Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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A decision-analysis framework for school garden investments in Vietnam: evaluating trade-offs for nutrition, biodiversity, and economic outcomes
2026Cory Whitney, Thi Thu Giang Luu, Johannes Kopton, Eike Luedeling · Humanities and Social Sciences Communications · Vietnam
This study developed a decision analysis framework to optimize school garden interventions in Vietnamese public and private schools, evaluating their effects on child health, biodiversity, and economic outcomes across five investment scenarios. Results show that passive gardens consistently offer greater biodiversity and health benefits, whereas STEM gardens encounter financial and operational barriers, especially in public schools. The findings highlight significant financial constraints in public schools compared to private ones, revealing critical trade-offs among economic, biodiversity, and health outcomes.
Economic viabilityFood educationHealthBiodiversityEconomicsMapping the InvisibleLandscape of Pesticides andAdjuvants in Peri-Urban Agricultural Waterways of the Megacity Shanghai
2026L Cao, Jingsheng Wang, Yanbin Zhao (1549129), Shuping Zheng, Ruike Pan, Ruiqi An (19738761), Xuhui Yue, Yifan Wang (380120), Jianan Li (290570), Yan Liu (25061), Jie Wang (16762), Peng Wang (34436), Yangmei Mo, Ning Pan (186987), H. Z. Shi, Jiayin Dai (218672), Kun Zhang (108291) · Figshare · China (Shanghai)
An integrated assessment of agrochemical contamination in Shanghai's peri-urban agricultural surface waters across 193 sites revealed exceptionally high chemical diversity and mixture complexity. 91 pesticides and 263 formulation adjuvants were widely detected, with adjuvants showing comparable detection frequencies and response intensities to pesticides, indicating they are a major, underappreciated component of agrochemical pollution. In vivo zebrafish embryo assays showed that representative pesticides and adjuvants induced adverse developmental effects at environmentally relevant concentrations, identifying peri-urban agriculture as a critical source of complex agrochemicals.
Contamination & food safetyPeri-urban agricultureHealthBuilding Capacity for Food Justice: The Multifaceted Benefits of an Urban Home Gardening Intervention
2026Taylor Swenski, Jocelyn Smith Carter, Marjorie Kersten, Elizabeth Berkeley, K. Varner, Howard Rosing · Ecology of Food and Nutrition · United States (Chicago)
The "Grow Your Groceries Home Garden" intervention program, implemented in Chicago, United States in 2022, aimed to improve food access in food-insecure communities. A longitudinal investigation over two annual cycles surveyed 46 participants, complemented by focus groups with 9 participants, to evaluate food access, cost savings, health, and socioemotional outcomes. While results on improved gardening confidence over time emerged non-significant, participants reported increased food access, cost savings, healthier eating, stress reduction, and strengthened relational bonds.
Limited or null effectHealthWelfareCommunityFood educationHeavy metal accumulation in Amaranthus hybridus and Ocimum gratissimum cultivated on automobile workshop soils in Ekiti Nigeria and associated human health risks
2026Amos Tomiwa Afolabi, Bridget O. Odiyi, Oluwasheun Johannah Ojeniyi · Discover Soil. · Nigeria (Ado-Ekiti)
A study in Ado-Ekiti, Nigeria, investigated heavy metal accumulation in Amaranthus hybridus and Ocimum gratissimum grown on soils from two automobile workshops. A. hybridus accumulated higher metal concentrations than O. gratissimum, with stems showing greater accumulation than leaves. While non-carcinogenic and total cancer risks were within acceptable limits, children showed higher vulnerability, indicating that continuous monitoring and soil remediation are essential for sustainable urban agriculture in these contaminated areas.
Contamination & food safetyHealthSchool gardens as socio-ecological learning systems: supporting adolescent food security and resilience
2026L. Lue, K. Reis, H. Kanasa, S. Rutherford, C. Desha · Environmental Education Research · Global
A review of 22 studies (2001-2024) across six countries, primarily the US and Canada, examined how high school garden programs support adolescent food security and resilience. Findings indicated contributions across multiple socio-ecological levels, but uneven implementation significantly constrained their overall impact. Specifically, opportunities for shared decision-making were limited, and short-term, inconsistent support for policy, funding, and governance structures restricted long-term effectiveness.
