Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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Critical findings
590 results(19 / 24)
Irrigated vegetable farming in urban Ghana: a farming system between challenges and resilience
2014Pay Drechsel, Andrew Adam‐Bradford, Liqa Raschid-Sally, Drechsel, Pay, Adam-Bradford, A., Raschid-Sally, Liqa · AgEcon Search (University of Minnesota, USA) · Ghana
This chapter introduces urbanization in West Africa, particularly Ghana, the general role of urban agriculture, and the common use of polluted irrigation water. It focuses on irrigated smallholder vegetable production, reflecting on the key challenges, dynamics, and resilience of this farming system.
Contamination & food safetyCommunityHealthEconomicsPeri-urban agricultureEffect of an After-School Garden Club Program on Elementary Students.
2014Maggie Caroline McGriff · Journal of the Arkansas Academy of Science · United States
This study investigated whether three elementary school garden club programs influenced students' attitudes and behaviors regarding fruit and vegetable consumption. Quantitative analysis using pretest and posttest questionnaires found non-significant results, indicating no significant effect on participants' perceptions of fruit and vegetable consumption. Qualitative analysis of participant interviews also showed mostly non-significant changes in healthy eating, although participants reported positive experiences in other aspects like respect for nature and enjoyment of activities.
Limited or null effectFood educationHealthCommunityRisques de fièvres typhoïdes et paratyphoïdes liés à l’utilisation des eaux usées en agriculture urbaine et périurbaine : cas du maraîchage dans la ville de Parakou (Bénin)
2014Joseph Agossou, Léonard Afouda, Julien Didier Adédémy, Alphonse Noudamadjo, Catherine N’da Tido, Emanliikpon Sylvain Ahohoui, Pierre G. Tovihoudji, Farouk Mazou, Benjami Fayomi, Simon Akpona, Sikiratou Adéothy-Koumakpaï, B Ayivi · Environnement Risques & Sante · Benin (Parakou)
This study analyzed the bacteriological and parasitic load in wastewater and market garden products from five major production sites in Parakou, Benin, where farmers use wastewater for irrigation. High concentrations of fecal coliforms, Escherichia coli, Salmonella enterica, Shigella spp., Entamoeba coli, Giardia intestinalis cysts, and helminth eggs were found in irrigation water, vegetables, and farmers' stools. The use of wastewater resulted in high contamination of vegetables, particularly cabbage, large lettuce, and carrot leaves, by fecal coliforms, Salmonella enterica, and Escherichia coli.
Contamination & food safetyHealthPeri-urban agricultureStudy of the influence of environmental factors on the occurrence of Balantidium coli cysts in an urban aquatic system in Cameroon
2014Gideon Aghaindum Ajeagah, Yaka Diane Armelle Moussima · Journal of Ecology and the Natural Environment · Cameroon
A study in an urban stream in Yaoundé, Cameroon, characterized Balantidium coli cysts and evaluated environmental factors influencing their dispersal. Round (825 ± 610 cysts/L) and oval (246 ± 300 cysts/L) cysts were found. High abundances of cysts were observed in stations along a piggery effluent near a major market, with higher densities recorded during the short rainy season. The lowest cyst densities were found upstream and downstream.
Contamination & food safetyHealthAssessment of the Microbiological Quality of Vegetable from Urban Community Gardens in Korea
2014Jin‐Won Kim, In‐Wook Choi, Won-Seok Na, Enkhjargar Baljii, Yong-Man Yu, Young Nam Youn, Young‐Ha Lee · Journal of Food Hygiene and Safety · South Korea (Seoul)
From September to October 2012, 530 samples of nine vegetable types were collected from 11 urban community gardens in Seoul to assess their microbiological quality. Mean total aerobic bacteria and coliforms were detected at 6.3 log CFU/g and 4.3 log CFU/g, respectively, with coliforms found in 67% of samples and E. coli in 2.3%. While foodborne pathogens were not detected, the presence of coliforms and E. coli indicates room for improvement in microbiological safety.
