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Drechsel, PayKeraita, Bernard N.[Irrigated urban vegetable production in Ghana: characteristics, benefits and risk mitigation]Irrigated urban vegetable production in Ghana: characteristics, benefits and risk mitigation

Urban vegetable production and marketing systems in low-income countries are prone to contamination from polluted irrigation water, use of manure as fertilizer, unsanitary market conditions and other improper postharvest handling practices. In the recent past, the multiple-barrier approach has be...


Keraita, Bernard N.Amoah, PhilipDrechsel, PayAkple, Maxwell Selase Kwasi[Enhancing adoption of food safety measures in urban vegetable production and marketing systems]Enhancing adoption of food safety measures in urban vegetable production and marketing systems

Background: In Addis Ababa, where irrigation water for vegetable production is commonly derived from the highly polluted Akaki river, information on microbial contamination of water and irrigated vegetable is scanty. An assessment was done to determine the microbiological quality of irrigation wa...


Woldetsadik, D.Drechsel, PayKeraita, Bernard N.Itanna, F.Erko, B.Gebrekidan, H.[Microbiological quality of lettuce (Lactuca sativa) irrigated with wastewater in Addis Ababa, Ethiopia and effect of green salads washing methods]Microbiological quality of lettuce (Lactuca sativa) irrigated with wastewater in Addis Ababa, Ethiopia and effect of green salads washing methods
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
Autor: Drechsel, Pay

Reflecting on the food-energy nexus, my first thought went to the Haber–Bosch process. Perhaps no other human invention has had a more dramatic impact on our wellbeing and mother Earth than the Haber-Bosch chemistry. As the reader might know, and I am citing here largely from Wikipedia, the Haber...


Drechsel, Pay[The Food-Energy Nexus is Closer to our Heart than we might think]The Food-Energy Nexus is Closer to our Heart than we might think

The use of wastewater to produce food crops particularly vegetables is very prevalent in Addis Ababa, Ethiopia. This practice may pose health risks to farm workers and consumers. Hence, the study was designed to evaluate farmers’ perceptions on irrigation water quality, health risks and health ri...


Woldetsadik, D.Drechsel, PayKeraita, Bernard N.Itanna, F.Gebrekidan, H.[Farmers’ perceptions on irrigation water contamination, health risks and risk management measures in prominent wastewater-irrigated vegetable farming sites of Addis Ababa, Ethiopia]Farmers’ perceptions on irrigation water contamination, health risks and risk management measures in prominent wastewater-irrigated vegetable farming sites of Addis Ababa, Ethiopia

Otoo, MiriamDrechsel, Pay[Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries]Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries

To identify interventions which reduce health risks of consumers where highly polluted irrigation water is used to irrigate vegetables in West Africa, scientists worked over 5 years with farmers, market traders and street food vendors in Ghana. The most promising low-cost interventions with high ...


Amoah, PhilipKeraita, Bernard N.Akple, Maxwell Selase KwasiDrechsel, PayAbaidoo, R.C.Konradsen, Flemming[Low-cost options for reducing consumer health risks from farm to fork where crops are irrigated with polluted water in West Africa]Low-cost options for reducing consumer health risks from farm to fork where crops are irrigated with polluted water in West Africa

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