Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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Critical findings
26 results(1 / 2)
Geo-AI Ensemble Modeling Framework for Assessing Groundwater Contamination Under Anthropogenic Pressures in an Extensive Peri-Urban Agricultural Aquifer to Support Sustainable Groundwater Management
2026Mohamed Haythem Msaddek, Mohsen Ben Alaya, Lahcen Zouhri, Yahya Moumni, Bilel Abdelkarim · Water · Global
This study developed a Geo-AI ensemble modeling framework to assess groundwater contamination dynamics in peri-urban agricultural aquifers. Applied to the Manouba aquifer in Tunisia using 295 samples from 85 wells (2005-2025), the spatial analysis revealed severe contamination expanded from 7% of the study area in 2005 to 55% in 2025. Urban expansion and agricultural intensification were found to reduce recharge, increase pollutant loading, and accelerate contaminant accumulation.
Contamination & food safetyClimate changePeri-urban agriculturePhysicochemical Characterization of Surface Waters under Lettuce and Rice Cultivation in the City of Daloa, Côte d’Ivoire
2026Bahi Aristide Armand, Ohou-Yao Marie Jeanne, Kouamé Leonard Kouadio, Sahiri Grâces Kérène, Akpètou Lazare, Akessé Djamatché Paul, Koné Oumar, Dongui Bini Kouamé · International Journal of Environment and Climate Change · Côte d’Ivoire (Daloa)
This study characterized the physicochemical quality of surface waters at 30 sampling points in lettuce and rice cultivation areas in Daloa, Côte d’Ivoire, from January 2024 to January 2025. Physicochemical analyses revealed spatial variability in water quality parameters, with marked fluctuations influenced by agricultural activities. The findings indicate that surface waters are exposed to contamination from farming practices, domestic activities, and rapid urbanization.
Contamination & food safetyHealthClimate changeOrganic cycleThe Rise of Urban Agriculture and Its Implications for Food Systems
2025Godswill Ntsomboh Ntsefong · IntechOpen eBooks · Global
This chapter examines the global growth and implications of urban agriculture. While urban agriculture enhances food security, it also introduces food safety risks from contaminated soils and infrastructure gaps. Challenges related to heavy metals, waste, and inadequate land planning are evaluated, and barriers such as land access and limited training for producers persist.
Contamination & food safetyFood sovereignty & justiceCommunityHealthEconomicsPolicyClimate changeA comprehensive review of urban agriculture in a changing climate: Technological innovations and policy frameworks
2025Peng Gao, Shuochen Xiao, Fara Diva Mustapa · Climate Risk Management · Global
This comprehensive review synthesized research on urban and peri-urban agriculture (UPA) globally, specifically within the context of its advantages, challenges, and climate change mitigation and adaptation efforts, including technological innovations and policy frameworks. The review demonstrated UPA’s ability to advance social interactions, improve urban microclimates, mitigate the urban heat island phenomenon, and provide essential ecosystem services. However, UPA is limited by scarce land resources and soil contamination, along with water management challenges and regulatory frameworks.
Contamination & food safetyClimate changePolicyFood sovereignty & justiceDigital agricultureEnvironmental ethics under commercialization of urban agriculture
2025K I Safitri, Oekan S. Abdoellah, Budhi Gunawan, P Parikesit · Ethics in Science and Environmental Politics · Global
This qualitative study investigated the commercialization of urban agriculture and its influence on agricultural practices and environmental ethics, engaging 43 participants through observation, interviews, and documentation. Findings showed that global commercialization promotes policies for environmental sustainability, leading to aligned production methods. However, in local contexts, farmers cultivating sloped land without perennial crops often use artificial inputs and contaminated irrigation water, facing constraints from intermediaries.
Contamination & food safetyEconomicsPolicyClimate changeFood sovereignty & justiceImpact of zinc on arbuscular mycorrhizal-mediated nutrient acquisition in urban horticulture
2024Miles P.A. Bate-Weldon, Jill L. Edmondson, Katie J. Field · iScience · Global
This study investigated the effect of urban environmentally relevant concentrations of zinc in soils on nutrient exchange between arbuscular mycorrhizal fungi and pea plants using radio-isotope tracing. It found that at higher zinc concentrations, the transfer of phosphorus from fungi to plants and carbon from plants to fungi dramatically decreased. The results suggest that while urban horticulture has potential for food production, the unchecked presence of contaminants like zinc in urban soils may critically hinder its realization.