Limited or null effectFood educationHealthCommunityFood sovereignty & justicePERCEPTIONS ON URBAN-BASED GARDENING IN THE CITY OF ISABELA, BASILAN, PHILIPPINES
2026Bendijo, S.A., Rebuza, A.O., Pedillon, J.M., Amilbahar, G.V., Tabal, E.P. · AgEcon Search (University of Minnesota, USA) · Philippines
This study in Isabela City, Philippines, explored community perceptions of urban gardening (UG). While awareness was linked to food security and sustainability, and perceived benefits included health, cost savings, and social cohesion, the adoption of UG was hindered by a lack of interest and resource constraints. Preferred UG forms like rooftop gardens and specific vegetables indicated aspirations for cost savings and nutrient content, but obstacles remain.
Economic viabilityCommunityFood sovereignty & justiceHealthEconomicsWastewater reuse in urbanperi-urban agriculture of Dakar: Salmonella species contamination in water and market garden produce
2026Ndiaye Awa, Diallo Ibrahima, Dieng Amadou, Ba Ibrahima, Sembene Mbacke · African Journal of Environmental Science and Technology · Senegal
This study in Dakar, Senegal, assessed Salmonella contamination in irrigation water and lettuce across three urban agricultural sites. Sites using wastewater (Pikine and Patte d’Oie) showed high Salmonella prevalence in water (70-90%) and vegetables (20-80%), while a tap water site (Lendeng) had no contamination. Market-sourced lettuce also tested positive (28.57%), indicating public health risks from untreated wastewater use.
Contamination & food safetyHealthPeri-urban agricultureOrganic cycleA scoping review of the impact of urbanization on food security in Sub-Saharan Africa
2026Alemseged Gerezgiher Hailu, daniel girmay, samuel ataklti · Discover Food · Sub-Saharan Africa
This scoping review analyzed 155 sources (2009–2024) on urbanization's impact on food security in Sub-Saharan Africa. Findings showed rapid urban expansion converted 30% of peri-urban agricultural land in some regions, increasing dependence on imported staples, and low-income households spend 60–80% of income on food. A policy gap was identified, with only 12% of countries having supportive policies and 19% of cities designating land for farming.
Environmental trade-offsFood sovereignty & justiceEconomicsPeri-urban agricultureClimate changeHealth“Regain the park from the Bad People”. Symbolic boundaries and urban exclusion in Ecatepec
2026Miguel Ángel Monteverde-Ávalos · Alteridades · Mexico (Ecatepec)
An ethnography of a dispute over a small community garden in a working-class neighborhood in Ecatepec, Mexico, revealed that internal socialization processes establish thresholds of respectability, leading to classifications that reproduce differential access to public space. The study found that these classifications result in the unequal distribution of spatial resources and contribute to the reproduction of an exclusionary urban order.
Equity & displacementCommunityPolicyHealthInsurgent Geographies and the Problem of Violence: Lessons From Seattle's Capitol Hill Autonomous Zone
2026Alexei Anisin · Peace & Change · United States (Seattle)
This study analyzed the Capitol Hill Autonomous Zone (CHAZ) in Seattle, which emerged in June 2020 and lasted 24 days, functioning as an urban hub for mutual aid and urban farming. The research, using randomly sampled Fire Department reports, found that CHAZ had significantly higher emergency response rates and incident variability compared to adjacent areas. The zone was dismantled due to outbreaks of violence, including five shootings, two deaths, sexual assaults, and arson, indicating a failure to address communal safety.
Governance failureCommunityPolicyHealthUrban Agriculture Policy and Household Food Security in Jos Metropolis, Nigeria
2026N. I. Odeh, A. T. OGAH, O. C. Odeh · Journal of African Resilience and Advancement Research · Nigeria
This study in Jos Metropolis, Nigeria, examined the urban agriculture (UA) policy framework and household food security using mixed methods, including interviews and a household survey. Findings revealed the absence of a dedicated UA policy, with UA regulated indirectly by general agricultural and land-use policies. Only 20.7% of households were food secure, while 79.3% experienced some level of food insecurity.
