Formaldehyde and acetaldehyde measurements in urban atmosphere impacted by the use of ethanol biofuel: Metropolitan Area of Sao Paulo (MASP), 2012–2013

Nogueira, Thiago; Dominutti, Pamela; Carvalho, Lilian Rothschild Franco de; Fornaro, Adalgiza; Andrade, María de Fátima

doi:10.1016/j.fuel.2014.05.091

Cited by 55 publications

(56 citation statements)

References 43 publications

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“…alkenes) are major precursors of ozone formation (Atkinson, 2000;Jacob, 2000), and that every A reduction in VOC concentrations was also observed for aldehydes (Martins et al, 2008c;Nogueira et al, 2014, Nogueira et al, 2015b emissions by new cars has also contributed to that reduction (Nogueira et al, 2015a).…”

Section: Ozone Precursorsmentioning

confidence: 99%

Air quality in the megacity of São Paulo: Evolution over the last 30 years and future perspectives

Andrade

Kumar

Freitas

et al. 2017

Atmospheric Environment

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185

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Section: Ozone Precursorsmentioning

confidence: 99%

Air quality in the megacity of São Paulo: Evolution over the last 30 years and future perspectives

Andrade

Kumar

Freitas

et al. 2017

Atmospheric Environment

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237

185

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“…During the summer of 2013/2014 as a whole, there were 27 days on which the relative humidity was below 40%. The quality of the simulation, in comparison with direct measurement, was evaluated with the statistical parameters correlation, bias, root mean square decomposed into two components: Albuquerque et al, 2012) Emission factors for regulated pollutants and hydrocarbons 1 h Measurements inside road traffic tunnels Sánchez-Ccoyllo et al, 2009;Brito et al, 2013;Nogueira et al, 2014;Pérez-martínez et al, 2014) USP, University of São Paulo. systematic RMSDs and unsystematic RMSDu, and agreement index, according to Willmott et al (1985) and Lu et al (1997).…”

Section: Case Study: Summer 2013/2014mentioning

confidence: 99%

Air quality forecasting system for Southeastern Brazil

Andrade

Ynoue

Freitas

et al. 2015

Front. Environ. Sci.

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Southeastern Brazil, the most populous and developed region of the country, faces various environmental problems associated with the growth of its population in urban areas. It is the most industrialized area in the country, comprising the metropolitan areas of São Paulo, Rio de Janeiro, Belo Horizonte, and other major cities. Air quality is a major concern, because the reported concentrations of certain regulated pollutants, typically ozone and fine particulate, have exceeded national standards. Due to the difficulty in taking measurements over many different areas, air quality modeling is a useful tool to estimate air pollutant concentrations. For southeastern Brazil, air quality modeling has been performed mostly with the Brazilian Regional Atmospheric Modeling System with Simplified Photochemical Module and the Weather Research and Forecast with Chemistry models. One of the main objectives was to study the evolution of air quality associated with improved vehicle emission factors in urban areas, the impact of climate change on air quality, and the relationship between pollutant concentrations and health. Knowledge of mobile source emission factors has been continuously expanded by in-tunnel measurements and dynamometer protocols, which provide accurate data as inputs to photochemical air quality models. The spatial distribution of the mobile source emissions was constructed based on open access data related to the streets and traffic distribution. The mobile emission module was combined to the chemistry modeling and this implementation can be an example to be applied to other places that do not have a spatial distribution of this source. Forecasts of pollutant concentrations can inform public policies, including those addressing the effects of pollutants on health of the general population, and studies of the impacts of using different fuels and implementation of emissions regulations programs.

