Research & reports

Léon W. Nitièma, Boubacar Savadogo, Dramane Zongo, Aminata Kaboré, Poda Jean Noël, Alfred S. Traoré, Dayéri Dianou · Journal of Environmental Protection · Africa

This study examined the microbial quality of wastewater used for truck farming in Ouagadougou, Burkina Faso, testing for bacterial and parasitological fecal indicators during the dry-hot season (May) and the wet season (July) of 2012. Wastewater from three water reservoirs and two canals intensively used for truck farming was analyzed, and the same indicators were tracked through waste stabilization ponds at three treatment plants in the city. Concentrations of microbial indicators were significantly higher in the dry-hot season than the wet season across all sampling sites, with levels reaching up to 53,800 CFU/100ml for E. coli, 8,200-108,400 CFU/100ml for fecal coliforms, 650-45,000 CFU/100ml for fecal streptococcus, and 0-2.4 eggs/l for helminths. Through the waste stabilization ponds, significant microbial concentration drops of 82-100%, 78-98%, 60-100%, and 82-88% respectively were recorded between the anaerobic and maturation ponds. The results indicate that improving the refining performance of waste stabilization pond technology could help reduce the health risks associated with wastewater reuse in urban agriculture in developing countries.

Dominique Rossi Breetzke, Christina Breed · UpSpace Institutional Repository (University of Pretoria) · South Africa

A landscape architecture study centered on Sunnyside, Pretoria, South Africa, using an abandoned stretch of land along the Walker Spruit as a case study to test the hypothesis that allotment-style community gardening designed around urban ecology can increase food security and social capital. It examines Guerrilla Gardening and allotment cultures in Britain, Canada, and Switzerland, and applies the green infrastructure concept of a "Continuous Productive Urban Landscape," concluding that allotment culture and permaculture can be ways of reconnecting people with urban nature. It proposes a "three natures" design concept intended to unite the neighboring Clydesdale and Sunnyside East areas. The work is a design proposal and case study rather than a study with measured outcome data.

Michael Dubnewick, Karen M. Fox, D. Jean Clandinin · Leisure/Loisir · Canada

This autobiographical narrative inquiry follows one author's (Michael's) lived experience of gardening with his family's gardens and two community gardens, Heritage and Eco, in Edmonton, Canada. Using narrative inquiry methodology, the authors present institutional, community and personal narratives from Michael's gardening experience to illustrate gardening as a leisure practice shaped by multiple, sometimes paradoxical, contexts of people, cultures and communities.

Block K., Gibbs L., Staiger P., Gold L., Johnson B., Macfarlane S., Long C., Townsend M. · Health Education & Behavior, 39(4):419-432 · Australia

A mixed-methods evaluation of Australia's Stephanie Alexander Kitchen Garden Program. It reported social and learning benefits including increased student engagement, confidence and willingness to try new foods, plus experiential, integrated learning and stronger school-community connections.

Aleenah Mehta · Undergraduate Journal of Service Learning & Community-Based Research · United States

Framed around the argument that obesity and food insecurity in the United States are increasingly understood as conjoined rather than mutually exclusive problems, this paper introduces the Fruit of Folks Project as an urban farming response to local hunger. The abstract notes that the industrial food model's emphasis on producing ever greater quantities of food can itself threaten food security, defined as a person's or community's access at all times to enough food for an active, healthy life.

· Journal of Hazardous Materials · Bangladesh

In an arsenic-contaminated area of Bangladesh, residents ingest carcinogenic arsenic daily through home-grown vegetables and drinking water, posing a documented health concern.

Joseph N. Cohen, S. Gearhart, Elizabeth Garland · Journal of Hunger & Environmental Nutrition · United States (New York City)

A prospective cohort study in New York City investigated whether Community Supported Agriculture (CSA) participation increased fruit and vegetable consumption and home-cooked meals. Among 583 individuals who completed both surveys, CSA members showed a statistically significant increase of 2.2 servings of fruit and vegetables per week and 4.9 home-cooked meals per month compared to non-members. CSA participation was also associated with subjective reports of increased fruit and vegetable consumption.

G. N. Egwu, John O. Agbenin · Archives of Agronomy and Soil Science · Nigeria

A study in northern Nigeria assessed cadmium, lead, and zinc contamination in soils and leaf vegetables (amaranthus, lettuce) irrigated with untreated wastewater. Total cadmium and zinc concentrations in soils exceeded safe limits, and lead and cadmium in edible portions of amaranthus and lettuce exceeded safe limits for human consumption by 7–17 times. The permissible limit for lead established for agricultural lands may not be suitable to ensure produce safety in urban and peri-urban agriculture in Kano.

