Journal ArticleDOI
Air quality in the megacity of Sao Paulo: Evolution over the last 30 years and future perspectives
Maria de Fátima Andrade,Prashant Kumar,Edmilson Dias de Freitas,Rita Yuri Ynoue,Jorge Martins,Leila Droprinchinski Martins,Thiago Assis Rodrigues Nogueira,Pedro José Pérez-Martínez,Regina Maura de Miranda,Taciana Toledo de Almeida Albuquerque,Fábio Luiz Teixeira Gonçalves,Beatriz Oyama,Yang Zhang +12 more
TLDR
A comprehensive review of published results from the last 30 years regarding the sources and atmospheric characteristics of particles and ozone in the Metropolitan Area of Sao Paulo (MASP) is presented in this paper.About:
This article is published in Atmospheric Environment.The article was published on 2017-06-01. It has received 168 citations till now. The article focuses on the topics: Air quality index & Megacity.read more
Citations
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Journal ArticleDOI
COVID-19 pandemic: Impacts on the air quality during the partial lockdown in São Paulo state, Brazil.
TL;DR: Although the partial lockdown has contributed to a positive impact on air quality, it is important to take into account the negative impacts on social aspects, considering the deaths caused by COVID-19 and also the dramatic economic effects.
Journal ArticleDOI
Significant impacts of COVID-19 lockdown on urban air pollution in Kolkata (India) and amelioration of environmental health.
TL;DR: The result shows that the pollutants like CO, NO2 and SO2 are significantly decreased, while the average level of O3 has been slightly increased in 2020 during the lockdown due to close-down of all industrial and transport activities.
Journal ArticleDOI
Human exposure to ozone in school and office indoor environments
TL;DR: The existing means for reducing ozone and ozone reaction products in school and office settings are as follows: reduce penetration of outdoor ozone indoors by filtering ozone from the supply air, limit the use of printers, photocopiers, and other devices and appliances that emit ozone indoors, and limit gas-phase reactions.
Journal ArticleDOI
Multi-isotopic fingerprints (Pb, Zn, Cu) applied for urban aerosol source apportionment and discrimination.
TL;DR: Zinc and lead isotopic compositions of PM from Sao Paulo showed diurnal variations indicating the industrial contributions carried by cold fronts and road dust suspension associated to high wind speeds and traffic pattern.
Journal ArticleDOI
The Impact of COVID-19 Partial Lockdown on Primary Pollutant Concentrations in the Atmosphere of Rio de Janeiro and São Paulo Megacities (Brazil).
Bruno Siciliano,Giovanna Carvalho,Cleyton Martins da Silva,Cleyton Martins da Silva,Graciela Arbilla +4 more
TL;DR: The impact of the social distancing measures on the concentrations of the three main primary air pollutants was analyzed and CO levels showed the most significant reductions since it is related to light-duty vehicular emissions.
References
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Atmospheric chemistry of VOCs and NOx
TL;DR: The present status of knowledge of the gas phase reactions of inorganic Ox, Hox and NOx species and of selected classes of volatile organic compounds (VOCs) and their degradation products in the troposphere is discussed in this paper.
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Fully coupled “online” chemistry within the WRF model
Georg Grell,Steven E. Peckham,Rainer Schmitz,Stuart A. McKeen,Gregory J. Frost,William C. Skamarock,Brian Eder +6 more
TL;DR: The WRF/Chem model is statistically better skilled in forecasting O3 than MM5/Chem, with no appreciable differences between models in terms of bias with the observations, and consistently exhibits better skill at forecasting the O3 precursors CO and NOy at all of the surface sites.
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A satellite view of aerosols in the climate system
TL;DR: Increases in aerosol concentration and changes in their composition, driven by industrialization and an expanding population, may adversely affect the Earth's climate and water supply.
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A comprehensive meteorological modeling system?RAMS
Roger A. Pielke,William R. Cotton,Robert L. Walko,Craig J. Tremback,W. A. Lyons,Lewis D. Grasso,Melville E. Nicholls,M. D. Moran,Douglas A. Wesley,T. J. Lee,J. H. Copeland +10 more
TL;DR: In this paper, a range of applications of the Regional Atmospheric Modeling System (RAMS), a comprehensive mesoscale meterological modeling system, are discussed, including large eddy simulations (LES) and simulations of thunderstorms, cumulus fields, mesoscales, convective systems, mid-latitude cirrus clouds, winter storms, mechanically and thermally-forced meso-scale systems, and mesoscopic atmospheric disperision.
Journal ArticleDOI
Smoking Rain Clouds over the Amazon
Meinrat O. Andreae,Daniel Rosenfeld,Paulo Artaxo,Alexandre Araújo Costa,Göran Frank,Karla Longo,M. A. F. Silva-Dias +6 more
TL;DR: Heavy smoke from forest fires in the Amazon was observed to reduce cloud droplet size and so delay the onset of precipitation, which affects the water cycle, the pollution burden of the atmosphere, and the dynamics of atmospheric circulation.