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RESUMO As hortas comunitárias inspiradas em modelos agroecológicos já são tendências nas cidades que buscam estimular ambientes positivos. Entre as possíveis estratégias, permitem integrar políticas que visam à erradicação da fome, a garantia de qualidade alimentar e o aumento da economia familiar. O presente estudo objetiva analisar os significados simbólicos e afetivos dos usuários diante de suas atividades nas hortas comunitárias urbanas. Foram 40 entrevistados com idade média entre 45 e 80 anos, por meio do Instrumento Gerador de Mapas Afetivos. A pesquisa foi realizada in loco e os participantes foram convidados a desenhar a horta e responder à entrevista. As imagens produzidas foram analisadas a partir de suas estruturas, sentimentos e sentidos. Constatou-se que as vivências nesses ambientes foram mediadas por sentimentos de agradabilidade, pertencimento e restauração. Entre os sentidos atribuídos, destacaram-se a conexão com a natureza e a interação social. Conclui-se que tais dimensões presentes nas hortas estudadas podem contribuir para a promoção da saúde, da sustentabilidade e a preservação ambiental.

ABSTRACT Community gardens inspired by agroecological models are trends in cities that seek to stimulate positive environments. Among the possible strategies, they allow us to integrate policies that aim to eradicate eradicate hunger, guarantee food quality and increase the family economy. This study aims to analyze the symbolic and emotional meanings of users during their activities in urban community gardens. There were 40 interviewees with average age between 45 and 80 years old, through the Affective Map Generator Instrument. The research was carried out on site and the participants were invited to develop the information and respond to the interview. The images produced are analyzed from their structures, feelings and senses. It is confirmed that experiences in these environments are mediated by feelings of pleasantness, belonging and restoration. Among the senses attributed, the connection with nature and social interaction stand out. It is concluded that these dimensions present in the studied gardens can contribute to the promotion of health, sustainability and environmental preservation.

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In the past five decades, global food systems have undergone a notable transition, moving from predominantly rural settings to increasingly urban and industrialized environments, largely driven by processes of globalization and supply chain integration. However, this evolution has not adequately addressed equitable access to nutritious diets and food environments, resulting in adverse health outcomes. This study delves into the spatial and non-spatial barriers that impede the adoption of healthy diets in the Noreste of Mexico, particularly focusing on the challenges associated with accessing and cultivating plant-based foods. Through an examination of suitable areas for urban agriculture and an exploration of the socio-cultural factors influencing the adoption of plant-based diets, the research focuses on interventions aimed at promoting healthier and more sustainable eating practices in Monterrey. The findings of the study reveal significant disparities in food access across the Monterrey metropolitan area, with central urban zones exhibiting superior access to fresh foods compared to suburban and peripheral regions. This inequality disproportionately affects marginalized areas characterized by higher poverty rates, exacerbating issues of food insecurity. Nevertheless, traditional dietary practices could offer promising avenues for creating culturally significant and healthier dietary transitions, even amidst the ongoing process of urbanization.

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This study aimed to measure the consumption of different types of plant waste by the diplopod species Trigoniulus corallinus, in order to determine which would be the most suitable for the millicomposting process. To this end, a waste consumption experiment was carried out in the laboratory, using a completely randomized experimental design with 15 replicates and 13 organic residues from different sources. After 10 days, the following parameters were evaluated: dry mass of the waste used to feed the diplopods, dry mass of the fecal pellets, and diplopod mortality. Significant differences were observed in the consumption rates of the diplopods in the different treatments, with the highest rates being observed for Mimosa caesalpiniifolia, with 44.49%, followed by Gliricidia sepium chips, with 38.24%. The highest values for pellet mass were obtained from the decomposition of Mimosa caesalpiniifolia litter (0.891 g). The treatment with Syngonium auritum shavings showed 93% mortality after consumption, followed by the treatment with Heliconia psittacorum shavings, which showed 53%. Both species are ornamental and widely found in gardens and backyards. The diplopods have a preference for Mimosa caesalpiniifolia litter and Gliricidia sepium shavings. There is limited consumption of ornamental plant waste, with reports of toxicity to other organisms. Based on these results, a mixture of waste will be tested for millicomposting in urban farming areas that excludes toxic plants.

