Your search found 2 records
1 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)
2 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.
Powered by DB/Text WebPublisher, from
