Autores: Oscar Peralta, Abraham Ortínez-Alvarez, Roberto Basaldud, Naxieli Santiago, Harry Alvarez-Ospina, Karen de la Cruz, Valter Barrera, María de la Luz Espinosa, Isabel Saavedra, Telma Castro, Amparo Martínez-Arroyo, Víctor H.Páramo, Luis G.Ruíz-Suárez, Felipe A.Vazquez-Galvez, ArturoGavilán

* Departamento de Ciencias Ambientales |

Abstract

tmospheric black carbon concentrations were measured at two urban sites (Mexico City and Monterrey), one suburban site (Juriquilla) and one high-altitude site (Altzomoni) in Mexico during 2015 and part of 2016. Black carbon concentrations were compared against other criteria gases finding a strong correlation with carbon monoxide at the urban sites. The carbon monoxide-black carbon correlation for the Mexico City site is 0.77. Urban sites had an average black carbon concentration of above 2.5 μg m⁻³, the suburban site 0.75 μg m⁻³, and the high-altitude site 0.27 μg m⁻³. Compared to other studies, the average levels are comparable, and the urban and suburban locations showed a trend towards increased atmospheric black carbon concentrations at year end. Other urban places (Guadalajara, Cuernavaca, and Iztapalapa) reported black carbon concentrations, but for less than a year. For the first time, a Latin-American country (Mexico) measured black carbon continuously at several sites for a year applying the same data quality assurance.