Governance failurePolicyFood sovereignty & justiceHealthEconomicsUsage de pesticides interdits et non homologués en maraîchage périurbain à Kinshasa : cas de Kimwenza et Ndjili Cecomaf
2026Réné Kasende Disashi, Belloty Mundadi Ngeteke, Dorcas Sola Tabitha, Prescilia Mabubu Pembe, Fanny BAKOMBA KIKOBO, Denise OKITO WIKANU, Esther MPIANA MUKANIA, Sarah Kinsona Bombili, Esther Kimpala Karuna, Clément Munganga Kilingwa, Rosie Mubindukila Nzamba · European Scientific Journal ESJ · Congo (Kinshasa)
A study conducted from June 10 to July 20, 2025, in peri-urban market gardens of Kimwenza and Ndjili Cecomaf in Kinshasa, Democratic Republic of Congo, surveyed 68 market gardeners on the use of prohibited and unauthorized pesticides. The findings revealed an alarming reliance on informal supply channels, with six out of 27 identified pesticides being formally prohibited. Despite 94.3% of gardeners acknowledging risks, only 9.6% used full protective equipment, and 32.7% took no precautions.
Contamination & food safetyPeri-urban agricultureHealthPolicyTrace metal extractability and bioaccessibility in urban soils
2026María Roo, Cecilia Herbón, Juan Pedro Martín‐Sanz, María Teresa Barral, Remigio Paradelo Núñez · Journal of Soils and Sediments · Spain (Santiago de Compostela)
This study analyzed the chemical extractability and bioaccessibility of five trace metals (Pb, Cu, Zn, Ni, Cr) in 55 urban soils from Santiago de Compostela, Spain, across various land uses. The availability of trace metals in these soils was found to be very low. Plant-available and bioaccessible Cu and Zn were higher in urban garden soils compared to other uses, supporting hypotheses that Cu, Pb, and Zn originate from anthropogenic pollution.
Contamination & food safetyHealthOrganic cyclePhysicochemical 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 cycleHeat exposure and agricultural workers' health: A global systematic review with implications for Peri-urban and semi-urban Southeast Asia
2026Nu Quy Linh Tran, Cordia Chu, Hai Phung, Son Nghiem, Han Le, Tuyet-Hanh Tran, Dung Phung · Urban Climate · Global
This global systematic review analyzed 97 studies from 27 countries on heat exposure and agricultural workers' health. The majority of studies (54.6%) were from North America, with Africa, South America, and Asia significantly underrepresented. Common health outcomes included self-reported heat-related illnesses (27.8%) and kidney issues (20.6%), but cardiovascular health, mortality, and mental well-being remain significantly understudied. In Southeast Asia, urbanization increases heat risk for peri-urban agricultural workers, as these zones often lack infrastructure, healthcare, and regulatory protections, exacerbating exposure to extreme heat, particularly from the urban heat island effect.
Environmental trade-offsHealthClimate changePeri-urban agricultureFruit-waste biochar for immobilizing potentially toxic elements in contaminated agricultural soils and reducing vegetable-related human health risks: A systematic review.
2026Nelson Joseph Msacky, Amelia Alfred, Oscar Punguti, Edson Protas, Iddi Mapande, Novatus, Shukrani Phillip, January G Msemakweli · Open MIND · Global
This systematic review aims to synthesize current scientific evidence on the effectiveness of fruit-waste-derived biochar in immobilizing potentially toxic elements (PTEs) in contaminated agricultural soils. It will evaluate how fruit-waste biochar reduces metal bioavailability, plant uptake, and associated human health risks from vegetable consumption. The review also seeks to identify which fruit wastes are used as biochar feedstocks and which biochar properties and production conditions influence immobilization performance, noting that existing research is fragmented.
