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Keraita, Bernard N.Mateo-Sagasta, JavierDrechsel, PayWinkler, M.Medlicott, K.[Risk mitigation for wastewater irrigation systems in low-income countries: opportunities and limitations of the WHO guidelines]Risk mitigation for wastewater irrigation systems in low-income countries: opportunities and limitations of the WHO guidelines

In and around urban areas pollution of natural water bodies is on the rise. As a result, wastewater irrigation is an increasingly common reality around most cities in the developing world. For reasons of technical capacity or economics, effective treatment may not be available for years to come; ...


Bos, R.Carr, R.Keraita, Bernard N.[Evaluer et attenuer les risques sanitaires associes aux eaux usees dans les pays a faible revenu: une introduction. In FrenchAssessing and mitigating wastewater-related health risks in low-income countries: an introduction]Evaluer et attenuer les risques sanitaires associes aux eaux usees dans les pays a faible revenu: une introduction. In FrenchAssessing and mitigating wastewater-related health risks in low-income countries: an introduction
Keraita, Bernard N.Drechsel, Pay[Implementing non-conventional options for safe water reuse in agriculture in resource poor environments]Implementing non-conventional options for safe water reuse in agriculture in resource poor environments

Wastewater irrigation is becoming a global phenomenon, as a result of global water scarcity and increased pollution of water sources. While this practice offers many opportunities, human health risks from contaminated soils and crops irrigated with wastewater pose the greatest challenges to this ...


Abaidoo, R.C.Keraita, Bernard N.Drechsel, PayDissanayake, PriyankaMaxwell, Akple S.[Soil and crop contamination through wastewater irrigation and options for risk reduction in developing countries]Soil and crop contamination through wastewater irrigation and options for risk reduction in developing countries

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

This chapter describes the different irrigation methods and nutrient application practices used by urban vegetable farmers. Data are based on surveys conducted in Kumasi, Accra and Tamale. Recent relevant publications are also reviewed.


Keraita, Bernard N.Cofie, Olufunke O.[Irrigation and soil fertility management practices]Irrigation and soil fertility management practices

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

Wastewater may be defined as the combination of liquid wastes discharged from domestic households, farms, institutions, and commercial and industrial establishments eventually mixed with groundwater, surface water, and stormwater. Wastewater is increasingly receiving global attention as it is see...


Keraita, Bernard N.Drechsel, Pay[Agricultural water reuse in low-income settings: health risks and risk management strategies]Agricultural water reuse in low-income settings: health risks and risk management strategies

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