Contamination & food safetyHealthOrganic cycleClimate changeRecent Use of AB Mix Nutrients for Urban Farming in Malaysia: A Mini Review
2024Nur Dinie Syahirah Sanusi, Fadhlina Che Ros, Siti Zulaikha Ngah Demon, Ismayadi Ismail, Imad Hamadneh · Journal of Advanced Research Design · Malaysia
This mini-review discusses the extensive use of AB mix nutrients in Malaysian urban farming, noting their role in high yields but also their contribution to significant environmental pollution when overused. Although a survey of local entrepreneurs showed most complied with guidelines for chili plants, intensive use of fertilizers leads to nutrient leaching into the soil, causing environmental pollution and affecting humans, livestock, and microbial life. The review emphasizes the need for controlled nutrient application to prevent soil degradation and groundwater contamination.
Contamination & food safetyOrganic cycleClimate changeHealthPlanetary health risks in urban agriculture
2024Nilanjana Ganguli, Anna Maria Subic, Janani Maheswaran, Byomkesh Talukder · Global Health Journal · Global
A systematic literature review of 55 papers identified five distinct planetary health risks associated with urban agriculture, despite its environmental benefits. The study highlighted particular concerns regarding trace metal bioaccumulation in soil and vegetables, posing health risks to populations. Additionally, risks related to wastewater irrigation, backyard livestock farming, and gaps in infectious disease research were identified.
Contamination & food safetyHealthClimate changeCommunityA Comprehensive Review on Evolution, Challenges of Models, Opportunities in Urban Farming Practices in the World
2024Anushi Anushi, A. Krishnamoorthi, Jitendra Chaurasia, Bijay Kumar Baidya, Abhishek Singh, Sapna, Vijay Kumar, Anushka Singh · Journal of Scientific Research and Reports · Global
This review explores the historical evolution and diverse models of urban farming, highlighting their contributions to food security, environmental sustainability, and community resilience. Challenges faced by urban farmers include limited space, soil contamination, regulatory hurdles, and access to resources.
Contamination & food safetyCommunityFood sovereignty & justiceClimate changePolicyEconomicsHeavy metal contamination of vegetables in urban and peri-urban areas. An overview
2023Gerhard Fischer, F. Fischer · Revista Colombiana de Ciencias Hortícolas · Global
This overview, based on the ScienceDirect database, addresses heavy metal (HM) contamination in vegetables from urban and peri-urban areas. It notes that HMs like Cd, Pb, Hg, Cr, and As accumulate to toxic levels in the soil-plant-consumer continuum, causing health damage to consumers and physiological alterations in plants. Leafy and solanaceous vegetables accumulate the most HMs, while cucurbits and legumes are least affected.
Contamination & food safetyHealthClimate changePotential And Need of Urban Horticulture for A Sustainable Future
2023Mansi I. Bhati and R.K. Dubey · Zenodo (CERN European Organization for Nuclear Research) · Global
Urban horticulture, a new concept for growing family-sufficient food in urban and peri-urban areas, is gaining importance. However, environmental challenges for urban farming in urban environments include soil contamination, micro-climate alteration and air pollution, and contaminated water resources. Appropriate guidelines for urban and peri-urban agricultural practices are required.
Contamination & food safetyDIYPeri-urban agricultureClimate changeFood sovereignty & justiceSeasonal variation and risks of potentially toxic elements in agricultural lowlands of central Cameroon
2023Annie Stéphanie Nana, Timo Falkenberg, Andrea Rechenburg, Joshua Ntajal, Juliet Wanjiku Kamau, Anne Ayo, Christian Borgemeister · Environmental Geochemistry and Health · Cameroon (Yaoundé)
This study assessed the seasonal characteristics and ecological risks of potentially toxic elements (Cu, Pb, Zn, Cd, Cr, Ni) in urban agricultural soils across four lowlands in Yaoundé, Cameroon. Concentrations of Cu, Pb, Zn, and Cr exceeded recommended thresholds in some or all areas, with Cr exceeding thresholds in all areas during both seasons. One area recorded strong soil pollution (grade V) during the wet season, indicating that preventive action is needed to limit heavy metal contamination in the lowlands of Yaoundé.
Contamination & food safetyHealthClimate changeÉvaluation et risque sanitaire de la bioaccumulation de métaux lourds (cadmium, cuivre, plomb et le zinc) chez le chou (Brassica Oleracea L.) produit en agriculture urbaine : Cas du périmètre maraicher de Dogona (Bobo-Dioulasso)
2023Issaka Senou · Journal of Applied Biosciences · Burkina Faso
This study assessed heavy metal bioaccumulation in cabbage grown on the Dogona market garden perimeter in Bobo-Dioulasso, Burkina Faso, using a randomized block design with urban solid waste treatments. The results showed high levels of cadmium, copper, and lead in cabbage leaves, with concentrations significantly exceeding WHO standards across all treatments. A critical finding was that consuming this cabbage poses a high health risk to consumers due to significant ingestion of cadmium and lead.