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Urban agriculture (UA) can be used as an action to promote sustainability in cities and inform public health policies for urban populations. Despite this growing recognition, its implementation still presents challenges in countries in the Global North and Global South. BACKGROUND: In this context, this systematic review aims to identify the development of frameworks for the implementation of UA as a sustainable action and its main opportunities and shortcomings in meeting urban socio-environmental demands. METHODS: In this review, using the PRISMA protocol, we evaluated 26 studies on the interplay between UA and sustainability surveyed on the Web of Science to provide an overview of the state of the art. CONCLUSIONS: In summary, it was possible to identify many key challenges in UA adoption, which regard air and soil contamination, availability of green areas, layout of urban infrastructure, food distribution, among others. Due to numerous socio-economic and environmental contextual factors in cities, especially when comparing realities of the Global North and Global South, there is a need to develop a model that can be adaptable to these different contexts. Thus, it is recognized that the concept of sustainability does not present a universal understanding and that in its search it could be argued that one of the most important gaps is still to address social issues in relation to environmental ones.

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Analyzing the effect of individual participants on collaborative governance processes in environmental management has been elusive due to lack of theoretical frameworks and data limitations. This study uses pattern matching to contrast identity theory with original data from 7 individuals participating in waste management and urban agriculture collaboration in Florianópolis, Brazil. What started as a self-organized initiative to manage an environmental problem, due to precarious waste management services, was scaled up to a citywide policy. Findings demonstrate that as the collaboration evolved over time, individual participants in municipal government transitioned between roles, organizations, and departments which affected their influence on the collaboration according to two transition styles: integrators (overlapping different roles) and segmenters (aligning roles with contexts without ambiguity). While the integrator-style participants were key to increasing sectoral diversity during the activation stage of the collaboration to produce innovative actions, segmenters contributed to formalizing the collaboration with appropriate institutional designs. However, the success of the collaboration after the institutionalization stage depended on the individual transition style and the power of municipal agents to have agency for influencing the collaboration. These findings have implications for adapting collaborative settings to respond to contextual changes that involve urban environmental issues.

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Resumo A atual sindemia global, amplificada pela pandemia de covid-19, evidencia o colapso dos sistemas alimentares atuais. As iniciativas de agricultura urbana e periurbana (AUP) têm sido reconhecidas como estratégias de oposição ao modelo de sistema alimentar dominante, a partir de seus múltiplos impactos positivos. Assim, o objetivo deste artigo é discutir a evolução do conceito de segurança alimentar e nutricional (SAN) no âmbito internacional, desde sua proposição (no pós-Segunda Guerra Mundial) até a crise da covid-19, compreendendo quais as contribuições a AUP ocupa nesta agenda. Para isso, o documento estrutura-se a partir de uma revisão crítica de literatura. O campo da SAN evoluiu e foram incluídas diferentes dimensões à sua caracterização, contudo, as respostas institucionais concentram-se em momentos de crise, cujos impactos incidem sobre ela e privilegiam a manutenção de sistemas alimentares globalizados e insustentáveis. Já as práticas de AUP aparecem com picos de ascensão e declínio, a medida em que suas contribuições ganham vão ganhando novos contornos, evoluindo junto com a agenda de SAN. Na perspectiva de ampliar e somar às discussões atuais sobre SAN e AUP, discute-se, finalmente, a necessidade de incorporação dos conceitos de justiça, saúde global e de uma visão multidimensional sobre sustentabilidade.

Abstract The current global syndemic, amplified by the COVID-19 pandemic, highlights the collapse of current food systems. Urban and peri-urban agriculture (UPA) initiatives have been recognised as strategies of opposition to the dominant food system model based on their multiple positive impacts. Thus, the aim of this article is to discuss the evolution of the concept of food and nutrition security (FNS) at the international level from its proposition (in the post-World War II period) to the COVID-19 crisis, understanding the contributions of UPA in this agenda. To this end, the document is based on a critical literature review. The FNS field has evolved, and different dimensions have been included in its characterisation; however, institutional responses are concentrated in times of crises, whose impacts affect it and favour the maintenance of globalised and unsustainable food systems. The UPA practices, on the other hand, appear with peaks of rise and decline, as their contributions gain new contours, evolving along with the FNS agenda. With a view to broadening and adding to the current discussions on FNSand UPA, we finally discuss the need to incorporate the concepts of justice, global health, and a multidimensional view on sustainability.

