PMID: 11924549Apr 2, 2002Paper

Impact of wildfires on the air quality of Mexico City, 1992-1999

Environmental Pollution
A H BravoR M I Saavedra

Abstract

Wildfires in Mexico increased in 1998, compared to information for the last 6 years. The average number of wildfires in the Mexico City Metropolitan Area (MCMA) for this year (1998) were 58% (1916 events) more events than the 1992-1997 (average cases 1217 events). Mexico City affected area corresponds to 1.3% of the national affected area. The purpose of this paper is to evaluate the impact on the particles air quality due to the wildfire emissions at the MCMA and surrounding areas. Using the corresponding US EPA emission factors for wildfires, the tons of particulate matter, nitrogen oxides, carbon monoxide, and total hydrocarbons emitted by this source for the MCMA case were obtained. The calculated emissions during wildfires were correlated with the levels of particles present in the atmosphere. A comparison of the concentration levels of particles, both as PM10 as well as TSP, were made for the years 1992-1998, during wet and dry season, being March, April, and May the critical months due to the presence of wildfires. A good correlation is observed between particulate wildfire emissions and particulate air quality, being stronger for TSP. A clear impact on the particles air quality due to the increase of wildfires in 1998, ...Continue Reading

Citations

Jan 17, 2012·Environmental Pollution·Darrel BaumgardnerCarlos Ochoa
Sep 29, 2017·Journal of Geophysical Research. Atmospheres : JGR·Marco MoraArmin Sorooshian
Sep 17, 2020·International Journal of Environmental Research and Public Health·Walter MazzuccoFrancesco Vitale

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