Contamination & food safetyHealthOrganic cycleClimate changeRisk of Waterborne Parasitic Infection among Vegetables Producers in the City of Ouagadougou, Burkina Faso: An Attempt to Quantify Them Using the Quantitative Microbiological Risk Assessment Method
2022Noëllie W. Kpoda, Hamidatu S. Darimani, Adama Ouéda, Idrissa Ouédraogo, Gustave B. Kabré · Agricultural Sciences · Burkina Faso (Ouagadougou)
This study evaluated the risk of parasitic infection among vegetable producers in Ouagadougou, Burkina Faso, who use polluted water, employing a quantitative microbiological risk assessment method. Protozoa and helminths from 9 species were detected in irrigation water, with Ancylostoma sp. eggs being common and severe across all water types. Contamination risk was higher for groups using raw wastewater than for those using well water, and halved for those using treated wastewater; however, regardless of water type, gardeners had an approximate 9.83 × 10−1 pppy probability of Ancylostoma sp. infection.
Contamination & food safetyHealthClimate changePollution in rainwater harvesting: A challenge for sustainability and resilience of urban agriculture
2021Yang Deng · Journal of Hazardous Materials Letters · Global
While rainwater harvesting (RWH) is considered a sustainable irrigation method for urban agriculture, contaminants in rainwater pose challenges to RWH practices due to potential threats to crop, soil, and human health. Based on literature data, principal pollutants such as particles, toxic metals like cadmium, copper, and zinc, synthetic organic chemicals like agrochemicals and polycyclic aromatic hydrocarbons, and waterborne pathogens were identified as likely exceeding irrigation quality criteria. This study identifies challenges, knowledge gaps, and research needs for RWH irrigation, offering a basis for technical strategies.
Contamination & food safetyHealthClimate changeOrganic cycleClimate Change and Fecal Peril
2021Ahmed Khadra · IGI Global eBooks · Global
This chapter examines the health effects of climate change, specifically focusing on the global issue of fecal peril caused by intestinal parasites. It suggests that water shortages, driven by climate change, increase pressure on water resources, leading to greater use of urban wastewater for irrigation in urban agriculture. Unsafe management and inappropriate wastewater use are likely to exacerbate the transmission of infectious diseases, including those caused by intestinal protozoa and helminths.
Contamination & food safetyHealthClimate changeOrganic cycleAgriculture urbaine, pratiques agricoles et impacts environnementaux et de santé publique
2020Maëlle Tripon, Dorothée Boccanfuso, Marie-Ève Yergeau · Cahiers de recherche · Global
This literature review examines urban agriculture (UA) models, their implementation contexts, production needs, and impacts. It highlights that UA faces limitations, particularly restricted access to good quality (unpolluted) soil, water, and air, which can negatively impact productivity. UA can also have negative impacts on ecosystems and human health, such as pollution and diseases, depending on management methods.
Contamination & food safetyHealthBiodiversityClimate changeOrganic cycleEvaluation of the irrigation water quality and cropped area of shrinking peri‐urban agriculture in the Gadap Basin, Karachi: An application of Wilcox's classification and geospatial techniques*
2020Razzaq Ahmed, Shaukat Khan, Khalida Mahmood, Ahsanullah · Irrigation and Drainage · Pakistan (Karachi)
Agricultural activities in the Gadap Basin, Karachi, Pakistan, showed a declining trend over two decades from 1997 to 2016. Analysis of 13 irrigation water samples revealed that water quality had severely degraded, with sodium concentration substantially increasing, especially near sand and gravel excavation sites. While 100% of samples were suitable for irrigation in 1997, this dropped to almost 50% by 2016, and SAR also decreased, indicating irrigation water quality degradation. Satellite imagery further showed a 60% decline and degradation of agricultural land in the basin during the same period.