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The use of pesticides in households and peri-urban areas of the Amazon has increased notably during the last years. Yet, the presence of these contaminants in Amazonian freshwater ecosystems remains unexplored. Here, we assessed the exposure to 18 pesticides and 5 transformation products in the Amazon River and in the urban streams of Manaus, Santarém, Macapá, and Belém (Brazil). Pesticide concentrations were analyzed by liquid and gas chromatography methods. Ecological risks were assessed following a two-tiered approach. First, hazard quotients and an overall hazard index were calculated using toxicity data for standard test species of primary producers, invertebrates, and fish. Second, the pesticides showing moderate-to-high ecological risks in the first tier were evaluated using Species Sensitivity Distributions (SSDs). Our study shows that pesticides are widespread in urban and peri-urban areas of the Brazilian Amazon. The frequency of detection was higher in urban streams than in the Amazon River, with some samples taken in Manaus, Santarém, and Belém containing up to 8 compounds. Most pesticides were measured at relatively low concentrations (ng L-1), except for malathion, carbendazim and the bulk concentration of chlorpyrifos, which were monitored at concentrations above 100 ng L-1. Based on the first-tier assessment, we found moderate-to-high risks for freshwater invertebrates for malathion, chlorpyrifos, and chlorpyrifos-methyl, and moderate risks for malathion to fish. The risk assessment performed with SSDs indicated high risks of malathion and chlorpyrifos-methyl in urban areas, with up to 15% and 5% of invertebrate species potentially affected, respectively. The bulk concentrations of chlorpyrifos resulted in high risks in some urban areas (14-22% of species affected) and in areas of the main river (32-44%) impacted by agriculture. We conclude that pesticide residues may contribute to a biodiversity impact in the Amazon and should be further monitored in urban and peri-urban areas, particularly after heavy rainfall events.

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As urbanisation intensifies in Brazilian cities, life quality in urban centres becomes a challenge for policymakers, and transitioning urban systems to sustainability is required. Circular economy concepts may contribute to face them, especially those owing to municipal solid waste (MSW) management. Curitiba, a Brazilian municipality known for its innovative initiatives towards sustainability. Despite a long tradition in recycling inert waste, MSW system struggles to promote composting even considering a decade in force national law. Decentralised composting through the Urban Agriculture Program (UAP) is the city's strategy to tackle this struggle. This strategy faces difficulties as, even if urban agriculture facilities seem to be a promising context, closing the agricultural loop within the city bounds was not possible in the 24 urban farmers communities trained in composting techniques. The literature has shown difficulties in government experiments to promote practices in the long run and several experiences in Brazil are already described. This study reveals cultural barriers that influence adoption of domestic composting, by following a secondary data review on past experiences with interviewing and observing participatively urban farms communities. From the fieldwork, cultural perspectives from four different relevant actor roles in the UAP were elaborated and conflicts between them revealed cultural barriers hindering composting practices adoption. Recommendations based on these barriers argue for bottom-up approaches for transition experiments and recognising the sense material and technical support makes to practitioners.

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Food production in areas contaminated by industrial wastes poses a serious risk to farmers and consumers. Here, we evaluate Cd, Cr, Ni, and Pb concentrations in the soils and the edible parts of lettuce, chives, tomatoes, pepper, and cassava plants grown by small farmers in areas contaminated by slag from an abandoned steel plant in Havana, Cuba. The total, environmentally available, and bioavailable concentrations of metals in the soils and the metals bioconcentration factor in the plants were determined. The risks to human health from food and soil ingestion were estimated. The total and environmentally available concentrations of Cd, Cr, and Pb were above values considered safe by international standards, with likely adverse effect on human health. Cadmium was the most bioavailable metal, reflected in the highest accumulation in the crops' edible parts. Even with negligible DTPA-available Cr concentrations in soils, the Cr concentrations in edible parts of the crops exceeded regulatory levels, suggesting that rhizosphere mechanisms may increase Cr availability. The consumption of vegetables represented 70% of the daily intake dose for Cr, Cd, and Ni, while accidental ingestion of contaminated soil is the predominant human exposure route for Pb. Our results demonstrated the health risks associated with cultivating and consuming vegetables grown on metal contaminated soils in Havana and can assist public policies capable of guaranteeing the sustainability of urban agriculture and food security.

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Resumen El propósito de este artículo es analizar la exposición a plaguicidas y cuidados de la salud, en el contexto de las prácticas productivas y reproductivas de la vida cotidiana de horticultores del Cinturón Verde de Córdoba (CVCC), Argentina, desde los dominios individual, particular y general como marco comprensivo de los procesos de determinación de salud. Se implementó un estudio analítico explicativo que incluyó el uso de metodologías mixtas entre 2013 y 2017. Se efectuó un análisis de triangulación de resultados provenientes de las vertientes cuantitativas y cualitativas. Se observó que el Modelo Productivo Agrícola Dominante determina el deterioro de las condiciones productivas y la exposición a plaguicidas de la población hortícola del CVCC. Los deficientes sistemas de regulación del uso de la tierra, débil legislación y control acorde al contexto, por parte del Estado, inciden en la vida cotidiana y obturan las prácticas individuales protectoras de la salud de los horticultores.

