Research & reports

Rajat Kumar · Ecology Economy and Society–the INSEE Journal · India (Delhi)

This paper investigates the toxicity in river water in the Yamuna khadar floodplains in Delhi, India, caused by pesticides and fertilizers used in agriculture. The study examines how this toxicity is perceived, discursively constructed, and dealt with by differently located stakeholders. It finds that stakeholders in the Yamuna khadar do not experience pollution as a homogeneous community, nor do they all perceive themselves as suffering from or contributing to the toxicity in a similar way.

Ambroise Dalecky, Madougou Garba, Abdoulaziz Ibrahim Danzabarma, Jonas Etougbétché, Sylvestre Badou, Henri‐Joël Dossou, Ibrahima Sow, Cheikh Tidiane Niang, Ousmane Diene, Idrissa Diallo, Mohamed Seyidna Ali Saghiri, Mohamed El Hady Sidatt, Frank van Steenbergen, Amadou Bocar Bal, Luwieke Bosma, Gualbert Houémènou, Solimane Ag Atteynine, Karmadine Hima, Gauthier Dobigny, Yonas Meheretu · Environnement Risques Santé · Sub-Saharan Africa

The abstract text provided consists only of acknowledgments—thanking Valérie Golaz (INED-LPED), Marc Egrot (IRD-LPED), and the organizers of the international conference "Implementation of public policies and pesticides in the Souths" (PoPPesCI project, on public policies and pesticides in urban agriculture), held in October 2021 in Bouaké, Côte d'Ivoire, for prompting the article's writing. It contains no actual findings or content about rodent proliferation or synthetic chemical rodenticides despite what the title suggests.

Adam Abraham · Jurnal Riset Daerah · Indonesia

This study aimed to identify the impacts of land use change experienced by urban farmers in Kapanewon Kasihan, Indonesia. Using a deductive-qualitative approach, it was analyzed that urban development has both positive and negative impacts on farmers. The most significant negative impacts included pollution, decreased productivity, and the squeezing of urban agricultural land, which could lead to long-term environmental quality degradation and further spread of land use change.

Annie 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.

Laura 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.

Maurice 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.

Michael Hardman, Andrew Clark, Graeme Sherriff · Agronomy · United Kingdom

Using a qualitative approach across the UK's largest urban farm and a range of other urban agriculture (UA) sites, this study examined the barriers to upscaling city farming. Evidence pointed to urban soil contamination and hesitation about growing crops in cities as a core issue preventing UA from scaling up, alongside public hesitancy and financial barriers, despite the practice's potential social, environmental and economic value through job creation, biodiversity enhancement and shorter food supply chains. The paper concludes that public hesitation, financial barriers and soil quality prevent development, and calls for a more pragmatic approach to these barriers.

Enrico 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.

Jonathan Hall, Isabel Shargo, Niya Khanjar, Jianna Howard, Laura Schmidt, Ashley Deng, Camryn Edwards, Isabelle Berman, Joseph Galarraga, Sacoby Wilson · Environmental Justice · United States

This study in Baltimore, Maryland, used GIS mapping and spatial analysis to assess the proximity of urban farms to environmental hazards, including those with heavy metal contamination. Analyses indicated that contamination of urban farms is a possibility due to proximity: more environmental hazards were found in census tracts with urban farms, and low-income communities of color had hazards near urban farms. Historically industrial areas showed a higher concentration of environmental hazards with heavy metal or unknown contamination.

Christine Aubry, Nastaran Manouchehri · OpenEdition (OpenEdition) · France (Paris)

Urban and peri-urban agriculture is exposed to various forms of pollution related to cultivation methods and urban air and soil quality, with different crop types exhibiting varied reactions to pollutants. The T4P and REFUGE programs on urban farms in the Paris region, and the ADURAA and QUALISANN programs studying vegetable-growing in Antananarivo, Madagascar, aim to assess health risks and oversee practices using methodological frameworks.

