Your search found 17 records
1 Jensen, P. K.; Aalbµk, B.; Aslam, R.; Dalsgaard, A.. 2001. Specificity for field enumeration of Escherichia coli in tropical surface waters. Journal of Microbiological Methods, 45:135-141.
(Location: IWMI-HQ Call no: IWMI 631.7.5 G730 JEN Record No: H028467)
(0.58 MB)
2 Jensen, P. K.; Aalbaek, B.; Aslam, R.; Dalsgaard, A.. 2001. Specificity for field enumeration of escherichia coil in tropical surface water. In Jensen, P. K. Domestic users of irrigation water: Water quality and health impacts. Copenhagen, Denmark: Royal Veterinary and Agricultural University. pp.66-72.
Public health ; Surface water ; Irrigation water ; Water supply ; Sanitation ; Water quality ; Waterborne diseases / Pakistan / Punjab
(Location: IWMI-HQ Call no: D IWMI 631.7.5 G000 JEN Record No: H028796)
(0.52 MB)
3 Jensen, P. K.; Ensink, J. H. J.; Jayasinghe, G.; Van der Hoek, W.; Cairncross, S.; Dalsgaard, A.. 2002. Domestic transmission routes of pathogens: the problem of in-house contamination of drinking water during storage in developing countries. Tropical Medicine and International Health, 7(7):604–609.
(Location: IWMI-HQ Call no: IWMI 628.1 G000 JEN Record No: H028798)
Also published in Jensen, P. K. Domestic users of irrigation water: Water quality and health impacts. Copenhagen, Denmark: Royal Veterinary and Agricultural University. pp.84-93
4 Jensen, P. K.; Ensink, J. H. J.; Jayasinghe, G.; Van der Hoek, W.; Cairncross, S.; Dalsgaard, A.. 2001. The effect of drinking water chlorination quality and childhood diarrhea in Pakistan. In Jensen, P. K. Domestic users of irrigation water: Water quality and health impacts. Copenhagen, Denmark: Royal Veterinary and Agricultural University. pp.96-104.
Public health ; Water supply ; Sanitation ; Water quality ; Waterborne diseases ; Water users / Pakistan / Southern Punjab
(Location: IWMI-HQ Call no: D IWMI 631.7.5 G000 JEN Record No: H028799)
5 Jensen, P. K.; Jayasinghe, G.; Van der Hoek, W.; Cairncross, S.; Dalsgaard, A.. 2001. Is there association between bacteriological water quality and childhood diarrhea in rural areas in developing countries? In Jensen, P. K. Domestic users of irrigation water: Water quality and health impacts. Copenhagen, Denmark: Royal Veterinary and Agricultural University. pp.106-114.
Public health ; Irrigation water ; Water supply ; Sanitation ; Water quality ; Waterborne diseases ; Developing countries / Pakistan / Southern Punjab / Cholistan desert
(Location: IWMI-HQ Call no: D IWMI 631.7.5 G000 JEN Record No: H028855)
6 Dalsgaard, A.. 2001. Health aspects of the reuse of wastewater in agriculture and aquaculture in Vietnam. In Raschid-Sally, L.; van der Hoek, W.; Ranawaka, M. (Eds.), Wastewater reuse in agriculture in Vietnam: water management, environment and human health aspects. Proceedings of a workshop held in Hanoi, Vietnam, 14 March 2001. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.26-27. (IWMI Working Paper 030)
Wastewater ; Water reuse ; Irrigation water ; Aquaculture ; Public health ; Risks ; Diseases / Vietnam
(Location: IWMI-HQ Call no: IWMI 631.7.5 G784 RAS Record No: H029042)
(1.03MB)
7 Jensen, P. K.; Ensink, J. H. J.; Jayasinghe, G.; van der Hoek, W.; Cairncross, S.; Dalsgaard, A.. 2003. Effect of chlorination of drinking-water on water quality and childhood diarrhoea in a village in Pakistan. Journal of Health Population and Nutrition, 21(1):26-31.
Domestic water ; Water quality ; Water supply ; Health ; Waterborne diseases ; Villages / Pakistan / Southern Punjab
(Location: IWMI-HQ Call no: P 6344 Record No: H032335)
8 Jensen, P. K.; Jayasinghe, Gayathri; van der Hoek, Wim; Cairncross, S.; Dalsgaard, A.. 2004. Is there an association between bacteriological drinking water quality and childhood diarrhea in developing countries? Tropical Medicine and International Health, 9(11):1210-1215.