Abstract This article aims to analyze health care and exposure to pesticides within the context of productive and reproductive practices or the everyday life of horticulturists in the Green Belt of the City of Cordoba (GBCC), Argentina, from the individual, particular and general domains as the comprehensive framework of health determining processes. An explanatory analytical study was implemented which included the use of mixed methodologies between 2013 and 2017. A triangulation analysis was carried out of the results of the quantitative and qualitative aspects. It was observed that the dominant agricultural productive model has determined the deterioration of the productive conditions and exposure to pesticides of the horticultural population of the GBCC. Deficient systems for regulating land use, weak legislation and control from the State in accordance with the context impact on everyday life and block the horticulturists' individual health protection practices.

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BACKGROUND: Urban agriculture has been evidenced as a food production and environmental sustainability strategy, although it faces many obstacles in Latin American countries. Additionally, in urban areas, low consumption of fruit and greenery is noticeable, along with loss in food diversity, including the neglected and underutilized species (NUS), which involve potential to strengthen local food systems. For this reason, this work has sought to map urban gardens in the city of Salvador, Bahia, Brazil, characterizing their gardeners, and to systematize information regarding food produced and the use of NUS. METHODS: The municipality's urban gardens were mapped and data was collected from the gardeners. The study included two steps: (i) garden localization; (ii) on-site visits for interviews with gardeners and verification of cultivated food, destination of production, availability, and use of NUS. RESULTS: Eighteen active food gardens were located, seventeen of which participated in the study: eight (8) communal (UCG) and nine (9) private (UPG). Respondents were on average 55.76 years old, mostly (52.9%) male, working at UPG (88.9%). Women predominated in the UCG (87.5%), with higher levels of education. For 52.9% of the interviewees, the garden was their main source of income. Food produced at the urban gardens was consumed by 82.4% of the gardeners and their families. In 70.6% of the gardens, production was also sold, while 47.1% donated. During the survey, 59 NUS were found and 76.5% of respondents reported consuming 19 of the species. NUS leaves, fruits, and seeds were found to be eaten raw, boiled, or sautéed in various preparations, especially Coleus amboinicus Lour. (76.5%), Eryngium foetidum L. (35.3%), Talinum fruticosum (L.) Juss., and Pereskia aculeata Mill (both 29.4%). Occurrence and utilization of NUS did not present significant associations with the gardens or gardeners (p > 0.05). CONCLUSIONS: Salvador urban gardens, even in small numbers and without government support, have produced affordable food for the local population, preserved food diversity, and the tradition of NUS cultivation and use. Thus, urban gardens are reaffirmed as relevant spaces that should be included in public policies in order to promote food and nutritional security, biodiversity, and urban environmental sustainability.

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Food and nutrition security can be supported by an urban garden. The present study comprises a critical reflection on the difficulty of producing food in urban gardens in Brazil and shows the potential of food production and the obstacles to its expansion. In addition, issues related to the agroecological management of gardens are addressed and suggestions are made to improve the proposed public policies. Urban gardens are multifunctional and have social, economic and environmental impacts. They are strategically important for supporting low-income families and urban development. Through urban gardens, diverse foods and quality foods can be produced for self-consumption. This review highlights the importance of generating detailed information on urban gardens in Brazil to support policies aimed at this sector. Long-term and multidisciplinary studies are needed to evaluate the relationship between food production in urban gardens and household food and nutrition security. This approach revealed a lack of information on the amount of food produced by Brazilians in their gardens and consumed by the household. In addition, there is little information on the management of production. There is a gap relating to the impact of food produced in urban gardens and the prevalence of food and nutrition security. © 2019 Society of Chemical Industry.

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A agricultura urbana orgânica é um importante estímulo para o desenvolvimento sustentável das cidades, contribuindo para a segurança alimentar, melhoria do meio ambiente, inclusão social e geração de renda. O objetivo deste estudo foi caracterizar as principais dificuldades que o agricultor urbano orgânico enfrenta em municípios onde não há políticas de incentivo à agricultura urbana. Para isso, entrevistas semiestruturadas foram aplicadas entre julho e dezembro de 2018, com sete agricultores urbanos orgânicos que adotam a prática como profissão. Os resultados foram examinados conforme análise de conteúdo e apontaram carências como a ausência de mão de obra capacitada, falta de máquinas e equipamentos adequados à prática em pequenos espaços e insuficiência de recursos financeiros, insuficiências semelhantes às da agricultura familiar orgânica. Portanto, é fundamental a ampliação de políticas de fomento à agricultura urbana orgânica, contemplando tais aspectos no sentido de diminuir os obstáculos e estimular a profissão.

