This study analyzes tropospheric column ozone variability in the southern hemisphere as a function of ozone transport from the stratosphere to the troposphere and photochemical formation. Geographically, the study area was ...

The Antarctic Ozone Hole (AOH) is a cyclical phenomenon occurring during the austral spring, where a temporary reduction in ozone content is observed in the Antarctic region. However, ozone-depleted air masses can break ...

The increase of ultraviolet solar radiation that reaches the Earth’s surface as a consequence of the decrease in the total ozone column has a negative impact on human health. Ozone depletion events that affect southern ...

In the Metropolitan Area of Sao Paulo (MASP), located in southeastern Brazil, surface ozone concentrations are often well above the national air quality standards. In this experimental study, we attempted to characterize ...

Current understanding of the long-term ozone trends is described. Of particular concern is an assessment of the quality of the available measurements, both ground and satellite based. Trends in total ozone have been ...

In this Dissertation were identified events of influence of the Antarctic ozone hole over the South of Brazil that occurred in the period between 1979 and 2011. For this, we analyzed the daily average data of total ozone ...

It was identified Stratosphere-Troposphere Exchange (STE) events on Southern South America and their effects in the Ozone Total Column (OTC) above Central Region of Rio Grande do Sul (CRRS), Brazil, in the period between ...

In this study, we analyzed ozone and carbon monoxide profiles measured, during landing and taking off over Caracas, in Venezuela, and Rio de Janeiro and São Paulo, in Brazil, by commercial aircrafts from the MOZAIC/IAGOS ...