Contamination & food safetyCommunityHealthAssessment of Heavy Metal Pollution in Urban Agricultural Soils of Jilin City, China
2014Qiang Liu, Jingshuang Liu, Qicun Wang, Yang Wang · Human and Ecological Risk Assessment An International Journal · China (Jilin City)
This study investigated heavy metal pollution levels by collecting 50 soil samples from urban vegetable fields in Jilin City, China. Mean contents of Pb, Cr, Cu, Ni, Zn, and Cd were higher than their corresponding natural background values. However, the distribution of comprehensive pollution index values indicated that concentrations of these heavy metals in most agricultural fields did not exceed baseline values affecting agricultural production safety and human health according to China's soil environmental quality standard, concluding insignificant contamination by these metals in Jilin City.
Contamination & food safetyHealthParticipatory Budgeting in the United States: A Preliminary Analysis of Chicago’s 49th Ward Experiment
2014LaShonda M. Stewart, Steven A. Miller, R. W. Hildreth, Maja V. Wright-Phillips · New Political Science · United States (Chicago)
A preliminary analysis of Chicago's 49th Ward, the first participatory budgeting experiment in the United States, examined whether it resulted in different budgetary priorities and met social justice outcomes. Citizens chose projects classified as low priority by research literature, and while there was no clear pattern of projects only in affluent areas, geographic clustering was evident. Select areas received projects like community gardens, while others were limited to infrastructure repairs, indicating mixed social justice outcomes.
Equity & displacementPolicyCommunityEconomicsHealthHeavy Metals and Physicochemical Properties of Soils in Kano Urban Agricultural Lands
2014UM Dawaki, A. U. Dikko, SS Noma, U. Aliyu · Nigerian Journal of Basic and Applied Sciences · Nigeria
A study investigated the total, exchangeable, and soluble concentrations of heavy metals (Cu, Cr, Ni, Zn, Pb, Cd) in urban agricultural soils along three rivers (Challawa, Jakara, and Watari) in Kano, Nigeria. Cadmium concentrations at Jakara and Challawa exceeded maximum allowable concentrations in soils. Heavy metal concentrations were found to be significantly higher in areas irrigated with industrial and domestic sewage (Challawa and Jakara) compared to the control site (Watari).
Contamination & food safetyHealthPeri-urban agricultureThe Historical Development of the School Garden Movement in the USA
2014Green Hope, River Edge, New Jersey 07661, USA., Hye Jin Keum · Journal of people, plants, and environment · United States
The philosophical background and historical development of the school garden movement in the USA were examined. The movement demonstrated a process of formation, decline, and revival. It began to diminish after World War I and was pushed to extinction by technological advancements in the 1950s, before resurging from the 1990s to address childhood obesity, nature-deficit, and improve academic achievements.
Limited or null effectFood educationHealthPolicyHeavy metal content of selected African leafy vegetables planted in urban and peri-urban Nairobi, Kenya
2014A. N. Mutune, M. A. Makobe, Mary Abukutsa‐Onyango · African Journal of Environmental Science and Technology · Kenya (Nairobi)
This study analyzed heavy metal content in 10 common African leafy vegetables and their rhizosphere soils from 25 sites along Nairobi Rivers, Kenya. While soil metal concentrations were generally within WHO/FAO permissible levels, except for some cadmium instances, all metals except copper in vegetables exceeded recommended limits at a few sites. This indicates potential heavy metal absorption from industrial and domestic effluent.
Contamination & food safetyHealthPeri-urban agricultureA Scoping Review of Heavy Metal Contamination in Urban Market Vegetables and Biomarker Evidence of Consumer Exposure in Kinshasa, Democratic Republic of the Congo: An African Perspective, 2014
2014Abdirahman Osman Warsame, Fadumo Abdi Mohamud, Ahmed Hassan Ali · Zenodo (CERN European Organization for Nuclear Research) · Democratic Republic of the Congo (Kinshasa)
This scoping review synthesized evidence on the association between heavy metal contamination in vegetables sold in Kinshasa's urban markets, Democratic Republic of the Congo, and human biomarkers of consumer exposure. Available evidence consistently showed that vegetables, particularly leafy greens, from Kinshasa markets contained elevated levels of lead and cadmium, often exceeding international safety limits. However, studies directly linking vegetable contamination with human biomarkers are notably scarce, suggesting a potential exposure pathway but not establishing definitive causation.
