Effect of Nearby Forest Fires on Ground Level Ozone Concentrations in Santiago, Chile
Author
dc.contributor.author
Rubio, María A.
Author
dc.contributor.author
Lissi Gervaso, Eduardo A.
Author
dc.contributor.author
Gramsch, Ernesto
Author
dc.contributor.author
Garreaud Salazar, René
Admission date
dc.date.accessioned
2016-01-29T14:39:23Z
Available date
dc.date.available
2016-01-29T14:39:23Z
Publication date
dc.date.issued
2015
Cita de ítem
dc.identifier.citation
Atmosphere 2015, 6, 1926–1938
en_US
Identifier
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DOI: 10.3390/atmos6121838
Identifier
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https://repositorio.uchile.cl/handle/2250/136900
General note
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Artículo de publicación ISI
en_US
Abstract
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On 4 and 8 January 2014, at the height of the austral summer, intense wildfires in forests and dry pastures occurred in the Melipilla sector, located about 70 km to the southwest of Santiago, the Chilean capital, affecting more than 6 million inhabitants. Low level winds transported the forest fire plume towards Santiago causing a striking decrease in visibility and a marked increase in the concentration of both primary (PM10 and CO) and secondary (Ozone) pollutants in the urban atmosphere. In particular, ozone maximum concentrations in the Santiago basin reached hourly averages well above 80 ppb, the national air quality standard. This ozone increase took place at the three sampling sites considered in the present study. These large values can be explained in terms of high NOx concentrations and NO2/NO ratios in biomass burning emissions.