Baby Shaharoona, Said Al‐Ismaily, Ahmed Al‐Mayahi, Nadhira Al-Harrasi, Ruqaiya Al-Kindi, Abdullah Al-Sulaimi, Hamad Al-Busaidi, Mohammed Al‐Abri · Heliyon · Global

A study in A'Seeb city, Oman, combined a sociological questionnaire survey of residents' perceptions with sampling of pathogenic bacteria, water-soluble metals, basic cations, salinity and texture in soil and groundwater near urban gardens and municipal waste disposal sites. Most surveyed residents were not paying attention to the negative consequences of their activities on soil and the environment. Heavy metal concentrations were significant at some contaminated sites though still below international standards, while fecal contaminants were reported in some garden, waste-site and groundwater samples, identifying human pathogens in risk group 2 including Klebsiella pneumoniae, Shigella spp. and E. coli.

Anne Barbillon, Christine Aubry, Nastaran Manouchehri · HAL (Le Centre pour la Communication Scientifique Directe) · France

This French guide, "R.E.F.U.G.E.," developed by AgroParisTech, sets out a four-step methodology to help urban-planning actors in the Île-de-France region assess and manage soil contamination risk before establishing urban agriculture on available land: a historical and environmental site study, a sampling strategy, interpretation of soil analyses, and, where warranted, a formal health risk assessment. Based on France's national methodology for managing polluted sites and soils, it is intended as a first harmonized technical tool for the field and was slated for a testing phase applying it to future urban agriculture projects. The abstract itself does not report contamination measurements or findings from any specific site; it describes the assessment procedure rather than presenting soil contamination data.

Piotr Krzyk, Bogusława Kwoczyńska · Problemy Drobnych Gospodarstw Rolnych / Problems of Small Agricultural Holdings · Poland (Cracow)

This study quantitatively assessed the conversion of agricultural land to investment purposes in Cracow's Mogiła and Wyciąże neighborhoods from 2010-2013, based on local plans. It also addressed soil quality, heavy metal content, and pH. Analysis of spatial management plans for these areas indicated a systematic decline in the share of biologically active areas.

Maud Chalmandrier, Marine Canavèse, Yves Petit‐Berghem, Élisabeth Rémy · HAL (Le Centre pour la Communication Scientifique Directe) · Global

This study, using case studies of public action and gardeners' relationships with urban soil, argues that the concept of "urban agriculture" smooths over inherent tensions to promote its development as an action category. This approach tends to minimize differences in meaning among actors regarding their cultivation practices and, critically, relegates the crucial question of urban soil quality and its suitability for food crops to a secondary concern.

Marthe Ortolo · Infoscience (Ecole Polytechnique Fédérale de Lausanne) · Netherlands

This study outlines a plan to assess air pollution risks in urban agriculture in the Netherlands, focusing on heavy metal (Cd, Hg) and PAK accumulation in spinach in Amsterdam urban gardens. It includes a literature review, policy maker interviews, and practical measurements of airborne contamination. The study aims to model different uptake routes by plants, but actual findings on contamination levels are not presented in this abstract.

Bethany B. Cutts, Jonathan London, Shaina Meiners, Kirsten Schwarz, Mary L. Cadenasso · Local Environment · Global

This paper applies a dynamic spatial politics framework to interpret a 30-year conflict over an urban garden in Sacramento, California. It examines how urban gardens, often idealized, are also sites of conflict due to competing visions of "soil" versus "dirt." The study highlights that contaminants like lead in the soil contribute to this instability, reframing fertile soil as dangerous dirt, and influencing the garden's transformation from a countercultural space to a gentrified amenity.

Eileen Bogweh Nchanji, Imogen Bellwood‐Howard, Nikolaus Schareika, Takemore Chagomoka, Johannes Schlesinger, D. Rodríguez Torres Axel, Glaser Rüdiger · International Journal of Agricultural Sustainability · Ghana (Tamale)

An ethnographic study in Tamale, Northern Ghana, assessed the sustainability of urban vegetable production between 2008 and 2014. While urbanization increased cultivation of profitable vegetables like cabbage, the practice involved irrigation with grey and wastewater and high pesticide use, posing health and environmental hazards. Industrial growth reduced open space urban agriculture by 8.7%, leading farmers to use interstitial spaces and peri-urban fringes, indicating a dynamic but not yet sustainable production system.

