Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
170 results(3 / 7)
Évaluation 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 changeSystematization of the Environmental Educational Experience: The Home/School Garden as a Strategy to Address Food Security in the Post-COVID-19 Confinement School
2022Claudia Marcela Puerto Layton · Interdisciplinary Journal of Environmental and Science Education · Colombia
This article reports the systematization of an experience with home/school gardens in an educational institution in Bogotá, involving high school students (seventh and eighth grades) in face-to-face and remote modalities. Results include the reconstruction of the strategy and didactic process, highlighting aspects that affect or support the educational process in each modality. Reflections with students indicated that while home gardens can contribute to food security, pesticides can pose a risk to food security in Colombia.
Contamination & food safetyFood educationFood sovereignty & justiceHealthCommunityVertical Transfer of Bacteriological and Parasitological Pollutants from Irrigation Water to Soil and Crops
2022Jihan Faouzi, Imane Bedoui, Sanae Rezouki, Tarik Moubchir, Aimad Allali, Noureddine Eloutassi, Amal Lahkimi · Ecological Engineering & Environmental Technology · Morocco (Fez)
This study in Fez, Morocco, compared bacteriological and parasitological contamination in urban, peri-urban, and rural irrigation waters, and their transfer to soil and crops (cardoon and eggplant). Investigated microorganisms included total and thermotolerant coliforms, helminth eggs, Salmonella, and cholera vibrio. Results revealed contamination exceeding national and international standards for both types of coliforms in treated wastewater (TWW), wastewater (WW), Oued Fez water, and upstream well water in both winter and summer. This fecal contamination was found in soils and crops irrigated by urban and peri-urban water. Helminth eggs and cholera vibrio were also present in these waters, soils, and crops, with Salmonella detected in TWW in summer. Only the plot irrigated with Oued Bitit water in the rural zone met standards across all three levels of irrigated water, soil, and plants, and in both periods.
Contamination & food safetyHealthOrganic cyclePeri-urban agricultureEffects of Mixed Cropping of Garden Plants with Brassica parachinensis on Remediation of Cr-Polluted Soil in Community Garden
2022Shiyu Cui, Wenbin Liu, Hexian Jin, Yi Qiao, Ying Wang, Dan Liu · Atmosphere · Global
This study investigated the effects of mixed cropping garden plants (Festuca arundinacea, Ageratum conyzoides, Trifolium repens) with Brassica parachinensis on Cr-contaminated soil remediation. While mixed cropping with Trifolium repens resulted in the highest B. parachinensis yield and Cr content below standard in edible parts, mixed cropping with Ageratum conyzoides aggravated Cr pollution in edible parts of B. parachinensis, making it unsuitable for planting.
Contamination & food safetyCommunityHealthOrganic cycleLegacy Lead in Urban Garden Soils: Communicating Risk and Limiting Exposure
2022Anna Paltseva, Zhongqi Cheng, Murray B. McBride, Maha Deeb, Sara Perl Egendorf, Peter M. Groffman · Frontiers in Ecology and Evolution · Global
This synthesis paper summarizes current scientific knowledge on lead (Pb) contamination in urban garden soils and provides clear recommendations for assessing actual health risks and limiting exposure. Urban garden soils often contain elevated levels of Pb, mainly from legacy sources, which is a main barrier for urban gardening. Amendments are noted as unreliable for treating contaminated soils to reduce risk, as they do not always make contaminants less harmful.
Contamination & food safetyHealthOrganic cycleCommunityDevelopment of a Process for Domestic Wastewater Treatment Using Moringa oleifera for Pathogens and Antibiotic-Resistant Bacteria Inhibition under Tropical Conditions
2022Nini Sané, Malick Mbengué, Amandine Laffite, Serge Stoll, John Poté, Philippe Le Coustumer · Water · Global
This study developed a wastewater treatment plant prototype coupled with Moringa oleifera seeds to reduce fecal indicator bacteria and antibiotic-resistant bacteria in domestic wastewater. The prototype alone reduced bacteria by 99.34%. The addition of Moringa oleifera seeds achieved high removal rates for E. coli (36.6–78.8%), fecal coliform (28.3–84.6%), Vibrio cholera (35.3–95.6%), and total flora (32.1–92.4%). For antibiotic-resistant bacteria, removal rates were up to 98% for E. coli and fecal coliform, 100% for Vibrio cholera, and 91.96% for total flora.
