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The chapter describes the major sites of open-space vegetable farming in Ghana’s main cities. It also presents the principal cropping systems and characteristics of urban farmers involved in irrigated vegetable production.


Danso, George K.Drechsel, PayObuobie, EmmanuelForkuor, GeraldKranjac-Berisavljevic, Gordana[Urban vegetable farming sites, crops and cropping practices]Urban vegetable farming sites, crops and cropping practices

Contamination levels of water and crops which exceed common standards are only a first indication of human health risks. This chapter shows estimates of human health risks from consumption of wastewater-irrigated vegetables based for example on dose-response modeling. The chapter focuses on hum...


Drechsel, PayKeraita, Bernard N.Seidu, R.Abaidoo, R.C.[Human health risks from wastewater-irrigated vegetable farming]Human health risks from wastewater-irrigated vegetable farming

Urbanisation is increasingly affecting inter-sectoral water allocations. This paper looks beyond physical water transfers at the larger urban water footprint and how much it is affecting the urban periphery in the case of four cities in West Africa (Accra, Kumasi, Tamale and Ouagadougou). The res...


Drechsel, PayCofie, Olufunke O.Amoah, Philip[Thirsty cities: the urban water footprint and the peri-urban interface, a four city case study from West Africa]Thirsty cities: the urban water footprint and the peri-urban interface, a four city case study from West Africa

This chapter presents approaches tested in Ghana to mitigate wastewater irrigation-related risks for consumers and farmers from microbial contamination. The recommended interventions follow the WHO approach concerning multiple barriers along the food chain. Factors that could support the uptake o...


Drechsel, PayKeraita, Bernard N.Amoah, PhilipKarg, H.[Health risk management for safe vegetable irrigation]Health risk management for safe vegetable irrigation
Seidu, R.Drechsel, PayAmoah, PhilipLofman, OweHeistad, ArveFodge, MadelieneJenssen, P.Stenstrom, T.A.[Quantitative microbial risk assessment of wastewater and faecal sludge reuse in Ghana]Quantitative microbial risk assessment of wastewater and faecal sludge reuse in Ghana

The chapter discusses how adopting a holistic methodology that acknowledges socio-logical factors, including community participation, public involvement, social perception, attitudes, gender roles and public acceptance, would lead to improvements in wastewater management practice. It highlights t...


Saad, D.Byrne, D.Drechsel, Pay[Social perspectives on the effective management of wastewater]Social perspectives on the effective management of wastewater

Revised reference values of available soil phosphorus by Bray I below which bean (Phaseolus vulgaris L.) and sorghum (Sorghum bicolor L.) yield response to applied P is expected, were 6 and 9 ppm, for January and July soil sampling dates, respectively. Reference values determined for interpretati...


Drechsel, PayMutwewingabo, BHagedorn, FWortmann, Charles S.[Soil and foliar phosphorus determination in Rwanda: Procedures and interpretation]Soil and foliar phosphorus determination in Rwanda: Procedures and interpretation
Amoah, PhilipDrechsel, PayAbaidoo, R.C.[Irrigated urban vegetable production in Ghana: sources of pathogen contamination and health risk elimination]Irrigated urban vegetable production in Ghana: sources of pathogen contamination and health risk elimination

Bos, R.Mara, D.Bahri, AkissaJiménez, B.Stenstrom, T.A.Huibers, F.Redwood, M.Kinane, M.Hamilton, A.Murray, A.Nelson, K.Abaidoo, R.C.Raschid-Sally, LiqaTiongco, M.M.Razak, S.Ensink, J.Amerasinghe, Priyanie H.Kone, D.Drechsel, PayMoe, C.Buckley, C.Niang, S.Scott, C.Amoah, PhilipDalahmeh, S.Cissé, G.Kone, B.LeJeune, J.Karg, H.Keraita, Bernard N.Evans, Alexandra E.V.Zwane, A.Silverman, A.Armstrong, J.Awadzi, D.Cofie, Olufunke O.Schoeffler, M.Rooijen, Daniel J. vanMensah, Ernest Abraham[Accra Consensus: Agenda for Research, Capacity Building and Action on the Safe Use of Wastewater and Excreta in Agriculture]Accra Consensus: Agenda for Research, Capacity Building and Action on the Safe Use of Wastewater and Excreta in Agriculture
Drechsel, PayHanjra, Munir A.[Green opportunities for urban sanitation challenges through energy, water and nutrient recovery]Green opportunities for urban sanitation challenges through energy, water and nutrient recovery

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