Research & reports

Ivonne Alonso Durán, Elizabeth Hernández-Álvarez, Ofelia Mortón-Bermea, Javier Castro-Larragoitia, Margarita Collazo-Ortega · Revista Internacional de Contaminación Ambiental · Mexico (Mexico City)

This study investigated the concentrations of 15 metal(loid)s in four vegetables (tomato, onion, chili, lettuce) cultivated in four urban garden locations in Mexico City. While soil analysis showed only vanadium exceeded Mexican limits in one location, various vegetables harvested in the study exceeded international recommended limits for cadmium, mercury, and lead. Lettuce exhibited the highest metal concentrations and transfer factors, with exceptionally high transfer factors for cadmium in lettuce and mercury in tomato.

Deni Ruggeri · ˜The œGeojournal library · Global

This chapter reflects on educational experiences connected to the “Cultivating Public Space” project. Students conceptualized urban agriculture not merely as a collection of physical objects, but as holistic, multifunctional landscapes designed to cultivate biophilia, food justice, public health, and community identity. This approach aimed to celebrate the uniqueness of each locale and co-create new visions of adaptation and transformation.

Nilanjana 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.

Roberta Bulgari, Erdona Demiraj, Calogero Schillaci, Ahlem Tlili, Yushu Xia · Urban Agriculture & Regional Food Systems · Global

This special issue examines urban and peri-urban soil and plant management, highlighting that soil-related factors in urban agricultural systems pose unique challenges. Issues such as soil fertility, soil biodiversity, and soil contamination require further investigation to enhance urban agriculture's contribution to livability. The issue collects studies supporting sustainable soil management and crop diversification, and explores remote sensing and deep learning for soil health monitoring and plant disease detection related to contamination.

Kaline Soares da Costa, Regina da Silva Santos, Carmen Viana Ramos, Ana Karolinne da Silva Brito, Luana Kelle Batista Moura, Liriane Andressa Alves da Silva, Joyce Lopes Macedo, Maria do Carmo de Carvalho e Martins · Somma Revista Cientifica do Instituto Federal de Educação Ciência e Tecnologia do Piauí · Brazil

This cross-sectional study investigated the profile of healthy eating habits among 45 community garden producers in Teresina, Piauí, Brazil, referencing the "10 Steps to Healthy Eating" from the Brazilian Dietary Guidelines. The dietary profile of the producers was considered inadequate; while 97.78% followed the water consumption guideline, only 4.44% followed the guideline for milk/meat/eggs consumption and 6.67% for fruits/vegetables consumption. No participant followed all 10 steps, and a better socioeconomic level was associated with healthier behaviors.

Sabina Rossini Oliva, Rafael López Núñez · Environmental Science and Pollution Research · Spain (Andalusia)

This study evaluated potentially toxic elements (PTEs) in vegetables and topsoils from urban gardens in Seville, Cordoba, Huelva, and a mining area (Riotinto), Spain, comparing them with market and peri-urban samples. Soils in the mining area and cities generally showed higher contamination with As, Cr, Cu, Pb, and Zn compared to other locations. Despite this, all PTE concentrations in vegetables from the studied urban gardens, including those from As-contaminated soils, were below health-based guidance values and market levels (except lettuce), and human health risk assessments indicated safe consumption.

Fatimata Bintou Josiane Diarra, Isidore Juste O. Bonkoungou, Zakaria Garba, Namwin Siourimè Somda, Djifahamaï Soma, Marguerite Edith Malatala Nikiema, Évariste Bako, Souleymane Sore, Natéwindé Sawadogo, Nicolas Barro, Kaisa Haukka · Microorganisms · Burkina Faso (Ouagadougou)

A study in Ouagadougou, Burkina Faso, assessed the occurrence of extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) and Klebsiella spp. (ESBL-K) in 356 samples from lettuce, the environment, and gardeners' stools in market gardens. The overall prevalence of ESBL-producing bacteria was 65.2%. Specifically, ESBL-Ec was found in 25.0% of lettuce samples and ESBL-K in 43.4% of lettuce samples, indicating a high prevalence of these resistant bacteria in urban agriculture.

Valerie A. Ubbes, Karly S. Geller, Sophia Whitesel · American Journal of Health Education · United States

This study developed and validated the Functional Health Literacy Survey for School Gardening (FHLS-SG) using 31 questions administered to 651 children in grades K-4 in the United States. The FHLS-SG demonstrated statistically significant reliability (Cronbach’s alpha 0.69-0.84, test-retest 0.59-0.81). Health literacy showed small to medium mediation effects on relationships between individual, environmental, and behavioral factors in school gardening, particularly between the garden environment and the individual (M = 0.36).