Contamination & food safetyPeri-urban agricultureClimate changeAssessing the sustainability of vegetable production practices in northern Ghana
2017Eileen Bogweh Nchanji, Imogen Bellwood‐Howard, Nikolaus Schareika, Takemore Chagomoka, Johannes Schlesinger, D. Rodríguez Torres Axel, Glaser Rüdiger · International Journal of Agricultural Sustainability · Ghana (Tamale)
An ethnographic study in Tamale, Northern Ghana, assessed the sustainability of urban vegetable production between 2008 and 2014. While urbanization increased cultivation of profitable vegetables like cabbage, the practice involved irrigation with grey and wastewater and high pesticide use, posing health and environmental hazards. Industrial growth reduced open space urban agriculture by 8.7%, leading farmers to use interstitial spaces and peri-urban fringes, indicating a dynamic but not yet sustainable production system.
Contamination & food safetyHealthEconomicsClimate changePolicyOrganic cycleUrban Agriculture: Environmental, Economic, and Social Perspectives
2016Steve G. Hallett, Lori Hoagland, Emily Toner · Horticultural reviews · Global
This chapter discusses urban agriculture from economic, environmental, and social perspectives, acknowledging differences between urban agriculture in small and large cities, as well as the Global North and South. Urban farms and community gardens can have both positive and negative environmental impacts, such as reducing or increasing energy consumption, improving water infiltration, and beautifying neighborhoods, or producing odors and contaminating water. The chapter also attempts to frame policy recommendations that might help guide urban agriculture's development.
Contamination & food safetyEconomicsClimate changePolicyCommunityWhat are the impacts of urban agriculture programs on food security and nutrition in low and middle income countries
2013Robert Garey Stewart, Marcel Korth, Laurenz Langer, Shannon Rafferty, N Rebelo Da Silva · · Global
This paper is a protocol for a systematic review on the impacts of urban agriculture programs on food security and nutrition in low and middle-income countries. It notes potential disadvantages of urban agriculture, including contamination, spread of diseases, depletion of water supplies, soil erosion, and health risks from pesticides. The review aims to identify, appraise, and synthesize evidence on these impacts comprehensively and transparently, given that the existing evidence-base is not well understood.
Contamination & food safetyFood sovereignty & justiceHealthClimate changeEconomicsThe role of green roof technology in urban agriculture
2011Leigh Whittinghill, D. Bradley Rowe · Renewable Agriculture and Food Systems · Global
Urban agriculture faces limitations including competition for space, lack of formalized land use rights, and health hazards from food contamination. Green roof technology is proposed as a method to alleviate these issues, potentially reducing the use of contaminated land and water at ground level. However, for large-scale implementation, installation costs must be reduced, roof weight limitations assessed, and appropriate management practices developed.
Contamination & food safetyDIYHealthPolicyClimate changeOpportunities and Challenges of Urban and Peri-Urban Agriculture in Niamey, Niger
2008Sophie Graefe, Eva Schlecht, Andreas Buerkert · Outlook on Agriculture · Niger (Niamey)
Semi-structured interviews with 130 households in Niamey, Niger, characterized urban and peri-urban agriculture (UPA) and assessed resource use. The study found high use of livestock manure and indiscriminate use of nutrient-loaded wastewater for irrigation, leading to significant nutrient surpluses in UPA gardens. Initial calculations suggested large gaseous emissions of nitrogenous compounds and and leaching of nitrogen, phosphorus, and potassium to groundwater.
Contamination & food safetyPeri-urban agricultureFood sovereignty & justiceHealthClimate changeEconomicsFaecal bacterial indicators removal in various wastewater treatment plants located in Almendares River watershed (Cuba)
2008Tamara García–Armisen, Josué Prats, Yociel Marrero, Pierre Servais · Water Science & Technology · Cuba (Havana)
The Almendares River in Havana, Cuba, receives wastewater from over 200,000 inhabitants, resulting in very poor microbiological water quality downstream due to high faecal bacterial indicators (FBIs). This water is used for urban agriculture and recreation, despite not meeting microbiological standards. This study compared FBI removal in three wastewater treatment plants (WWTPs): a conventional facility, a constructed wetland (CW), and a solar aquatic system (SAS). Natural systems (CW and SAS) showed approximately two log units higher FBI removal efficiency than the conventional plant. The large conventional WWTP was found to have a negative impact on the river's microbiological quality.
Contamination & food safetyHealthCommunityClimate changeEl riego con aguas de mala calidaden la agricultura urbana. Aspectosa considerar. I. Aguas salinas o alcalinas
2007F Ortega Sastriques, Rosa Orellana Gallego · Revista ciencias técnicas agropecuarias · Global
In many cities, the high price and limited availability of potable water necessitate considering irrigation with poor quality water, such as saline or alkaline waters, in urban agriculture. This paper considers aspects of irrigation with poor quality water, including risks like contamination.
Contamination & food safetyClimate changeEconomics