Jacques Godfroid · Archives of Public Health · Global

This opinion paper discusses a One Health approach to brucellosis at the wildlife-livestock-human interface in both industrialized and low- and middle-income countries. It points to pitfalls in serological studies and states that urban and peri-urban farming contributes to the re-emergence of brucellosis in the developing world, identifies wildlife as a potential reservoir, and discusses the ethics of culling wildlife to control disease spread.

Steve G. Hallett, Lori Hoagland, Emily Toner · Horticultural reviews · Global

This chapter discusses urban agriculture from economic, environmental, and social perspectives, acknowledging differences between urban agriculture in small and large cities, as well as the Global North and South. Urban farms and community gardens can have both positive and negative environmental impacts, such as reducing or increasing energy consumption, improving water infiltration, and beautifying neighborhoods, or producing odors and contaminating water. The chapter also attempts to frame policy recommendations that might help guide urban agriculture's development.

P. Antwi Agyei, Jeroen H. J. Ensink · Journal of Science and Technology (Ghana) · Ghana (Accra)

A study in Accra, Ghana, from September 2012 to August 2013, analyzed 323 soil and irrigation water samples and 501 produce samples for E. coli, and interviewed 693 participants. It found irrigation water was significantly more contaminated than farm soil, and over 80% of produce samples were contaminated with E. coli, with street food salad being the most contaminated. Key risk factors included farm soil, wastewater use, and poor hygiene, while consumers did not prioritize health indicators despite high risk awareness.

Bethany B. Cutts, Danqi Fang, Kaitlyn Hornik, Jonathan London, Kirsten Schwarz, Mary L. Cadenasso · Environmental Justice · United States (California)

This study introduced a Qualitative Historical Geographic Information System (QHGIS) method to investigate how newspapers reflect changing meanings of place in relation to environmental burden and benefit. Applying QHGIS to urban gardening and soil lead issues reported in Sacramento, California, the method revealed the distribution of public narratives of environmental concern across the city, the politics embedded in location names, place name-changes, and how locations serve as framing devices for environmental concerns.

Prince Antwi-Agyei, Adam Biran, Anne Peasey, Jane Bruce, Jeroen H. J. Ensink · BMC Public Health · Ghana (Accra)

This cross-sectional study in Accra, Ghana, assessed faecal exposure among 80 farm workers during dry and wet seasons, analyzing water and soil samples for E. coli. The results showed that while irrigation water was highly contaminated (5.6 Log E. coli/100 ml), exposure to farm soil (2.3 Log E. coli/g) was the key risk pathway due to soil-to-mouth events, with 53% of farmers experiencing such events daily. The estimated norovirus infection risk to farmers was found to be higher than guidelines set by the WHO, indicating that exposure to soil is a critical pathway of pathogen risk in wastewater farmers, exceeding recommended health targets.

Jingjing Zhang, Jingshuang Liu, Rui Yu, Qiang Liu, Yang Wang · Human and Ecological Risk Assessment An International Journal · China (Jilin City)

This study analyzed 50 surface soil samples from urban vegetable fields in Jilin City, China, for thirteen organochlorine pesticides (OCPs). Based on soil quality standards, DDTs and chlordanes were categorized as light pollution, while HCHs showed no pollution for most samples. The study concluded that despite the presence of various OCPs residues, the soils are still safe and suitable for agricultural production.

Christine Aubry, Jeanne Pourias, Anne Cécile Daniel · HAL (Le Centre pour la Communication Scientifique Directe) · Global

Urban agriculture is gaining popularity, often for its contribution to urban greening, re-establishing connections between urban dwellers and agricultural and food production, and among urban dwellers themselves. However, urban agriculture also involves significant health issues, which advocate for urban planning that promotes its maintenance or establishment under healthy environmental conditions.

Piotr Godyń, Maria Zielińska, Agnieszka Dołhańczuk-Śródka, Zbigniew Ziembik · Geology Geophysics & Environment · Poland

Soil samples were collected from 19 sites around the Opole industrial zone in Poland to determine the influence of the local metallurgical industry on soil contamination with metals, using Pb-210 as a contamination tracer. Results indicated that the metallurgical industry is not a source of environmental pollution in the immediate vicinity. Excessive lead concentrations ranged from 1 Bq/kg d.m. to 100 Bq/kg d.m. but were not strongly correlated with distances from the presumed source of contamination.