Urban organic farming is an important stimulus for cities' sustainable development, contributing to food security, environmental improvement, social inclusion, and income generation. This study aimed to assess the main difficulties faced by urban organic farmers in cities where there are no policies to encourage urban farming. Semi-structured interviews were applied from July to December 2018 with seven urban organic farmers who had adopted this practice as their profession. The results were examined with content analysis, detecting such gaps as lack of trained labor, lack of adequate machinery and equipment for this practice in small areas, and insufficient financing, all of which were similar to family organic farming. It is thus essential to expand policies to promote urban organic farming, addressing these issues to decrease the barriers and stimulate the profession.

La agricultura urbana orgánica es un importante estímulo para el desarrollo sostenible de las ciudades, contribuyendo a la seguridad alimentaria, mejora del medio ambiente, inclusión social y generación de renta. El objetivo de este estudio fue caracterizar las principales dificultades que el agricultor urbano orgánico enfrenta en municipios donde no existen políticas de incentivo para la agricultura urbana. Para eso, se realizaron entrevistas semiestructuradas entre julio y diciembre de 2018, con siete agricultores urbanos orgánicos que adoptan la práctica como profesión. Los resultados fueron examinados según análisis de contenido y apuntaron carencias como la ausencia de mano de obra capacitada, falta de máquinas y equipamientos adecuados para la práctica en pequeños espacios e insuficiencia de recursos financieros, insuficiencias semejantes a la de la agricultura familiar orgánica. Por lo tanto, es fundamental la ampliación de políticas de fomento a la agricultura urbana orgánica, contemplando tales aspectos, con el fin de disminuir los obstáculos y estimular la profesión.

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At the global scale, urban agriculture is increasingly developing in cities due to demographic growth and sustainable food concerns. But, urban soils are frequently polluted with metals. In urban gardens, organic matter is also commonly added both to valorize organic household waste and to promote biophysicochemical fertility. As earthworms promote the decomposition and the recycling of soil organic matter, they can also influence the biogeochemical cycle of metals in urban polluted soils. In order to produce safe vegetables in urban areas, it is crucial to highlight the mechanisms involved in complex soil-earthworm-plant ecosystems. An experiment was set up to examine these relationships using lettuce cultivated in controlled conditions with RHIZOtest® devices. Thanks to the RHIZOtest® devices, metal transfer and bioaccessibility were for the first time compared for urban polluted soil without (1-urban soil polluted with Pb, Cd, Cu, and Zn: essential or toxic metals currently found in environment, SNB) and with bioturbation (2-this metal-polluted soil subjected to earthworm bioturbation, SB) and earthworm casts (3-earthworm casts produced in this polluted soil and naturally enriched in organic matter and microorganisms, T). Metal concentration, phytoavailability, and human gastric bioaccessibility were determined in the different samples. Results showed that earthworm bioturbation increased the phytoavailability of all the metals. For the experimental condition SB, the phytoavailability of metals was increased up to 75% compared to SNB. In addition, surprisingly, metal phytoavailability was always superior in SB compared to earthworm casts (T). Moreover, earthworms led to an increase in Zn gastric bioaccessibility up to 10% in the soils in the same way as for phytoavailability, meaning Zn bioaccessibility in SB > T > SNB, whereas it remained unchanged in the lettuces. These data are important to promote sustainable agriculture activities in urban areas; actually, databases concerning different experimental conditions are needed to develop decision support tools.

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ABSTRACT Objective To characterize Salvador-Bahia community gardens, with regard to social organization, work, supply and access to food, in line with the concept of Food Security. Methods A cross-sectional, exploratory study was carried out involving information collection, identification and selection of community gardens. Seven community gardens were located, although only five participated, with data collected through the application of semi-structured questionnaires, used with 13 horticulturists. Results Most of the gardens (80.0%) were located in popular neighborhoods and had been in place for less than five years; they operated with no land legalization (80.0%), in assigned areas (80.0%) and without any technical support (100.0%). No social organization was available in most of the initiatives (60.0%). The greatest difficulties included: lack of funding (80.0%) and volunteers for work (80.0%), as well as water use restrictions (80.0%). The crops included different fruits and vegetables, for self-consumption (80.0%), donation (60.0%), and/or commercialization (40.0%). Horticulturists included women (50.0%) and men (50.0%), mean age 44.8 years, education between illiterates (25.0%) and upper level (37.5%), rural migrants (50.0%) and experienced farmers (62.5%). Positive aspects included the production and access to natural food and the pleasure of working with earth. Conclusion Insufficient policies limited technical support and financing were observed in this segment, although there were contributions to the generation of work opportunities, supply and access to food. The study showed a strong link between community gardens and strategies to promote Food and Nutrition Security.