Domestic water ; Water pollution ; Water quality ; Sanitation ; Public health ; Risks ; Waterborne diseases / Pakistan / Punjab
(Location: IWMI-HQ Call no: IWMI 628.1 G730 JEN Record No: H035926)
9 van der Hoek, Wim; Anh, V. T.; Cam, P. D.; Vicheth, C.; Dalsgaard, A.. 2005. Skin diseases among people using urban wastewater in Phom Penh. Urban Agriculture Magazine, 14:30-31.
(Location: IWMI-HQ Call no: P 7445 Record No: H037886)
http://www.ruaf.org/sites/default/files/uam14_article9.pdf
https://vlibrary.iwmi.org/pdf/H037886.pdf
https://vlibrary.iwmi.org/pdf/H037886.pdf
(0.33 MB) (336.46 KB)
10 Trang, D. T.; van der Hoek, Wim; Cam, P. D.; Vinh, K. T.; Van Hoa, N.; Dalsgaard, A.. 2006. Low risk for helminth infection in wastewater-fed rice cultivation in Vietnam. In Raschid-Sally, Liqa; Jayakody, Priyantha (Eds.). Proceedings of Workshop on Wastewater Reuse in Agriculture in Vietnam: Water Management, Environment and Human Health Aspects, Hanoi, Vietnam, 4 May 2006. In English and Vietnamese. Hanoi, Vietnam: Agriculture Publishing House; Hanoi, Vietnam: Center for Participatory Irrigation Management (CPIM) of Vietnam Institute for Water Resources Research; Hanoi, Vietnam: International Water Management Institute (IWMI). pp.171-179.
Rice ; Wastewater ; Water reuse ; Irrigation water ; Public health ; Risks ; Helminths ; Drinking water ; Sanitation / Vietnam / Nam Dinh City
(Location: IWMI-HQ Call no: IWMI 631.7.5 G784 RAS Record No: H038719)
11 Knudsen, L. G.; Samuelsen, H.; Phuc, P. D.; Hiep, N. T.; Anh, N.; Raschid-Sally, Liqa; Dalsgaard, A.; Konradsen, F. 2006. The fear of bad smell: health risk awareness related to using waste in agricultural production in Vietnam. In Raschid-Sally, Liqa; Jayakody, Priyantha (Eds.). Proceedings of Workshop on Wastewater Reuse in Agriculture in Vietnam: Water Management, Environment and Human Health Aspects, Hanoi, Vietnam, 4 May 2006. In English and Vietnamese. Hanoi, Vietnam: Agriculture Publishing House; Hanoi, Vietnam: Center for Participatory Irrigation Management (CPIM) of Vietnam Institute for Water Resources Research; Hanoi, Vietnam: International Water Management Institute (IWMI). pp.186-195.
Wastewater ; Water reuse ; Agricultural production ; Fish farming ; Irrigation water ; Public health ; Risks ; Skin diseases ; Organic fertilizers ; Women / Vietnam / Phuc Son / Bang B / To Lich River
(Location: IWMI-HQ Call no: IWMI 631.7.5 G784 RAS Record No: H038721)
12 Trang, D. T.; Tuan, Nguyen Dang; van der Hoek, Wim; Cam, Phung Dac; Viet, D. H.; Luu, D. D.; Dalsgaard, A.. 2006. Skin problems among farmers engaged in wastewater-fed agriculture in Namdinh Province, Vietnam. In Raschid-Sally, Liqa; Jayakody, Priyantha (Eds.). Proceedings of Workshop on Wastewater Reuse in Agriculture in Vietnam: Water Management, Environment and Human Health Aspects, Hanoi, Vietnam, 4 May 2006. In English and Vietnamese. Hanoi, Vietnam: Agriculture Publishing House; Hanoi, Vietnam: Center for Participatory Irrigation Management (CPIM) of Vietnam Institute for Water Resources Research; Hanoi, Vietnam: International Water Management Institute (IWMI). pp.180-185.