Ankush Mohapatra, Deven Verma, Sakshi Sharma, Aparnna Rani Swain, Abhishek Singh · International Journal of Environment and Climate Change · India

This paper discusses the potential of kitchen gardening as a solution to urban heat island effects and nutritional insecurity caused by urbanization in India. Kitchen gardening contributes to managing the urban heat island effect by moderating temperature extremes through urban vegetation, which reduces energy consumption for air conditioning. It also ensures food security by providing a direct source of fresh produce, aligning with several Sustainable Development Goals.

Lu Hu, Nelson Lin, Yun Shi, Jiepin Cao, Mary Ann Sevick, Huilin Li, Jeannette M. Beasley, Natalie Levy, Kosuke Tamura, Xinyi Xu, Yulin Jiang, IRIS H. ONG, Ximin Yang, Yujie Bai, Liwen Su, Sze Wan Chan, Stella S. Yi · JMIR Research Protocols · United States

The INCLUDE study protocol describes a 3-year randomized controlled trial (n=150) to test a social media-based intervention adapting the Diabetes Prevention Program (DPP) for Chinese immigrants in the US, combined with a culturally adapted, community-supported agriculture program. Participants with prediabetes or at risk for T2D are randomized, with the intervention group (n=75) receiving 12 weeks of DPP videos, biweekly phone support, and 10 weeks of produce. Weight is the primary outcome, measured at baseline, 3-month, and 6-month intervals.

Michael Hardman, Lydia Hubbard, Hayley Watson · The Professional Geographer · United Kingdom

This article reflects on urban agriculture (UA) in the United Kingdom, focusing on its relationship with green social prescribing (GSP). It highlights the increased impact of UA schemes that adopt GSP practices. The article aims to raise awareness among key actors about opportunities and challenges, and encourage geographers to engage with GSP.

Stefania Lovo, Samantha Rawlings · The World Bank Economic Review · Ghana, Nigeria

This study investigated the impact of e-waste dumping sites on neonatal and infant mortality, focusing on two major dumpsites in Ghana and Nigeria. Using a difference-in-differences approach, outcomes were compared for children born near and far from dumpsites before and after their creation. E-waste sites increased neonatal and and infant mortality for those living closer to the sites, with event studies suggesting effects emerge two to three years after site openings. There is suggestive evidence that contamination of water and of urban farming produce are among the drivers of the observed effects.

Hailekiros Tadesse Tekle, Desta Berhe Sbhatu, Gebreselema Gebreyohannes · H2Open Journal · Ethiopia (Mekelle)

A study in Hadnet district, Mekelle, Ethiopia, assessed heavy metal concentrations in wastewater, spring water, and three leafy vegetables (lettuce, spinach, cauliflower). Wastewater samples from four experimental sites exceeded permissible limits for 4 out of 10 heavy metals (Cd, Cr, Cu, Mn), and spring water from a comparison site also exceeded limits for 4 metals (Al, As, Cd, Cu). Leafy vegetables grown in the least contaminated experimental site showed high concentrations for 6-7 out of 10 heavy metals, with lettuce and spinach having elevated levels of As and Al, respectively. The study concluded that the wastewater used for irrigation is not safe, the farm soils may have accumulated significant heavy metals, and the cultivated vegetables are highly contaminated, necessitating regulation of wastewater use for irrigation.

V. Nigel Kelly, Emma Brännlund · Irish Educational Studies · Ireland

This small-scale pilot study investigated the impact of children's involvement in a rural community garden in Ireland on their and their families' eating habits. Using a qualitative design, semi-structured interviews gathered parents' perspectives on their children's eating habits before and after participation. The study indicated that children's involvement in a community garden positively impacted their social development, confidence, and food awareness, alongside a noticeable influence on the family's general healthy food consumption. Further research with more participants is needed for more accurate data.

Alisa Sahavacharin, Fa Likitswat, Kim Irvine, Lihoun Teang · Land · Thailand (Pathum Thani)

This study assessed the potential of peri-urban areas for sustainable development, focusing on a pandan farming community in Pathum Thani, Thailand, using the Community-Based Resilience Analysis (CoBRA) approach. The community identified COVID-19, water quality, and solid waste as their primary disruptive challenges. The study concluded that the community was moderately resilient to hazards, and COVID-19 was the primary disrupting event over the past 10 years.

Prince Owusu Adoma, Afia Sakyiwaa Amponsah, Kwarteng Twumasi Ankrah, Francis Acquah, Hubert Amu, Richard Osei Agjei, Ruby Hanson · Environmental Health Insights · Ghana

This study in Kumasi, Ghana, assessed heavy metal concentrations in lettuce and spring onion cultivated at anthropogenic urban sites. It found that mean concentrations of nickel in lettuce (137.15 ± 0.0231 mg/kg) and spring onion (173.55 ± 0.02 mg/kg) at BSGS, and zinc in both vegetables across most sites, exceeded WHO/FAO permissible levels. Furthermore, the cancer risk factor for nickel in both lettuce and spring onion exceeded the benchmark of 1 × 10−6, indicating a potential increased cancer risk for consumers from long-term consumption.

