Your search found 5 records
1 Keraita, Bernard; Konradsen, F.; Drechsel, Pay; Abaidoo, R. C. 2007. Effect of low-cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater. Tropical Medicine and International Health, 12(Suppl. 2):15-22.
Irrigation practices ; Wastewater irrigation ; Vegetables ; Lettuces ; Urban agriculture ; Helminths ; Laboratory techniques ; Furrow irrigation ; Sprinkler irrigation ; Drip irrigation ; Biological contamination ; Health hazards ; Risks / Ghana / Kumasi
(Location: IWMI HQ Call no: IWMI 631.7.5 G200 KER Record No: H040534)
2 Keraita, Bernard; Konradsen, F.; Drechsel, Pay; Abaidoo, R. C. 2007. Reducing microbial contamination on wastewater-irrigated lettuce by cessation of irrigation before harvesting. Tropical Medicine and International Health, 12(Suppl. 2):7-13.
Wastewater irrigation ; Vegetables ; Lettuces ; Urban agriculture ; Health hazards ; Risks ; Laboratory techniques ; Biological contamination / Ghana / Kumasi
(Location: IWMI HQ Call no: IWMI 631.7.5 G200 KER Record No: H040535)
3 World Bank, Water and Sanitation Program. 2005. Towards a more effective operational response arsenic contamination of groundwater in South and East Asian Countries. Volume 2, technical report. Washington, DC, USA: World Bank, Water and Sanitation Program (WSP) V.2: 219p. (Work Bank Report No. 31303)
Groundwater management ; Aquifers ; Water quality ; Arsenic ; Water pollution ; Pollution control ; Drinking water ; Irrigation water ; Surveys ; Monitoring ; Laboratory techniques ; Costs ; Public health ; Models ; Wells / Asia / South Asia / South East Asia
(Location: IWMI HQ Call no: e-copy only Record No: H042318)
http://www-wds.worldbank.org/external/default/WDSContentServer/WDSP/IB/2005/04/06/000090341_20050406133514/Rendered/PDF/313030v2.pdf
https://vlibrary.iwmi.org/pdf/H042318.pdf
https://vlibrary.iwmi.org/pdf/H042318.pdf
(15.19 MB)
4 Akoto-Danso, Edmund Kyei. 2010. Assessing pollution and river recovery processes in the middle catchment of the Densu River Basin, Ghana. Thesis submitted to the Faculty of Science, Environmental Science Programme, University of Ghana, Legon, Ghana, in partial fulfillment of the requirement for the award of Master of Philosophy in Environmental Science. 167p.
River basins ; Water pollution ; Water quality ; Monitoring ; Assessment ; Analysis ; Laboratory techniques ; Water use ; Land use ; Social aspects ; Economic aspects / Ghana / Densu River Basin
(Location: IWMI HQ Record No: H043414)
(3.74 MB)
The Densu River serves as the main source of water in the basin and also supplies Ghana‘s capital (Accra) with a large share (44%) of its drinking water which makes water pollution a critical challenge. An assessment of pollution and river recovery was conducted in the middle catchment of the Densu River, Ghana over both rainy and dry seasons to understand the contributory factors that drive pollution in the basin. For the purposes of water resources management, the primary focus was on the river processes taking place that allow mitigation of these impacts. Suggestions were then made regarding mitigating interventions to conserve the resources in the river basin. Physico-chemical and microbial parameters were analyzed. Sample collection and analysis of the physico-chemical and microbiological parameters were conducted using international and national standards and indicators. Key informant and household interviews as well as field reconnaissance were also carried out. The study showed that the water quality within the middle catchment of the Densu Basin varies according to sampling site and season. Among the physical parameters analyzed, colour and turbidity exceeded the WHO recommended levels for river water. The values obtained for the water quality exceeded the Ghanaian Target Water Quality Range for raw water intended for domestic, irrigation and industrial use. With the exception of conductivity, the values recorded for colour, turbidly and suspended solids tend to be higher in the wet season than in the dry season. Though the mean values of the chemical parameters were within the WHO standards for raw water, bacteriological quality of the Densu River was above the recommended standards of WHO, 2006; EU, 1998 and WRC, 2003 during both the dry and wet seasons. Results showed that the Densu River water can generally be classified as fairly good compared to its desirable or natural state. There are spatial and temporary variations which require targeted monitoring, while so far the river recovers well from localized pollution. Temporal recovery was observed along the entire river. However, since concentrations of most of the parameters studied were relatively low, clear signs of full self recovery were not visible and made it difficult to evaluate the recovery capacity of the river. Despite the fact that the study area is predominantly agricultural, the study did not discover the widespread use of agrochemicals. About 47.1% of respondents do not use fertilizer, while 55.2% do not use pesticides on their farms. Given the population growth in Accra‘s vicinity, awareness raising, provision of sanitation facilities as well as the creation of buffer zones along the river banks is highly recommended to preserve this important drinking water source for the city.
5 Stalnacke, P.; Tesfai, M.; Kakumanu, Krishna Reddy. 2012. Water quality trends in the Manjeera River, Godavari Basin. [India]. In Nagothu, U. S.; Gosain, A. K.; Palanisami, Kuppannan (Eds.). Water and climate change: an integrated approach to address adaptation challenges. New Delhi, India: Macmillan. pp.123-142.
Water management ; Water quality ; Sampling ; Monitoring ; River basins ; laboratory techniques ; Statistical analysis ; Time series analysis / India / Godavari River Basin / Manjeera River
(Location: IWMI HQ Call no: IWMI Record No: H044766)
(1.35 MB)
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