Farmers ; Health ; Skin diseases ; Risks ; Wastewater ; Water reuse ; Irrigated farming ; Rice / Vietnam / Namdinh Province / My Tan Commune
(Location: IWMI-HQ Call no: IWMI 631.7.5 G784 RAS Record No: H038720)
13 Marcussen , H; Joergensen, K.; Holm, P. E.; Brocca, D.; Simmons, Robert W.; Dalsgaard, A.. 2007. Element contents and food safety of water spinach (Ipomoea aquatica Forssk.) cultivated with wastewater in Hanoi, Vietnam. Environmental Monitoring and Assessment, 139(1-3):77-91.
Wastewater irrigation ; Rain ; Conjunctive use ; Spinach ; Vegetables ; Soil toxicity ; Food safety ; Health hazards / Vietnam / Hanoi / Hoang Mai / Bang B Village / Tran Phu Village
(Location: IWMI HQ Call no: IWMI 631.7.2 G784 MAR Record No: H040590)
(0.24 MB)
14 Ensink, Jeroen H. J.; Mahmood, Tariq; Dalsgaard, A.. 2007. Wastewater-irrigated vegetables: Market handling versus irrigation water quality. Tropical Medicine and International Health, 12(Suppl.2):1-6.
Wastewater irrigation ; Vegetables ; Escherichia coli ; Helminths ; Health hazards ; Risks ; Urban agriculture ; Water quality ; Surveys / Pakistan / Faisalabad
(Location: IWMI HQ Call no: IWMI 631.7.5 G000 ENS Record No: H040599)
Objective and methods: Vegetables irrigated with untreated domestic wastewater were, at the time of harvest, analysed for the presence of the faecal indicator, Escherichia coli, and helminth eggs in Faisalabad, Pakistan. Vegetables from the same harvested batch were collected approximately 12 h later from the local market. Results: The survey found relatively low concentrations of E. coli (1.9 E. coli per gram), but relatively high concentrations of helminths (0.7 eggs per gram) on vegetables collected from agricultural fields. Higher concentration of both E. coli (14.3 E. coli per gram) and helminths (2.1 eggs per gram) were recovered from the vegetables collected from the market. Conclusions: The results of the survey suggest that unhygienic post harvest handling was the major source of produce contamination. Interventions at the market, such as the provision of clean water to wash produce in, are better ways to protect public health and more cost effective than wastewater treatment.
15 Kundsen, L. G.; Phuc, P. D.; Hiep, N. T.; Samuelsen, H.; Jensen, P. K.; Dalsgaard, A.; Raschid-Sally, Liqa; Konradsen, F. 2008. The fear of awful smell: risk perceptions among farmers in Vietnam using wastewater and human excreta in agriculture. Southeast Asian Journal of Tropical Medicine and Public Health, 39(2):341-352.
Wastewater irrigation ; Health hazards ; Excreta ; Fertilizers ; Hygiene ; Women farmers ; Fisheries / Vietnam / Hanoi / Nghe An Province
(Location: IWMI HQ Record No: H041254)
Vietnamese farmers’ health-risk awareness, knowledge, and practices related to their use of wastewater and human excreta was investigated in an anthropological study by a multidisciplinary team in peri-urban Hanoi and Nghe An Province. Farmers identified health risks associated with their use of excreta and wastewater, but they viewed these as unavoidable risks related to production. They perceived the health risks as different for the use of wastewater and human feces. They perceived health risks from wastewater as non-serious because it remained on the skin and only caused skin problems, but they considered health risks from non-composted smelly feces serious because it entered the body through ‘polluted’ air. Most farmers were more aware of threats to health from ‘dirt’ entering the domestic environment than of the health risks during their work. The concept of ‘dirt’ should be separated from understanding of germs, viruses, and parasites so that it is understood that things that carrying health risks cannot always be identified by their ‘dirtiness’ or smell. Farmers mainly considered hygiene and health as women’s issues. Men’s responsibility for the health and hygiene of the family should therefore be emphasized.
