Pollutant emissions and their contribution to local and regional air quality at the industrial area of Tula were studied during a four-week period as part of the MILAGRO initiative. A recurrent shallow stable layer was observed in the morning favoring air pollutants accumulation in the lower 100 m atmospheric layer. In the afternoon the mixing layer height reached 3000 m, along with a featuring low level jet which was responsible of transporting air pollutants at regional scales. Average PMat Jasso (JAS) and Tepeji (TEP) was 75.1 and 36.8 g/m3, respectively while average PMwas 31.0 and 25.7 g/m3. JAS was highly impacted by local limestone dust, while TEP was a receptor of major sources of combustion emissions with 70% of the PMconstituted by PM Average hourly aerosol light absorption was 22 Mm -1, while aerosol scattering (76 Mm-1) was higher compared to a rural site but much lower than at Mexico City. δ 13 C values in the epiphyte Tillandsia recurvata show that the emission plume directly affects the SW sector of Mezquital Valley and is then constrained by a mountain range preventing its dispersion. Air pollutants may exacerbate acute and chronic adverse health effects in this region. © 2013 G. Sosa et al.
CITATION STYLE
Sosa, G., Vega, E., González-Avalos, E., Mora, V., & López-Veneroni, D. (2013). Air pollutant characterization in Tula industrial corridor, central Mexico, during the MILAGRO study. BioMed Research International, 2013. https://doi.org/10.1155/2013/521728
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