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“…36,[42][43][44][45] A presença dos COV na atmosfera, incentivou estudos fotoquímicos, especiação e reações formadoras de compostos secundários. Os principais COV encontrados em atmosferas externas são o formaldeído e o acetaldeído 43,46,47 , seguido por hidrocarbonetos aromáticos, como BTEX (benzeno, tolueno, etil-benzeno e xilenos) e isoprenos. [48][49][50] Finalmente, a associação de compostos orgânicos ao material particulado é um tema bastante explorado, já que estes materiais funcionam como transportadores desses compostos, carregando-os para áreas remotas.…”

Section: Cenário De Estudo Da Química Ambiental No Brasilunclassified

A Química Ambiental no Brasil nos 40 anos da SBQ

Canela¹,

Fostier²,

Grassi³

2017

Quim. Nova

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ENVIRONMENTAL CHEMISTRY IN BRAZIL IN 40 YEARS IN THE SBQ. This paper aims to present an overview of the ongoing of the Brazilian environmental chemistry over the last forty years inserted in the context of the Brazilian Chemical Society (SBQ). Initially, a brief history presents the main milestones and premise of its "birth" in the 1980s, as well as the set of major actions taken within the SBQ to consolidate and strengthen this area of research. Then, in a separated approach between atmosphere, hydrosphere and lithosphere, we present the evolution of the main topics covered in Environmental Chemistry in Brazil, as well as the contribution of the chemists in the interdisciplinary scenario that constitutes this area. Finally, an overview of the evolution of the teaching of Environmental Chemistry in Brazil is presented.Keywords: environmental chemistry, atmosphere, hydrosphere, lithosphere, HISTÓRICO DA QUÍMICA AMBIENTAL NO BRASILNo Brasil, a Química Ambiental se desenvolveu a partir de um vínculo estreito com a Química Analítica, que se consolidou com base em uma escola consolidada e tradicional, com uma visão clássica sobre seu papel e voltada, em primeira instância, para o desenvolvimento de protocolos analíticos e elucidação de problemas estabelecidos dentro do laboratório. Portanto, boa parte dos primeiros químicos ambientais tinha uma forte ligação com a Química Analítica e eram poucos aqueles com experiência em trabalhos de campo e amostragem ambiental. Nos anos 1980, a pesquisa em Química Ambiental conduzida em nosso país tinha como base o monitoramento de espécies químicas presentes na hidrosfera, atmosfera e biota.1 Existem documentos evidenciando a escassez de atividades de pesquisa dedicadas ao estudo da reatividade química e comportamento de poluentes não apenas nos três compartimentos mencionados anteriormente, mas igualmente em suas interfaces.2 Estas circunstâncias resultaram em um desenvolvimento mais lento da Química Ambiental brasileira, quando comparada com a de outros países, especialmente os desenvolvidos. Não obstante estes aspectos, nos dias atuais a Química Ambiental ocupa posição de destaque no cenário científico nacional, tendo igualmente alcançado projeção internacional. Vários eventos científicos também têm contribuído para isso, tais como as Reuniões Anuais da Sociedade Brasileira CENÁRIO DE ESTUDO DA QUÍMICA AMBIENTAL NO BRASILPara contemplar o cenário das pesquisas em Química Ambiental no Brasil, decidimos dividir os estudos em hidrosfera, atmosfera e litosfera, embora estes compartimentos sejam integrados e não haja um mais importante que o outro e tampouco podem ser vistos separadamente. Além disso, este texto não tem a pretensão de fazer uma revisão exaustiva das publicações nestas áreas dentro da Química Ambiental, mas sim de apresentar um panorama da evolução e dos temas que foram e estão sendo estudados nestes 40 anos da Sociedade Brasileira de Química, apresentando exemplos de alguns destes trabalhos. Atmosfera

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Formaldehyde and acetaldehyde measurements in urban atmosphere impacted by the use of ethanol biofuel: Metropolitan Area of Sao Paulo (MASP), 2012–2013

Cited by 55 publications

References 43 publications

Air quality in the megacity of São Paulo: Evolution over the last 30 years and future perspectives

Air quality in the megacity of São Paulo: Evolution over the last 30 years and future perspectives

Air quality forecasting system for Southeastern Brazil

A Química Ambiental no Brasil nos 40 anos da SBQ

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