RESUMO Objetivo Caracterizar as hortas urbanas comunitárias de Salvador-Bahia, quanto à organização social, ao trabalho, à oferta e o acesso aos alimentos, em alinhamento ao conceito de Segurança Alimentar. Métodos Realizou-se estudo transversal, exploratório, envolvendo levantamento de informações, identificação e seleção das hortas comunitárias. Sete hortas comunitárias foram localizadas, das quais cinco participaram, com coleta de dados por meio da aplicação de questionários semiestruturados, junto a 13 horticultores. Resultados A maioria das hortas (80,0%) localizava-se em bairros populares, tinha menos de cinco anos de existência, funcionava sem legalização da terra (80,0%), em áreas cedidas (80,0%) e sem apoio técnico (100,0%). Observou--se ausência de organização social, na maioria das iniciativas (60,0%). As maiores dificuldades incluíram: falta de financiamento (80,0%), de voluntários para o trabalho (80,0%) e limitações no uso da água (80,0%). Os cultivos compreenderam variedades de frutas e hortaliças, destinadas ao autoconsumo (80,0%), à doação (60,0%), e/ou à comercialização (40,0%). Os horticultores incluíram mulheres (50,0%) e homens (50,0%), média de idade de 44,8 anos, escolaridade entre analfabetos (25,0%) e nível superior (37,5%), migrantes rurais (50,0%) e com experiência na agricultura (62,5%). Como aspectos positivos do trabalho, constaram a produção e o acesso a alimentos naturais e o prazer pelo trabalho com a terra. Conclusão Verificou-se insuficiência de políticas para o segmento, reduzido apoio técnico e financiamento, conquanto houvesse contribuições para a geração de trabalho, a oferta e o acesso aos alimentos. O estudo revelou forte vinculação entre hortas comunitárias e estratégias de promoção da Segurança Alimentar e Nutricional.

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Resíduos sólidos são gerados todos os dias na cidade de São Paulo e em todo o mundo, e a sua disposição final é algo complicado devido a grande quantidade gerada. Quando separados por tipo, tem-se que mais de 50% de todo resíduo gerado nas cidades brasileiras são orgânicos e a grande maioria desse material ainda vai para aterros sanitários, apesar de poderem ser reaproveitados. São conhecidas algumas formas de destinação para resíduos orgânicos, as quais não é necessário o envio para aterro, e a principal é a compostagem (um processo natural onde os micro-organismos, como fungos e bactérias, são responsáveis pela decomposição da matéria orgânica) e o resultado desse processo é o adubo de alta qualidade. Esse projeto tem como principal objetivo analisar os principais serviços ambientais pelo método da Valoração Econômica dos Recursos Ambientais (VERA) que uma composteira e um jardim comestível podem trazer para um pequeno condomínio, pensando na destinação adequada de resíduos orgânicos e os benefícios para a saúde da comunidade, visto que alimentos orgânicos são ideais para que se tenha uma alimentação mais saudável e livre de agrotóxicos.(AU)

Solid waste is generated every day in the city of São Paulo and around the world and its final disposal is something that becomes complicated due o the large amount that is generated. When separated by type, it has been found that more than 50% of all the waste generated in Brazilian cities is organic and the great majority of this material still goes to landfills. Some forms of disposal for organic are known, which do not need to be sent to landfill, and the best way to do this is composting (a natural process where microorganisms such as fungi and bacteria are responsible for the decomposition of organic matter) and the result of this process is the compost of high quality. This project has as main objective to propose an environmental service that composting and a comestible garden can bring to a small condominium, thinking about the most suitable destination and the health benefits of the community since organic foods are ideal for a more nutritious food healthy and free of pesticides. In addition, we will value the ecosystem services that this simple change through the VERA methodology.(AU)

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Resíduos sólidos são gerados todos os dias na cidade de São Paulo e em todo o mundo, e a sua disposição final é algo complicado devido a grande quantidade gerada. Quando separados por tipo, tem-se que mais de 50% de todo resíduo gerado nas cidades brasileiras são orgânicos e a grande maioria desse material ainda vai para aterros sanitários, apesar de poderem ser reaproveitados. São conhecidas algumas formas de destinação para resíduos orgânicos, as quais não é necessário o envio para aterro, e a principal é a compostagem (um processo natural onde os micro-organismos, como fungos e bactérias, são responsáveis pela decomposição da matéria orgânica) e o resultado desse processo é o adubo de alta qualidade. Esse projeto tem como principal objetivo analisar os principais serviços ambientais pelo método da Valoração Econômica dos Recursos Ambientais (VERA) que uma composteira e um jardim comestível podem trazer para um pequeno condomínio, pensando na destinação adequada de resíduos orgânicos e os benefícios para a saúde da comunidade, visto que alimentos orgânicos são ideais para que se tenha uma alimentação mais saudável e livre de agrotóxicos.