Ghulam Murtaza, Abdul Ghafoor, Muhammad Zia‐ur‐Rehman, Muḥammad Ṣābir, Asif Naeem · Communications in Soil Science and Plant Analysis · Global

This study investigated metal accumulation in plants grown in urban agricultural lands irrigated with untreated city effluent in developing countries. Sewage samples showed hazardous electrical conductivities, sodium adsorption ratios, and residual sodium carbonate for irrigation, although metal levels were near permissible limits. Critically, plants acquired metal contents that were greater than those found in the raw sewage or soils, indicating significant metal uptake.

Osama M. E. Seidahmed, M.A. Abdelmajed, Mashair Sir El Khatim Mustafa, Abraham Mnzava · Eastern Mediterranean Health Journal · Sudan (Khartoum)

A baseline survey in Khartoum city, Sudan, from September to November 2007, assessed the insecticide susceptibility of 9820 Anopheles arabiensis specimens across 6 urban and periurban sites. The mosquito was susceptible to bendiocarb, propoxur, fenitrothion, deltamethrin, and lambda-cyhalothrin. However, susceptibility rates for malathion, DDT, and permethrin differed significantly between urban and periurban sites, and 50% knockdown times were significantly higher in periurban populations for deltamethrin, lambda-cyhalothrin, and malathion.

Barry E. Smith · · Canada

The British Columbia Farmland Preservation Program, established by the Land Commission Act on April 18, 1973, aims to preserve the province's valuable farmland. This program has sustained economic and social benefits from agriculture, preserved community character, and maintained natural capital. The Agricultural Land Reserve (ALR) has also acted as an urban growth boundary, contributing to compact urban development and addressing land use conflicts.

Redazione · TERRITORIO · United States

This paper presents the basic features of two urban farming projects in Milwaukee and Philadelphia aimed at solving the problem of food deserts in declining inner cities of the US rustbelt. It discusses the forms and relevance of convergences between food culture and food justice, relating them to the debate on the future of urban forms in these inner cities.

Nahed N. Mahrous · The Journal of Pediatrics · Canada (Hamilton)

This project investigated metal, bacteria, and corn root interactions in metal-contaminated soils from Blackfrairs Community Garden and a Hamilton home. It found that bacterial numbers were lower than in uncontaminated soils, and bioavailable metal concentrations increased over time. High concentrations of metals were detected in grains, with copper, iron, and manganese accumulating in rhizospheres, and zinc distributed throughout root tissue in Blackfrairs plants.

Joan Armon, Elizabeth Grassi · ePublications at Regis University (Regis University) · United States

This study describes two initiatives aimed at developing justice-oriented pre-service teachers. "Study Abroad in the Neighborhood" involves pre-service teachers visiting local families to learn Spanish language and culture. "Environmental Regeneration through Permaculture Food Gardens" focuses on pre-service teachers and children constructing school gardens linked to curriculum, food cultures, and health. These community contexts aim to enhance pre-service teachers' cultural and environmental awareness of local injustices.

I. Karabozhilova, Barbara Wieland, Silvia Alonso, Laura Salonen, Barbara Häsler · British Poultry Science · United Kingdom (London)

A 2010 questionnaire survey of 30 backyard chicken flock-keepers in the Greater London Urban Area found that while chickens generally had conditions for natural behaviors, most owners did not comply with regulations on catering waste feeding. Disease prevention measures were rare, and a lack of avian and zoonotic disease knowledge among owners was observed, indicating implications for disease control.

· · United States (New York City)

In New York City, social workers and community organizers engage in environmental protection practices through community organizing aimed at creating and preserving green spaces. Much of this activism takes place within community gardens, which are recognized as spaces for social engagement, community building, and social justice-based activism.

Julie L. Self, Amanda Wyatt, Aimee Webb Girard · The FASEB Journal · United States (Atlanta)

This research characterized community gardens (CGs) in two urban counties in Atlanta, Georgia, through semi-structured interviews with diverse garden leaders. The study identified primary barriers to creating and sustaining CGs as leadership constraints, reliable access to natural resources, and unclear regulations. It also found that CGs foster access to fresh food, knowledge, and community connections, with benefits varying by community.

