and SSP. The influence of leachate from MSW dumping site to surrounding groundwater is creating a serious concern and susceptible to potential health hazards. Thus, continuous monitoring of groundwater is desperately required in order to minimize the groundwater pollution for control the pollution-caused MSW.
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