Contamination & food safetyCompostOrganic cycleHealthPeri-urban agricultureExfoliating microplastics intensifies heavy metal uptake and physiological stress in wastewater-irrigated chili plants
2026Hajra Kanwal, Qudrat Ullah, Waqas Haider, Mujahid Farid, Zaki Ul Zaman Asam, Muhammad Zubair, Abdulrahman Alasmari, Sarah Owdah Alomrani, Muhammad Munir, Shafaqat Ali · Open MIND · Global
This study investigated the interactive effects of contaminated wastewater with cadmium, mercury, lead, and polyethylene microplastics from exfoliating personal care products on chili plants (Capsicum annuum). Plant growth parameters were reduced by 71–82% at high wastewater and microplastic levels, accompanied by significant losses in photosynthetic pigments and soluble proteins. Oxidative stress markers increased by 124–230%, and heavy metal uptake was significantly increased, facilitated by microplastics.
Contamination & food safetyPeri-urban agricultureHealthCensored-Data-Aware Screening of Hazardous Metal(loid)s in Wild Mushrooms from Urban and Peri-Urban Green Spaces: Multielement Fingerprints and Adult Exposure Assessment
2026Antonio Peña‐Fernández, M. Carmen Lobo, María de los Ángeles Peña, Guillermo Torrado Durán, Mark D. Evans, Tiziana Sgamma, Tomás Cámara Pastor, Gurminderjeet S. Jagdev · Journal of Xenobiotics · United Kingdom
This study evaluated hazardous metal(loid)s in 121 wild mushroom fruiting-body units collected from urban and peri-urban green spaces in Leicester/Leicestershire, UK. Copper, manganese, and zinc were detected in all units, while cadmium and lead were found in 117/121 and 106/121 units respectively, indicating the widespread presence of these contaminants. Taxon-level profiles showed marked heterogeneity, and under a 300 g fresh-weight week−1 consumption scenario, cadmium represented 47.3% of the EFSA tolerable weekly intake in the pooled edible population and 50.9% in Agaricus bitorquis.
Contamination & food safetyHealthUrban agriculture in Dar es Salaam, Tanzania: A systematic review of practices, challenges and sustainability
2026hawamkwela@yahoo.com MKWELA · Social Sciences & Humanities Open · Tanzania (Dar es Salaam)
This systematic review analyzed 42 studies from 1990 to 2024, examining urban agriculture practices, scale, socio-economic contributions, health and environmental impacts, and governance constraints in Dar es Salaam, Tanzania. Urban agriculture involves 36,000–60,000 households cultivating 1,800–6,000 hectares annually, supplying 90% of city vegetables, providing 20–70% of household income, and employing over 100,000 people. However, 85–95% of farmers lack secure land tenure, 78% of vegetable samples exceed WHO E. coli limits, and 90% of produce is sold informally with high post-harvest losses of 20–40%.
Contamination & food safetyFood sovereignty & justiceEconomicsHealthPolicyLegacy contamination in Chicago urban park soils: Spatial patterns, socioeconomic disparities, and implications for urban agriculture
2026Jenkins E. M., Heafner H., Montgomery J., Soumano V., Paltseva A. A. · iScience · 米国・シカゴ
Portable X-ray fluorescence measurement of seven trace elements in 233 topsoil samples from five Chicago parks. Lead, arsenic, copper, zinc and chromium exceeded Illinois background levels in 89–100% of samples; arsenic exceeded EPA screening levels in 94% of samples and lead in 7%. Contamination was higher at parks farther from the city centre — Douglass and Humboldt parks, in predominantly minority, lower-income neighbourhoods — than at Cottontail, Grant and Webster. Principal-component analysis identified an anthropogenic signature (PC1, 51.7%) driven by Pb, Zn, Cu and As and a geogenic signature (PC2, 17.0%) associated with Mn and Ni. Areas of Douglass and Humboldt parks were classified as not safe for gardening in native soil; Webster as safe with minor restrictions. The authors conclude that park-soil contamination follows socioeconomic gradients, reflecting environmental injustice and a need for targeted remediation.