Contamination & food safetyHealthOrganic cycleFarming Practices and Disease Prevalence among Urban Lowland Farmers in Cameroon, Central Africa
2022Annie Stéphanie Nana, Timo Falkenberg, Andrea Rechenburg, Annet Adong, Anne Ayo, Pierre Nbendah, Christian Borgemeister · Agriculture · Cameroon
This study investigated factors influencing farming practices and disease prevalence among 130 vegetable producers in the lowlands of Yaoundé, Cameroon, through a cross-sectional survey. Education level and farm size were positively associated with overall fertilizer use, while pesticide usage was positively associated with years cultivated but negatively with land ownership. Waterborne disease prevalence was linked to education level, and malaria prevalence to farmer gender. The location of cultivated areas significantly influenced reporting malaria and headaches, concluding that despite associated health risks, vegetable production is necessary for farmers’ livelihoods.
Contamination & food safetyHealthEconomicsPolicyRisk 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 changeHealth Risk of Heavy Metals Related to Consumption of Vegetables in Areas of Industrial Impact in the Republic of Kazakhstan—Case Study for Oskemen
2022Laura Boluspayeva, Monika Jakubus, W. Spychalski, Akhan Abzhalelov, Yertas Bitmanov · International Journal of Environmental Research and Public Health · Kazakhstan (Oskemen)
This study investigated heavy metal contamination in soils and vegetables due to the metallurgic industry in industrial areas of Oskemen, Republic of Kazakhstan. The greatest amounts of metals were found in soils and vegetables from the industrial zone, with the lowest in the suburban zone. Lead concentrations exceeded WHO/FAO standards in all analyzed vegetable samples, leading to the conclusion that consumption of vegetables cultivated in industrial areas should be restricted due to health risks.
Contamination & food safetyHealthCommunityPolicyPer- and polyfluoroalkyl substances (PFAS) in commercial composts, garden soils, and potting mixes of Australia
2022Anithadevi Kenday Sivaram, Logeshwaran Panneerselvan, Aravind Surapaneni, Elliot Lee, Kurunthachalam Kannan, Mallavarapu Megharaj · Environmental Advances · Australia
This study assessed 19 commercially available composts, garden soils, and potting mixes in Australia for 38 per- and polyfluoroalkyl substances (PFAS). Total PFAS concentrations ranged from 1.26 to 11.84 µg kg−1 (dry weight), with total perfluorinated carboxylic acids (ƩPFCAs) being higher than perfluoroalkyl sulfonic acids (PFSAs). The total oxidizable precursor assay (TOPA) showed an increase in short-chain ƩPFCAs (0.48 to 7.63 µg kg−1) in composts and potting mixes, indicating transformation of PFCAs precursors. The measured concentrations of short-chain PFCAs in soil substrates have the potential to contribute to plant uptake and food chain transfer of PFAS to humans.
Contamination & food safetyHealthCompostFactors Influencing the Sustained Adoption of Innovative Techniques by Urban Farmers in Lubumbashi, Democratic Republic of Congo
2022Maurice Kesonga Nsele, Jules Nkulu Mwine Fyama, Kevin Maréchal, Thomas Dogot · Agriculture · Democratic Republic of Congo (Lubumbashi)
In urban agriculture in Lubumbashi, Democratic Republic of Congo, an innovative technology package was disseminated, but ten years later, farmers' daily income was less than USD 1.25, and critical exceedances of heavy metal content standards in crops were recorded. Survey data from 202 farmers and a Logit model identified factors influencing the sustained adoption of two innovations: motor pumps and integrated soil fertility management. Socio-demographic factors were not significant for motor pump adoption, and only mutual aid moderately influenced integrated soil fertility management. Economic factors like land tenure and income diversification were significant for motor pump adoption, but no economic factors were significant for integrated soil fertility management. Institutional factors such as access to credit and association membership were significant for the sustained adoption of both innovations.