Young-Bin Jung, Hyung-Kwon Yun, In-Chang Son, Se-Na Choi, Kwan Jeong Song · Journal of people, plants, and environment · Global

A 12-week study involving 20 middle-aged women in an urban gardening program and 20 in a control group examined the effects on physical activity and sleep quality. While the experimental group showed an increase in physical activity and improvements in stress and sleep quality scores, the study found no statistically significant difference in physical activity, stress index, or sleep quality between the experimental and control groups.

Kalpana Waiba, Alina Maharjan, R Shakya · Journal of Environment Sciences · Nepal

This study investigated the status and impact of urban agriculture on the population in the Kathmandu Valley, Nepal. A structured questionnaire survey of 230 families showed that 51% of respondents had access to growing areas and 76% chose kitchen gardening. The main motivations were economic considerations (50%) and personal satisfaction (20%). Participants reported cultivating 55% of their diet, contributing to good health, though challenges such as plant diseases (40%) were present.

Eko Suharyono, Ryantoko Setyo Prayitno · JMM - Jurnal Masyarakat Merdeka · Indonesia (Semarang)

In Bendan Duwur Village, Gajahmungkur District, Semarang City, Indonesia, an urban farming training program was implemented to utilize vacant land and promote food security. The program involved socialization, discussions, and distribution of horticultural seeds to participants. The training received positive responses, with participants reporting aesthetic, health, and economic benefits, and non-participants showing interest in adopting urban farming. Residents who implemented the program reduced their vegetable purchases from markets.

Bárbara Ribeiro, David E. Pattemore, A. B. Morris, Leo Baldwin-Ramult, Daniel Exeter · Journal of Urbanism International Research on Placemaking and Urban Sustainability · New Zealand

An action research project in Waharoa, New Zealand, transformed a former bowling green into a public, edible landscape. This 400 m2 Living Lab (LL) involved multi-stakeholder cooperation (government, community, and academia), and participants perceived benefits as transition pathways to more nutritious dietary choices, health education, and reduced criminality in a socially deprived region. Analyses of interviews, observations, and pollinator surveys conducted at the LL confirmed that 14 visiting species were drawn to the site, leading to an approach to regenerative placemaking that combines human health and biodiversity benefits.

Harry Wiyanto · Labs Jurnal Bisnis dan Manajemen · Global

This conceptual review aims to explore the factors, specifically knowledge, attitudes, and practices (KAP), that influence the adoption of urban farming practices. Urban farming is presented as a means for food security with diverse goals and benefits, including improved access to fresh produce and reduced climate change impact. The study seeks to gain a deeper understanding of the overall concept of the KAP model in relation to urban farming adoption.

Patsy Kraeger, Rhonda Phillips, J. H. Lubin, Jonathan Weir, Kristina R. Patterson · Sustainability · United States

This study investigated the connection between local farmers markets (FMs), community-supported agriculture (CSAs), and physical well-being at the state level across the 50 states of the United States. Analyzing 2016 data from the United States Department of Agriculture using an ordinal logistic regression model, the study found an inconclusive relationship at the state level. While local FMs and CSAs may increase physical well-being, this study did not find such an increase.

Claudia Jiménez, Patricia Yazmín Figueroa-Chávez · Journal of the Selva Andina Research Society · Colombia (Bogotá)

This study addresses the importance of school gardens as a strategy for the consumption of healthy food in an early childhood home in Bogota, Colombia.

Domenic Vitiello · Urban agriculture · United States

US cities have developed urban agriculture support systems reflecting competing values, with some prioritizing public good and others economic gains. A chapter reflecting on urban agriculture planning in Chicago and Philadelphia notes that institutional structures significantly impact equity and justice. The study indicates that the existing urban agriculture support systems in these cities may not adequately promote equity and justice.

Stephanie Bezerra Muniz Falcão, Laysla Tamyres de Oliveira Borges, ANA PATRICIA BASTOS FERREIRA · International Journal of Health Science · Brazil

This extension project in Jaboatão dos Guararapes-PE, Brazil, aimed to promote mental health and physical well-being for elderly residents in a Long-Term Care Institution (ILPI) through horticulture. A community garden was created for therapeutic horticulture activities, including sensory gardening and aromatherapy. The project found that horticulture was effective in reducing depressive symptoms, improving mood, and enhancing the quality of life for participants.