Contamination & food safetyHealthPolicyCommunityThe Role of Urban Planning Decisions in the Formation of Food Deserts: From Structural Causes to Justice-Oriented Holistic Strategies
2026Büşra Gül KARACA, Duygu GÖKCE · Kent Akademisi · Global
This study comprehensively examined 26 scientific studies published between 2008 and 2025 from a spatial perspective, demonstrating that food desert formation is a multi-layered structural problem directly related to spatial planning processes and urban planning decisions, rather than individual socioeconomic deficiencies. The literature review revealed that food deserts are systematically produced by planning-based practices such as single-function zoning decisions, single-centered urban development models, and the absence of urban agriculture in legislation, not solely by a lack of physical access. Access disadvantages persist, particularly in peripheral neighborhoods and areas with high concentrations of low-income groups, and a significant gap exists in developing applicable policies for medium-sized cities due to the literature's focus on metropolitan areas.
Equity & displacementPolicyHealthEconomicsWelfareUrban mushroom farming for future foods: safety considerations and nutritional benefits
2026Malsha Samarasiri, Wei Ning Chen · Sustainable Microbiology · Global
This review discusses advances in urban mushroom farming, its integration with computer-based technologies, safety considerations, and the potential of mushrooms and mycelium-based foods as future foods. Key safety considerations for urban mushroom farming systems include biological hazards, mycotoxins, heavy metal accumulation, and potential allergenicity. Macrofungal mycelium-based foods may be regarded as novel foods and require evaluation under novel food safety regulations.
Contamination & food safetyFood sovereignty & justiceHealthCommunityDigital agricultureAvaliação parasitológica e microbiológica de hortaliças submetidas à sanitização com hipoclorito de sódio
2026Threice Natália Ribeiro Pexe, Julia Yumi Muraoka, Fabiana Cristina Donofrio, Cibele Bonacorsi · Scientific Electronic Archives · Brazil (Sinop)
Parasitological and microbiological evaluation was conducted on 40 vegetable samples (watercress, lettuce, chicory, kale, escarole, arugula, parsley) randomly selected from supermarkets, open-air markets, and a community garden in Sinop, Brazil. Before treatment, 12 out of 40 (30.0%) vegetable samples were contaminated with enteroparasites, and all 40 showed microbial growth, with 3 (7.5%) containing Escherichia coli. After sanitization with sodium hypochlorite, parasitic forms were absent, but high initial contamination was confirmed.
Contamination & food safetyHealthCommunityPlastic debris facilitates the survival of multidrug-resistant bacterial pathogens in an urban agricultural environment
2026Michael J. Ormsby, Luke Woodford, James Joseph Mwesiga, Winnie Ernest, Dativa J. Shilla, Daniel Abel Shilla, Richard S. Quilliam · Environmental Pollution · Africa
This study investigated plastic debris as a reservoir for multidrug-resistant (MDR) enteric bacterial pathogens at two peri-urban agricultural sites in Dar es Salaam, Tanzania. Analysis of 140 environmental samples (soil, water, vegetation, plastic debris) showed higher concentrations of culturable pathogens on plastic debris, with presumptive E. coli loads of ~1 × 10^3 CFU per piece. Plastic debris harbored a greater proportion of MDR strains, including E. coli and K. pneumoniae resistant to critically important antimicrobials, indicating that plastic waste facilitates the survival of MDR pathogens and poses health risks.
Contamination & food safetyHealthFood sovereignty & justicePeri-urban agricultureGrowing food and radical hope in Glasgow: A review of The Practice of Collective Escape
2026Rose Jennings · Journal of Agriculture Food Systems and Community Development · United Kingdom (Glasgow)
Helen Traill's book, "The Practice of Collective Escape," presents ethnographic work over six years in Glasgow, Scotland, following two community growing sites. The book critically examines urban agriculture projects as "Petri dishes for individual and community transformation," exploring concepts of inclusion, individual escape, and political activism, and highlighting social complexities and issues of inclusion and exclusion.
Equity & displacementCommunityPolicyHealthFood sovereignty & justice