Contamination & food safetyEconomicsPolicyHealthPollution 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 cyclePathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and wastewater irrigation
2021Isaac Asirifi, Korbinian Kaetzl, Steffen Werner, Courage Kosi Setsoafia Saba, Felix K. Abagale, Philip Amoah, Bernd Marschner · Journal of Environmental Quality · Ghana
A field experiment in northern Ghana assessed health risks from pathogen and heavy metal contamination in urban agriculture, evaluating rice husk biochar, N-P-K fertilizer, and their combinations with untreated wastewater or tap water irrigation. While heavy metals in irrigation water and soil were below FAO/WHO standards, wastewater irrigation caused significant E. coli, fecal coliform, and helminth egg contamination on red amaranth vegetables and in soil. Biochar application did not affect bacterial contamination.
Contamination & food safetyHealthOrganic cycleReviewing chemical and biological risks in urban agriculture: A comprehensive framework for a food safety assessment of city region food systems
2021Enrico Buscaroli, Ilaria Braschi, Chiara Cirillo, Agnès Fargue‐Lelièvre, Giuseppe Carlo Modarelli, Giuseppina Pennisi, Isabella Righini, Kathrin Specht, Francesco Orsini · Food Control · Global
This paper addresses the potential underestimation of food safety risks in urban agriculture (UA), which can lead to regulatory gaps, despite positive perceptions of UA. It reviews literature on UA food safety assessments, identifying indicators and developing a framework for evaluating food safety risks in UA initiatives. The framework uses business surveys and food analyses to calculate a food safety index for UA businesses and city regions.
Contamination & food safetyHealthPolicyDigital agricultureWater quality indicators of the Nima Creek, and potential for sustainable urban agriculture in Ghana
2021Shwan Mohammed, P. K. Nyade, Mohamad Abdulhamid, I. O. A. Hodgson · Water Science · Ghana (Accra)
This study assessed urban water quality parameters of the Nima Creek in Southeastern Accra, Ghana, sampling water from six locations. The results showed high enrichment of nutrients (ammonia, nitrate, phosphate) and elevated levels of BOD, COD, and grease at sites receiving solid and liquid wastes. Physicochemical parameters like conductivity, TSS, and TDS also exhibited elevated values, indicating significant contamination that poses challenges for sustainable urban agriculture.
Contamination & food safetyHealthPeri-urban agricultureHEAVY METALS IN FOOD CROPS: IDEAL SOURCES AND ROLES OF URBAN AGRICULTURE IN FACILITATING THEIR CONSUMPTION- A REVIEW
2021Nazir Muhammad Abdullahi, Ernest Chukwusoro IGWE, Munir Abba Dandago, Naima Umar · FUDMA Journal of Sciences · Global
This review discusses heavy metal contamination in food crops, identifying wastewater irrigation, agrochemical abuse, contaminated fields, atmospheric deposition, and unethical mining as primary sources. Agricultural soil in urban and peri-urban areas is heavily contaminated due to anthropogenic activities, with wastewater irrigation intensifying this contamination. Heavy metals are transferred to food crops during production and subsequently to humans upon consumption, posing a detrimental risk.
Contamination & food safetyHealthUrban–rural linkageThe Collective Fabric of Sustainable Management of Mining Sites to Reconcile Sensitive Land Uses and Human Health
2021Camille Dumat · Aspects in Mining & Mineral Science · Global
This paper discusses the negative environmental and health impacts of mining, such as air and soil pollution, despite its socio-economic benefits. It highlights that urban agriculture, particularly in areas near former mining sites, faces challenges regarding soil quality and the production of unpolluted vegetables due to public concerns about contamination.
Contamination & food safetyPeri-urban agricultureHealthCommunityClimate 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 cycleOccurrence and Determination of Antimicrobial Resistant Escherichia coli Isolates in Fish and Vegetables as Indicator Organism of Faecal Contamination in Dar es Salaam, Tanzania
2021Francis Mwanza, Erick Komba, Dominic Kambarage · International Journal of Microbiology · Tanzania (Dar es Salaam)
This study in Dar es Salaam, Tanzania, investigated the occurrence, antimicrobial resistance, and genetic relatedness of E. coli isolates from 156 samples of manure, vegetables, and fish. Of these, 36 samples (23.1%) were positive for E. coli, yielding 48 isolates. A significant finding was that 25 (52.1%) of these isolates were resistant to at least one antimicrobial agent, and 12 (48.0%) showed multidrug resistance, indicating a potential microbial health risk to humans through contamination.