Solid waste is generated every day in the city of São Paulo and around the world and its final disposal is something that becomes complicated due o the large amount that is generated. When separated by type, it has been found that more than 50% of all the waste generated in Brazilian cities is organic and the great majority of this material still goes to landfills. Some forms of disposal for organic are known, which do not need to be sent to landfill, and the best way to do this is composting (a natural process where microorganisms such as fungi and bacteria are responsible for the decomposition of organic matter) and the result of this process is the compost of high quality. This project has as main objective to propose an environmental service that composting and a comestible garden can bring to a small condominium, thinking about the most suitable destination and the health benefits of the community since organic foods are ideal for a more nutritious food healthy and free of pesticides. In addition, we will value the ecosystem services that this simple change through the VERA methodology.

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ABSTRACT OBJECTIVE This study aims to verify the adequacy profile of the cities of the State of Rio Grande do Sul, Brazil, in relation to the purchase of products of family farming by the Programa Nacional de Alimentação Escolar (PNAE - National Program of School Meals). METHODS This is a quantitative descriptive study, with secondary data analysis (public calls-to-bid). The sample consisted of approximately 10% (n = 52) of the cities in the State, establishing a representation by mesoregion and size of the population. We have assessed the percentage of food purchased from family farming, as well as the type of product, requirements of frequency, delivery points, and presence of prices in 114 notices of public calls-to-bid, in 2013. RESULTS Of the cities analyzed, 71.2% (n = 37) reached 30% of food purchased from family farming. Most public calls-to-bid demanded both products of plant (90.4%; n = 103) and animal origin (79.8%; n = 91). Regarding the degree of processing, fresh products appeared in 92.1% (n = 105) of the public calls-to-bid. In relation to the delivery of products, centralized (49.1%; n = 56) and weekly deliveries (47.4%; n = 54) were the most described. Only 60% (n = 68) of the public calls-to-bid contained the price of products. CONCLUSIONS Most of the cities analyzed have fulfilled what is determined by the legislation of the PNAE. We have found in the public calls-to-bid a wide variety of food, both of plant and animal origin, and most of it is fresh. In relation to the delivery of the products, the centralized and weekly options prevailed.

RESUMO OBJETIVO Verificar o perfil de adequação dos municípios do Rio Grande do Sul no que tange à aquisição de produtos da agricultura familiar pelo Programa Nacional de Alimentação Escolar. MÉTODOS Trata-se de estudo quantitativo descritivo, com análise de dados secundários (chamadas públicas). A amostra foi composta por aproximadamente 10% (n = 52) dos municípios do estado, tomando-se o cuidado de estabelecer uma representatividade por mesorregião e tamanho da população. Foi avaliado o percentual destinado às compras de gêneros alimentícios da agricultura familiar, bem como o tipo de produto, exigências de periodicidade, pontos de entrega e presença de preços em 114 editais de chamadas públicas, no ano de 2013. RESULTADOS Dos municípios analisados, 71,2% (n = 37) atingiram 30% de gêneros alimentícios oriundos de agricultura familiar. A maioria das chamadas públicas demandou tanto produtos de origem vegetal (90,4%; n = 103) como de origem animal (79,8%; n = 91). Quanto ao grau de processamento dos alimentos, os produtos in natura apareceram em 92,1% (n = 105) das chamadas públicas. Em relação à entrega dos produtos, a centralizada (49,1%; n = 56) e as entregas semanais (47,4%; n = 54) foram as mais descritas. Apenas 60% (n = 68) das chamadas públicas continham preço dos produtos. CONCLUSÕES A maioria dos municípios analisados cumpriu o determinado pela legislação do Programa Nacional de Alimentação Escolar. Encontrou-se nas chamadas públicas uma grande diversidade de alimentos, tanto de origem vegetal quanto de origem animal, sendo a maior parte deles in natura. Em relação à entrega dos produtos, prevaleceu a centralizada e a semanal.