16 Holm, P. E.; Marcussen, H.; Dalsgaard, A.. 2010. Fate and risks of potentially toxic elements in wastewater-fed food production systems: the examples of Cambodia and Vietnam. Irrigation and Drainage Systems, 24(1-2):127-142 (Special issue with contributions by IWMI authors) [doi: https://doi.org/10.1007/s10795-009-9086-6]
Wastewater irrigation ; Water quality ; Heavy metals ; Sedimentary materials ; Food production ; Risks ; Fish ; Leaf vegetables ; Health hazards ; Farmers ; Urban areas / South East Asia / Cambodia / Vietnam / Hanoi / Phnom Penh
(Location: IWMI HQ Call no: e-copy only Record No: H042883)
http://www.springerlink.com/content/762895738805724j/fulltext.pdf
https://vlibrary.iwmi.org/pdf/H042883.pdf
https://vlibrary.iwmi.org/pdf/H042883.pdf
(0.20 MB)
Non-treated wastewater is used for irrigation of aquatic food production systems in the peri-urban areas of the major cities in Southeast Asia. This paper complement the knowledge on agricultural soil-based crops irrigated with low quality water, by reviewing the research findings on the wastewater-fed aquatic productions with special focus on heavy metals and other potentially toxic elements (PTEs) in the production systems of Hanoi in Vietnam and Phnom Penh in Cambodia. In Hanoi, sediments in the wastewater exposed rivers of Hanoi were reported to be polluted with PTEs, in particular with Cadmium (Cd). The river sediment had a high retention capacity for PTEs which seems to prevent the transport of PTEs to the wastewater-fed production systems. In Phnom Penh, domestic and industrial wastewater is pumped into the Cheung Ek Lake located south of the city. A major part of the water spinach (Ipomoea aquatica Forssk.) consumed in the city is produced in the lake. The concentrations of some PTEs were elevated at the wastewater inlets to the lake compared to concentrations at the lake outlet and at the control site. Water spinach is by far the major vegetable produced in the wastewater-fed systems in Hanoi and Phnom Penh, but did only contain PTEs in concentrations within or slightly above the concentration range observed for water spinach grown in agricultural soil not exposed to wastewater. PTE concentration in fish grown in wastewater-fed systems in Hanoi and Phnom were low. However, mean PTE concentrations in liver and skin of some fish were high. Consumption of muscle tissue from fish produced in wastewater-fed systems in Hanoi and Phnom Penh resulted in an estimated intake of PTEs amounting to less than 9% of the tolerable intake. It was concluded, that the PTE concentrations in fish and water spinach from Hanoi and Cheung Ek Lake in Phnom Penh constituted low food safety risks for consumers.
17 Sengupta, M. E.; Keraita, Bernard; Olsen, A.; Boateng, Osei K.; Thamsborg, S. M.; Palsdottir, G. R.; Dalsgaard, A.. 2012. Use of Moringa oleifera seed extracts to reduce helminth egg numbers and turbidity in irrigation water. Water Research, 46(11):3646-3656. [doi: https://doi.org/10.1016/j.watres.2012.04.011]
Irrigation water ; Wastewater ; Moringa oleifera ; Helminths ; Turbidity ; Urban agriculture ; Vegetable growing ; Statistical methods / Ghana
(Location: IWMI HQ Call no: e-copy only Record No: H044902)
(0.85 MB)
Water from wastewater-polluted streams and dug-outs is the most commonly used water source for irrigation in urban farming in Ghana, but helminth parasite eggs in the water represent health risks when used for crop production. Conventional water treatment is expensive, requires advanced technology and often breaks down in less developed countries so low cost interventions are needed. Field and laboratory based trials were carried out in order to investigate the effect of the natural coagulant Moringa oleifera (MO) seed extracts in reducing helminh eggs and turbidity in irrigation water, turbid water, wastewater and tap water. In medium to high turbid water MO extracts were effective in reducing the number of helminth eggs by 94e99.5% to 1e2 eggs per litre and the turbidity to 7e11 NTU which is an 85e96% reduction. MO is readily available in many tropical countries and can be used by farmers to treat high turbid water for irrigation, however, additional improvements of water quality, e.g. by sand filtration, is suggested to meet the guideline value of 1 helminth egg per litre and a turbidity of 2 NTU as recommended by the World Health Organization and the U.S. Environmental Protection Agency for water intended for irrigation. A positive correlation was established between reduction in turbidity and helminth eggs in irrigation water, turbid water and wastewater treated with MO. This indicates that helminth eggs attach to suspended particles and/or flocs facilitated by MO in the water, and that turbidity and helminth eggs are reduced with the settling flocs. However, more experiments with water samples containing naturally occurring helminth eggs are needed to establish whether turbidity can be used as a proxy for helminth eggs.
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