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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Numerical Study of Meteorological Factors for Tropospheric Nocturnal Ozone Increase in the Metropolitan Area of Sao Paulo

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Urbina Guerrero, Viviana Vanesa [1] ; de Morais, Marcos Vinicius Bueno [2] ; de Freitas, Edmilson Dias [1] ; Martins, Leila Droprinchinski [3]
Total Authors: 4
[1] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, BR-05508090 Sao Paulo - Brazil
[2] Univ Catolica Maule, Fac Ciencias Ingn, Dept Obras Civiles, Ave San Miguel 3605, Talca 3480112 - Chile
[3] Univ Tecnol Fed Parana, Dept Chem, Pioneiros Ave 3131, BR-86036370 Londrina, Parana - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ATMOSPHERE; v. 12, n. 2 FEB 2021.
Web of Science Citations: 0

One of the central problems in large cities is air pollution, mainly caused by vehicular emissions. Tropospheric ozone is an atmospheric oxidizing gas that forms in minimal amounts naturally, affecting peoples' health. This pollutant is formed by the NO2 photolysis, creating a main peak during the day. Nighttime secondary peaks occur in several parts of the world, but their intensity and frequency depend on the local condition. In this sense, this works aims to study the local characteristics for tropospheric nocturnal ozone levels in the Metropolitan Area of Sao Paulo, in Brazil, using the Simple Photochemical Module coupled to the Brazilian Developments on the Regional Atmospheric Modeling System. For this, three different situations of nocturnal occurrence were studied. The results show that the nocturnal maximum of ozone concentrations is related to the vertical transport of this pollutant from higher levels of the atmosphere to the surface and is not related to the synoptic condition. (AU)

FAPESP's process: 17/17047-0 - Aerosol and clouds life cycles in Amazonia: biogenic emissions, biomass burning and impacts on ecosystem
Grantee:Paulo Eduardo Artaxo Netto
Support Opportunities: Research Program on Global Climate Change - Thematic Grants
FAPESP's process: 16/18438-0 - São Paulo Metropolitan Area, jointly tracking climate change and air quality - METROCLIMA-MASP
Grantee:Maria de Fátima Andrade
Support Opportunities: Research Program on Global Climate Change - Thematic Grants
FAPESP's process: 11/01040-0 - Atmospheric conditions associated with pollution dispersion over the cities of Sao Paulo and Santiago
Grantee:Viviana Vanesa Urbina Guerrero
Support Opportunities: Scholarships in Brazil - Doctorate