Heavy Metal Content in PM2.5 Air Samples Collected in the Metropolitan Area of Monterrey, México
2015
Badillo-Castañeda, Christian Tadeo | Garza-Ocañas, Lourdes | Garza-Ulloa, M. C Humberto | Zanatta-Calderón, María Teresa | Caballero-Quintero, Adolfo
The air PM ₂.₅ concentration and its heavy metal content (Fe, Pb, Mn, Ni, As) were measured in the Metropolitan Area of Monterrey, Méxicoin Mexico, an area that is characterized by both very active and diverse industrial activity and intense highway traffic and industrial activity. The 24-h PM ₂.₅ samples were collected in two different zones during a 1-year-long measurement program (February 2008–February 2009). The year PM ₂.₅ average was above 15 μg/m ³ exceeding Mexican and international standards. The difference of PM ₂.₅ in each zone was not statistically significant. The greatest metal content was for iron, followed by lead, manganese, nickel and arsenic. The difference in metal content for Pb, Mn, and As was statistically significant.
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