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Resumo No cenário social contemporâneo, o resgate do vínculo do alimento com a natureza é central para o desenvolvimento de ações educativas na área de alimentação e nutrição. Nesse sentido, hortas escolares podem ser uma importante estratégia pedagógica, contando com um aprendizado baseado no contato direto com o alimento e a natureza. Este estudo buscou compreender a produção de sentidos na alimentação, entre os educadores, decorrente do envolvimento com a horta na escola. Foi uma pesquisa qualitativa, com base na hermenêutica filosófica, em que foram feitas entrevistas em profundidade com professores, funcionários e diretores de três escolas municipais de Embu das Artes. O desenvolvimento da horta produziu sentidos que dizem respeito: ao aprendizado horizontal e à troca de experiências; à vivência prática de conteúdos teóricos; ao cuidado, pelas experiências subjetivas e intersubjetivas; ao estreitamento de vínculos com a natureza, com as pessoas e com a comida. A horta escolar é uma estratégia pedagógica que abre diversas possibilidades para se pensar a relação com a alimentação.

Abstract Given the contemporary social scene, rebuilding the bond between food and nature is an important perspective for developing educational practices within the area of food and nutrition. This way, school gardens can be an important educational strategy, with possibilities to produce learning by direct contact with food and nature. This study aimed to understand the production of meanings related to food, among educators, due to their involvement with school gardens. It was a qualitative study, based on philosophical hermeneutics. For data collecting, in-depth interviews were conducted with teachers, staff, and the heads of three public schools in the city of Embu das Artes, São Paulo, Brazil. The development of the school gardens allowed participants to experience meanings related to: horizontal learning and exchange of experiences; practical learning; building of health care, through subjective and intersubjective experiences; strengthening of bonds with nature, with people and with food. School gardens are an important pedagogical proposal which opens many possibilities to think the relationship with food.

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Dentro de las posibles formas de contaminación de las hortalizas con plomo se encuentran el suelo cultivado, el agua de riego y la atmósfera; esta última debido a la suspensión de las partículas resultantes de la combustión principalmente de hidrocarburos. Con el objetivo de lograr determinar la cantidad de plomo presente en Acelga común Beta vulgaris L. producida en el contexto de la agricultura urbana, se implementó una huerta con dicho sistema productivo en la ciudad, la cual se localiza en las coordenadas: Latitud 4°42'39,6036" y Longitud 74°5'46,6152", a menos de 500 metros de distancia de dos vías vehiculares principales de la ciudad de Bogotá. Previo a la siembra, se realizaron dos tipos de análisis: contenidos de plomo en suelo cultivado y en agua para riego, con la finalidad de obtener un diagnóstico preliminar sobre los contenidos de este metal pesado en estas dos posibles fuentes de contaminación. Las labores de sistema productivo relacionadas con prácticas culturales se realizaron de manera artesanal, por lo tanto no se realizó ningún tipo de fertilización y en el manejo de plagas no hubo intervención de ningún tipo de producto con la finalidad de evitar sesgos en el presente trabajo. Al momento de la cosecha, se muestreó al azar el 10% de la población total de plantas sembradas; esta muestra fue analizada por medio de espectrofotometría de absorción atómica según procedimiento del método oficial 968.08 de la AOAC, arrojando como resultado 0 ppm de plomo. Estos resultados permiten afirmar que la producción agrícola urbana es una alternativa que fomenta la seguridad alimentaria, no solo desde los aspectos de ingesta de macro y micronutrientes, sino también desde el punto de vista de calidad e inocuidad de los alimentos al no detectarse plomo en el tejido vegetal.

Cultivated soil, irrigation water and the atmosphere are among the possible forms of contamination with lead of vegetables, the latter due to suspension of the particles resulting from the combustion, mainly hydrocarbons. In order to be able to determine the levels of lead present in common Chard Beta vulgaris L. produced in the context of urban agriculture, a vegetable garden with this production system was implemented in the city, which is located at coordinates: Latitude 4°42'39.6036" and Longitude 74°5'46.6152", less than 500 meters away from two main vehicular roads in the city of Bogotá. Before sowing, two types of analysis were performed: lead content in cultivated soil and irrigation water, with the purpose of obtaining a preliminary diagnosis of the contents of this heavy metal in these two possible sources of contamination. The productive system work related to culture practices were made using traditional methods, therefore no fertilization was performed and there was no intervention of any type of product for pest management with the aim of avoiding bias in this study. At harvest time, 10% of the total of plants population planted was randomly selected; this sample was analyzed by atomic absorption spectrophotometry through the AOAC official method 968.08 yielding a result of 0 ppm of lead. These results allow the confirmation that urban farming is an alternative that promotes food security, not only from the intake of macro and micro nutrients aspect, but also from the of quality and food safety point of view, since for lead was not detect in the plant tissue.

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