Contamination & food safetyHealthOrganic cycleCommunityContamination of toxic metals and polycyclic aromatic hydrocarbons (PAHs) in rooftop vegetables and human health risks in Bangladesh
2020Tanmoy Roy Tusher, Md. Eusuf Sarker, Sumaya Nasrin, Tapos Kormoker, Ram Proshad, Md. Saiful Islam, Shamim Al Mamun, A. R. M. Tareq · Toxin Reviews · Bangladesh
This study investigated toxic metal and PAH contamination in rooftop soils and vegetables (red amaranth, spinach) in urban and peri-urban Bangladesh. Urban rooftop soil and vegetables were highly contaminated with toxic metals and PAHs compared to peri-urban samples. Lead (Pb) and cadmium (Cd) concentrations in urban vegetables exceeded safe limits. However, health risk indices indicated that the levels of toxic metals and PAHs in urban rooftop vegetables would not pose carcinogenic or non-carcinogenic health risks for adults and children, deeming them safe for consumption.
Contamination & food safetyHealthPeri-urban agriculturePolluted Waters Use in the Urban Agriculture and Its Impact on the Quality of the Grown Vegetables
2020Fabien Ilunga Mpanga, Michel Shengo Lutandula⃰ · The Global Environmental Engineers · Democratic Republic of Congo (Lubumbashi)
A study conducted in the Kasungami district of Lubumbashi, Democratic Republic of Congo, investigated the link between the use of polluted waters in urban agriculture and heavy metal contamination in soil and cultivated vegetables (amaranths, broccolis). Physicochemical and mineral analyses of water, soil, and plant samples revealed that heavy metals, except cobalt, were present in the water used for urban agriculture at concentrations below quality standards, but the soil contained heavy metals at phytotoxic concentrations. Only broccolis were contaminated with lead, while amaranths had heavy metals below quality standards. These findings suggest that urban agriculture in large agglomerations of the DRC could endanger consumers' health.
Contamination & food safetyHealthUrban–rural linkageAssessment of Foliar Uptake and Accumulation of Airborne Polyaromatic Hydrocarbons Under Laboratory Conditions
2020Gábor Teke, Katalin Hubai, Dorina Diósi, Nóra Kováts · Bulletin of Environmental Contamination and Toxicology · Global
This laboratory study assessed the foliar uptake and accumulation of airborne polyaromatic hydrocarbons (PAHs) in lettuce (Lactuca sativa) using an aqueous extract of urban aerosol, following OECD Guideline 227. The study found significant accumulation of PAHs in lettuce, with naphthalene showing the highest bioconcentration factors (BCFs) and anthracene, pyrene, and fluoranthene showing the lowest bioaccumulation potential. The BCF of each PAH strongly correlated with its molecular weight.
Contamination & food safetyHealthAgriculture 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 cycleSoil-Transmitted Protozoans and Helminths from Market Gardening Sites of Yaounde, Cameroon
2020Herman Parfait Awono-Ambene, Laurelle Djieukap Njieyap, Patrick Akono Ntonga, Josiane Etang, Christophe Antonio‐Nkondjio, Cyrille Ndo, Jacques Étamé, Flobert Njiokou, Serge Hubert Zébazé Togouet · Journal of Environmental Science and Public Health · Cameroon (Yaounde)
This study analyzed water and soil samples from three market garden sites in Yaounde, Cameroon, from October to December 2016, for physicochemical characteristics and parasite identification. The analysis of 82 samples revealed the presence of 3 protozoans (Entamoeba histolytica, Sarcocystis sp., and Giardia intestinalis) and 11 helminths in the soil. The presence of viable helminths suggests that harmful soil pathogens such as protozoans and helminths can spread through market gardening.
Contamination & food safetyHealthПотенциални рискове от замърсяване на производството при земеделие в градска среда
2020Милена Йорданова, Вера Петрова, Цветелина Николова, Елена Цветкова, Milena Yordanova, Vera Petrova, Tsvetelina Nikolova, Elena Tsvetkova · Bulgarian Portal for Open Science · Global
This article considered the potential risks of contamination in urban agricultural products. Urban agriculture, particularly in large cities, areas with heavy traffic, or near industrial zones, can lead to the accumulation of heavy metals in vegetable crops due to air pollution, traffic pollution, and other sources. Consuming these contaminated fresh vegetables is noted to potentially deteriorate human health.
Contamination & food safetyHealthUrban–rural linkage