327 resultados para Avaliação Ambiental Estratégica


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The location of Jundiai-Mirim river basin, close to large urban centers and industrial parks, has contributed to the appreciation of their lands. Consequently, the region has an intense process of urbanization that resulted in an increasing environmental disturbance in the forest areas. Given the need to preserve existing natural vegetation, because the watershed is the source of water used to supply Jundiai, SP, this study evaluated changes in the environmental quality of the watershed forest fragments between 1972 and 2013. The environment quality was determined by evaluating nine indicators of environmental disturbance, obtained by techniques of Geoprocessing and integrated by Multicriteria Analysis. The results showed a constant tendency of deteriorating the environmental quality of natural vegetation between 1972 and 2013, attributed to the intense process of occupation of the watershed. It is concluded that: (a) urbanization and deforestation of natural vegetation were primarily responsible for changes in environmental quality; (b) there is a need to create public policies to preserve the natural vegetation in the watershed.

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The aims of this research were to evaluate the acute toxicity (LC/EC50) and the environmental risk of toltrazuril (TOL) and florfenicol (FFC) for plant Lemna minor, snail Pomacea canalicuta, fish Piaractus mesopotamicus and Hyphessobrycon eques and the microcrustacean Daphnia magna. The organisms were acclimated in room bioassay with controlled temperature according to standard to each one. They were exposed at nominal concentrations in static system. For environmental risk (RQ) was used the estimated environmental concentration (EEC) that is the dosage indicate to treatment and the lethal or effective concentration (LC/CE50) from each drug in acute exposure. FFC showed LC50;7d of 97.03 mg L-1 for L. minor; >100.0 mg L-1 for P. mesopotamicus and H. eques and EC50;48h > 100.0 mg L-1 for P. canaliculata and D. magna, and it was classified low risk (RQ = 0.01) for all bioindicators. TOL howed LC50;7d >100.0 mg L-1 for L. minor, 3.72 mg L-1 for P. mesopotamicus; 6.22 mg L-1 for H. eques and CE50;48h of 7.59 mg L-1 for P. canaliculata and 18.57 mg L-1 for D. magna, and it was classified low risk (RQ = 0.01) for L. minor and high risk for P. mesopotamicus (RQ = 2.68), H. eques (RQ = 6.22), P. canaliculata (RQ = 1.31) and D. magna (RQ = 0.53). Lemna minor was the bioindicator indicating of FFC toxicity and H. eques, bioindicator of the TOL. FFC is safety however and the use of TOL necessaries cautions to treat the wastewater before discard on the environment.

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Spills can ocurr during oil productive chain and contaminate various environments due to the toxicity of monoaromatics hidrocarbons. Toluene stands out for being agressive to the nervous sistem and teratogenic, with high mobility and solubility in water, which facilitates environmental impact. Studies show that fungi are potential aromatic compounds assimilators, encouraging new researches about its use on the recovery of contaminated sites. This study aimed to select and characterize fungus with potential for biorremediation of toluene. 50 fungi were selected of the Collection of Microorganisms of Interest for Oil Gas and Biofuels, of UNESP Rio Claro, all of which were isolated from sites contaminated with monoaromatic hydrocarbons. Two trials were realized to select the microorganism with greater potential. The first test evaluated fungal growth under toluene saturated atmosphere. 24 fungi were chosen because its greater biomass production to participate in the next trial, the degradation in plates test, where the blue redox agente, DCPIP, indicates the degradation reaction, turning colorless. From this teste was possible to select one isolate which showed higher growth and stronger medium discoloration as the microorganism with the greatest potential to assimilate toluene. The Trichoderma cf. koningii had its potential evaluated through gas cromatography. The experiment proved the efficiency of the methodology, with positives results from the method validation and the effectiveness demonstrated of the LA-PHA-PACK bottles to prevent the volatilization of toluene during the 21 days of experiment. Being reliable its use for monitoring toluene decay associating it with degradation. This results are important because there aren't many methodologies and vials efficient to the purpose of this work. In the present study the degradation rates demonstrated no significant decay of the concentration of hydrocarbon. That may be related to the...