Contamination & food safetyHealthUrban–rural linkageHarmony Park: A Decision Case on Gardening on a Brownfield Site
2014Ashley S. Harms, DeAnn Presley, Ganga M. Hettiarachchi, Chammi P. Attanayake, Sabine Martin, Steven J. Thien · Natural sciences education · United States (Kansas City)
This case study examines the decision faced by Mr. John Holloway in Harmony Park, Kansas City, MO, regarding establishing a community garden on a vacant brownfield site in 2009. Concerns arose about soil contaminants on the site, leading to a dilemma about the potential harm versus benefits of gardening in a food desert. The case requires students to evaluate environmental, agronomic, human health, social, and economic issues related to urban soil contamination.
Contamination & food safetyCommunityHealthGrowing Roots: Gardening as a means to mitigate urban poverty and its symptoms
2014Maeve Bassett · Fordham Research Commons (Fordham University) · Global
Urban gardens are advertised as a solution to limited food access in impoverished areas, but they are not productive enough to globally affect food production and the environment. However, for surrounding communities, urban gardens are cheap and effective solutions for many problems associated with poverty and food deserts, such as obesity, education, social interactions, income supplementation, health issues, dangerous neighborhoods, and refugee assimilation.
Limited or null effectWelfareHealthCommunityEconomicsAn Approach to Assessing Multicity Implementation of Healthful Food Access Policy, Systems, and Environmental Changes
2014Laura Oliven Silberfarb, Sonja Savre, Gayle Geber · Preventing Chronic Disease · United States (Hennepin County)
Hennepin County assessed the extent to which 41 cities were engaged in making policy, systems, and environmental (PSE) changes to increase residents' access to healthful food. Results revealed that some cities, particularly those with higher resident demand for healthful food, are making nationally recommended PSE changes, such as sponsoring farmers markets. However, cities moved more slowly to make changes in areas with perceived negative cost consequences or lesser public demand, such as parks and recreation vending.
Economic viabilityPolicyHealthCommunityEconomicsChartering Worcester's Success
2014Benjamin Drury, Renee Laliberte, Jared Watson, Connor Wilgress · Digital WPI · United States (Worcester)
The city of Worcester, MA, faces health issues due to economic instability and low access to affordable healthy food. While urban farming has the potential to address these problems, the city lacks an effective policy.
Governance failureHealthEconomicsPolicyFood sovereignty & justiceLet it grow: urban gardens and food access in Pittsburgh, Pennsylvania
2014Katherine Luke · D-Scholarship@Pitt (University of Pittsburgh) · United States (Pittsburgh)
This study used a door-to-door survey in six Pittsburgh, Pennsylvania neighborhoods to measure the impact of community gardens on residents' perceptions of food access. It found that many gardeners do not consider gardening to improve their personal food security, and despite geographic proximity and expressed interest, community garden participation rates were low. Social and emotional barriers, including lack of gardening knowledge and racial prejudice, appeared to prevent residents from becoming active participants.
Limited or null effectCommunityFood sovereignty & justiceHealthWelfareUrban Gardening: Managing the Risks of Contaminated Soil
2013Rebecca Kessler · Environmental Health Perspectives · Global
As interest in urban agriculture grows, researchers are working to manage the risks of contaminated urban soils. The focus is on maximizing the benefits of urban gardening while minimizing the potential hazards associated with soil contamination.
Contamination & food safetyHealthWhat 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 changeEconomicsHealth and Environmental Hazards Posed by Urban Livestock Keeping in Enugu Urban, Nigeria: Implication for Climate Change Mitigation
2013AN Asadu, EM Igbokwe, JM Chah, IA Enwelu · Journal of Agricultural Extension · Nigeria (Enugu)
This study investigated farmers' perceptions of health and environmental hazards from urban livestock keeping in Enugu Urban, Nigeria, interviewing 75 heads of households. While all respondents were aware of general health and environmental implications, only 4.0% knew livestock could cause climate change. Identified environmental issues included crop destruction (89.3%), urban filth (89.3%), and noise (88.0%), while health issues included disease spread (50.7%), accidents (46.7%), and bad smell (86.7%).
Environmental trade-offsHealthClimate changeCommunity“They don't garden here”: NGO constructions of Maya gardening practices in Belize
2013Douglas Carl Reeser · Development in Practice · Belize
An analysis of an NGO school garden program in two Q'eqchi' Maya communities in southern Belize revealed challenges faced by NGOs. These challenges included issues of legitimacy, cultural appropriateness, self-interest, and constructed conceptions of their target communities, raising questions about the priority between autonomous, healthy communities and the preservation of the NGO program.