Lori Leonard, W. J. S. Mwegoha, Charles Kihampa · International Journal of Plant Animal and Environmental Sciences · Tanzania (Dar es Salaam)

This study investigated public awareness and health risks from heavy metal pollution in vegetables irrigated with Msimbazi River water in Dar es Salaam, Tanzania. Over 71% of 35 respondents used the river for irrigation, and high levels of chromium, lead, and copper were detected in popular vegetables. 69% of respondents were unaware of industrial pollution, and 63% were unaware of potential health effects. The study found that 95.6% of adults, 30.7% of children aged 6-12, and 12.5% of children aged 2-6 were at risk of lead carcinogenic effects, while 5% of children aged 2-6, 2.8% of children aged 6-12, and 1.2% of adults were at risk from carcinogenic cadmium effects.

Jenny Calabio, Ma. Luisa Albacete · WVSU Research Journal · Philippines (Iloilo City)

This study, conducted from July 2007 to July 2008 at the Urban Agriculture Demonstration Site in La Paz, Iloilo City, evaluated soil media and ameliorants for container-grown green onion, pechay, and tomato. Pure compost was found to be the best medium for increasing yields. However, the use of IMO and rice hull as soil ameliorants did not increase yields for the three tested vegetables, and rice hull generally reduced pechay yields.

Tazrina Ananya, Yousuf Mahid, Afia Sultana Shanta, Roxana Hafiz · Journal of Bangladesh Institute of Planners · Bangladesh (Dhaka)

This study aimed to determine the suitability of urban and peri-urban agriculture (UPA) in the DMDP area of Bangladesh, focusing on Gazipur, Kaliganj, Rupganj, and Narayanganj Upazilas. UPA is considered a key component of survival strategies for poorer populations, contributing significantly to urban fresh food supply, and offering positive impacts such as improved nutrition, enhanced living environments, increased entrepreneurship, and poverty alleviation.

Anthony Sutton · DigitalCommons (California Polytechnic State University) · United States (Maine)

This ethnographic communication research supported the Micmac Farms in Presque Isle, Maine, which were established to address food security and community health issues like obesity and diabetes. The study, conducted over three months in summer 2011, identified that administrative power structures, economic constraints, and operational planning issues threatened the farm's efforts to achieve greater economic and food security. The analysis revealed that economic behaviors dominated the data, with grants for the farm centering on economics due to historical farming discourse and business focus.

Silvana Maria Ribeiro, Elaine de Azevedo, Maria Cecília Focesi Pelicioni, Cláudia Maria Bógus, Isabel Maria Teixeira Bicudo Pereira · Revista Brasileira em Promoção da saúde · Brazil

This documentary research reflected on agroecological urban agriculture in relation to health promotion and food and nutritional security, involving local communities. Data synthesis, based on reports, field activity records, participant testimonies, and project coordination interviews, revealed that agroecological urban agriculture contributed to community leadership, popular participation, and the development of food and environmental awareness among social actors. Conclusions identified relevant aspects aligned with health promotion principles, including strengthening intersectorality, local empowerment, individual and collective agency, creating healthy environments, and community mobilization.

Aubin Ondo, Pascale Prudent, C. Massiani, Menye Biyogo, Mariane Domeizel, Jacques Rabier, François Eba · Journal of the Serbian Chemical Society · Gabon (Libreville)

An assessment of urban agriculture's impact on soil properties and metal uptake by leafy vegetables in Libreville, Gabon, found strong soil acidification and decreased nutrient/metal concentrations due to agricultural practices. Metal transfer to plants was significant, with amaranth accumulating more metals than other vegetables, though cadmium and lead were not detectable in plant tissues. Amaranth and roselle preferentially concentrated metals in their leaves.

Barb Bergman · Educational Media Reviews Online · United States (Baltimore)

The film "Cafeteria Man" follows Tony Geraci, Food and Nutrition Director for Baltimore schools, as he works to improve school lunch quality. It highlights how local fresh foods benefit students and farmers, and how school gardens provide learning opportunities for students in urban neighborhoods. The film also touches on obstacles to improved school lunch, including schools not receiving purchased fresh produce.

Fan Zi-wen · 地理科学进展 · China (Beijing)

This study analyzed typologies of vegetable production in peri-urban Beijing in pursuit of food security driven by urban agriculture development. It analyzed fresh vegetable supply sources in Beijing, identified disadvantages of longer-distance supply, and summarized five typical urban agricultural development models in peri-urban Beijing's vegetable production, including their background, operation, and management characteristics.