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Considering the importance of zoonotic infections by Leishmania spp. and Toxoplasma gondii in Araçatuba region, São Paulo, this study determined the degree of knowledge of residents of Araçatuba about these two diseases. Questionnaires about these diseases were applied to 123 people. Regarding schooling, all the respondents were literate, and 69.9% (86/123) did not attend higher education and 30.8% (37/123) completed an undergraduate degree. Of these, 91.9% (34/37) knew the meaning of the term zoonosis, with significant difference compared to those who were not trained. This word was unknown by 57% (29/123) of total respondents. Most non-graduates, 59.3% (51/86) did not know what is toxoplasmosis and among graduates, 35.1% (13/37) ignored the subject.There were significant difference between these groups. Regarding the prevention of Leishmania infection, a greater proportion of the residents advocated environmental cleanup, the collar repellent and use of citronella. In relation to toxoplasmosis, 54.5% did not know the ways of transmission of this disease and among those with graduate degree, 13 ignoring any transmission medium. When it comes to prevention of this disease, 55.3% (68/123) did not know any prophylactic. In the group of higher education, 14 did not know how to prevent toxoplasmosis. The results of this study show that the majority of respondents are not aware about the mode of transmission of these diseases, especially in relation to toxoplasmosis.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Geociências e Meio Ambiente - IGCE

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Engenharia Civil e Ambiental - FEB

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Os fluidos de corte foram introduzidos nos processos de usinagem com a finalidade de melhorar as características de os processos tribológicos que estão sempre presentes nas superfícies de contato entre a ferramenta e a peça. Devido à multiplicidade de efeitos negativos do corte os fluidos, os resíduos produzem sobre a humanidade e o nosso meio ambiente, na produção moderna, tem havido uma crescente atenção com os cuidados para se selecionar os fluidos de forma eficiente que, além de eficiente deve ser compatível com o ambiente. Além dos requisitos habituais tribológicos de corte, os fluidos devem satisfazer as exigências do ambiente e atender a legislação ambiental imposta pelo Estado ou internacional ISO 14000. Dentre as alternativas, destaca-se a usinagem a seco e a utilização da mínima quantidade de lubrificação (MQL). Este último pode ser utilizado também com adição de água e, consequentemente, consumindo um volume menor de fluido de corte. Este trabalho pretende analisar o comportamento da técnica da MQL com adição de água no processo de retificação de cerâmicas avançadas, assunto pouco divulgado na literatura formal. Este estudo foi feito através da análise da avaliação do comportamento rugosidade do material retificado. Pela avaliação dos resultados obtidos, foi possível avaliar a técnica da MQL com água, interpretando-a como um método alternativo de usinagem menos agressivo ao meio ambiente, já que houve melhoria consistente da rugosidade do material pela técnica da MQL tradicional para a MQL com adição de água e com a limpeza da superfície de corte do rebolo.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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There are several researches on evaluation of urban public space, but not all establish a relationship between the configuration of spaces with the thermal environment, ergonomics and environmental behavior of users. To understand this relationship, the aim of this paper is to present the model DEPAN (Design for Permanence and Attractiveness in niches open spaces of conviviality), based on graphical meshes, which were designed to evaluate the influence of design and ergonomics of open public spaces in the human thermal comfort and the ways in which users appropriate the space. Its applicability is demonstrated through a case study conducted in a park in the city of Bauru-SP. To perform this evaluation public space niches were chosen. They were formed by morphological elements and street furniture and defined by their spatial arrangements. The collected data were incorporated into a Geographic Information System (GIS), which allowed the overlay of meshes. The results indicate that the DEPAN model allows the verification of the spatial characteristics, thermal quality and ergonomic design generated by spaces, as well as the evaluation of the influence of these aspects in the way of using the spaces. The model allows the generation of a classification for every niche and set a value for the level of service offered.

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From the concept of Environmental Education proposed by I.U.C.N. in the 1970’s and considering some of the main teaching methodologies adopted in activities regarding Environmental Education, this paper aims to analyze the methodology named Pedagogy of the Project and presenting some alterations of this method, especially in relation to considered study unity: the watershed. Some teaching techniques are also presented, as well as didactic resources and considerations regarding the questions that can be developed for the students within the teaching or evaluation process. This purpose is complementary to others already existents and can be applied in many environmental or socioeconomics situations.