Governance failureFood educationHealthCommunityWelfareNIVELES DE CADMIO, PLOMO, COBRE Y ZINC EN HORTALIZAS CULTIVADAS EN UNA ZONA ALTAMENTE URBANIZADA DE LA CIUDAD DE LA HABANA, CUBA
2013Susana Olivares Reumont, Damarys García Céspedes, Lázaro Lima Cazorla, Israel Saborit Sánchez, Axel Llizo Casals, Pedro Pérez Álvarez · Revista Internacional de Contaminación Ambiental · Cuba (Havana)
This study investigated levels of Cu, Pb, Cd, and Zn in soils and vegetables from 17 urban agriculture farms around the "Calle 100" landfill in Havana, Cuba, during 2006-2007. Findings showed that 35% of soils exceeded typical Cuban agricultural ranges for Zn, and 52% for Pb. Critically, 23% of soils surpassed phytotoxic and international limit levels for Pb, and 12.5% of vegetable samples exceeded Cuban maximum permissible limits for Pb in food for human consumption. The results indicate a need for strict monitoring of horticultural crops in the area due to contamination.
Contamination & food safetyHealthUrban–rural linkagePolicyTelling Consumers, Gardeners, and Farmers about the Possible Risk of Rat Lungworm in the Local Food Supply in Hawai‘i
2013James R. Hollyer · PubMed Central · United States
This article discusses the potential risk of rat lungworm (Angiostrongylus cantonensis) in Hawai‘i's local food supply, which can cause eosinophilic meningitis if ingested by humans. While the statistical risk is extremely low compared to other foodborne agents, two individuals in Hawai‘i developed serious eosinophilic meningitis in late 2008 after consuming insufficiently washed local produce. The article highlights the challenge of informing the public about this rare but potentially serious disease, especially amidst efforts to promote local produce and school gardens.
Contamination & food safetyHealthFood educationHeavy Metal Tolerance of Fungus Isolated from Soil Contaminated with Sewage and Industrial Wastewater
2013Shazia Iram, Ayesha Zaman, Zaiba Iqbal, Rabia Shabbir · Polish Journal of Environmental Studies · Global
This study screened soil samples from peri-urban agricultural areas to investigate heavy metal contamination and identify heavy metal-tolerant fungi. Results showed that the majority of isolated fungi were resistant to lead (Pb) and chromium (Cr). Among the strains, Aspergillus niger was the most tolerant to Pb with an MIC of 600 mg/l, and Aspergillus flavus was the most tolerant to Cr with an MIC of 400 mg/l.
Contamination & food safetyPeri-urban agricultureHealthBioaccessibility of heavy metals and risk assessment in urban gardens of Madrid
2013Marcelo Ortega Romero, Juan Mingot Marcilla, María Jesús García Martínez, Eduardo de Miguel, Miguel Izquierdo‐Díaz, Amaya Gómez · · Spain (Madrid)
This study evaluated the potential health risk from trace elements in urban garden soils in Madrid, Spain. Thirty-six composite soil samples were collected from the top 20 cm of six urban gardens, and concentrations of cobalt, chromium, copper, nickel, lead, and zinc were determined. The findings indicated that urban soils are significantly enriched in trace elements relative to background levels, suggesting a potential health risk.
Contamination & food safetyHealthCommunityFood sovereignty & justicePollution as a threat factor to urban food security in metropolitan Kano, Nigeria
2013Mansur Usman Dawaki, Abubakar U. Dikko, S. S. Noma, Umar Aliyu · Food and Energy Security · Nigeria
This study evaluated pollution risks to food security from urban agriculture in Kano, Nigeria, by sampling soil, water, and lettuce from two wastewater-irrigated sites (Challawa, Jakara) and a control site (Watari). Results showed all sites were contaminated with Cu, and the domestic wastewater site was slightly polluted with Pb and excessively polluted with Cd and Cr. Metal levels in irrigation waters exceeded recommended thresholds, and plants at the domestic wastewater site accumulated metal concentrations (Pb=26.21 mg/kg, Cd=1.03 mg/kg, Cr=28.63 mg/kg, Cu=2.66 mg/kg) that exceeded allowable limits in vegetables, indicating a human ingestion risk.
Contamination & food safetyHealthFood sovereignty & justice