Influence of meteorological variables on PM2.5 concentration in Saltillo

Authors

  • Juana María Mendoza-Hernández Departamento de Agrometeorología-Universidad Autónoma Agraria Antonio Narro. Calz. Antonio Narro 1923, Buenavista, Saltillo, Coahuila, México. CP. 25315. Tel. 844 4110200, ext. 1903 y 1904
  • Josué Israel García-López Departamento de Fitomejoramiento-Universidad Autónoma Agraria Antonio Narro. Calz. Antonio Narro 1923, Buenavista, Saltillo, Coahuila, México. CP. 25315. Tel. 844 4110200, ext. 2623
  • Silvia Giromi García-Mendoza Departamento de Agrometeorología-Universidad Autónoma Agraria Antonio Narro. Calz. Antonio Narro 1923, Buenavista, Saltillo, Coahuila, México. CP. 25315. Tel. 844 4110200, ext. 1903 y 1904
  • Alberto Jorge Dávila-Mendoza Departamento de Agrometeorología-Universidad Autónoma Agraria Antonio Narro. Calz. Antonio Narro 1923, Buenavista, Saltillo, Coahuila, México. CP. 25315. Tel. 844 4110200, ext. 1903 y 1904
  • Patricia Adriana de León Martínez Departamento de Agrometeorología-Universidad Autónoma Agraria Antonio Narro. Calz. Antonio Narro 1923, Buenavista, Saltillo, Coahuila, México. CP. 25315. Tel. 844 4110200, ext. 1903 y 1904

DOI:

https://doi.org/10.29312/remexca.v16i30.4045

Keywords:

air quality, boundary layer, particulate matter, pollution

Abstract

The present work studied the relationship of meteorological conditions with the concentration of particulate matter with a diameter equal to or less than 2.5 μm (PM2.5) in the city of Saltillo, Coahuila, intending to identify the areas and times with the highest levels of pollution. Data on temperature, wind speed, relative humidity, solar radiation, and atmospheric pressure, as well as the daily concentration of PM2.5 particles, were collected through a network of ten air quality monitoring sensors and two atmospheric observatories, distributed throughout the city, during 2024. First, the data from the sensor network were analyzed, revealing that the Pearson coefficient showed a high or moderate correlation between the concentration recorded by the sensors, regardless of location, and that the West Zone presented the most days with low air quality. Subsequently, the data from the observatories were analyzed to relate meteorological conditions with daily average PM2.5 concentrations, and according to the behavior of PM2.5 per hour, it was found that meteorological factors do not present a significant relationship with PM2.5 concentration, when compared with the daily average; nevertheless, when the concentration throughout the day was observed, a relationship with atmospheric parameters was found.

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Published

2025-10-13

How to Cite

Mendoza-Hernández, Juana María, Josué Israel García-López, Silvia Giromi García-Mendoza, Alberto Jorge Dávila-Mendoza, and Patricia Adriana de León Martínez. 2025. “Influence of Meteorological Variables on PM2.5 Concentration in Saltillo”. Revista Mexicana De Ciencias Agrícolas 16 (30). México, ME:e4045. https://doi.org/10.29312/remexca.v16i30.4045.

Issue

No. 30 (2025): Especial

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Articles

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