Spatio-Temporal Representativeness of Air Quality Monitoring Stations in Mexico City: Implications for Public Health

Overview

Journal Front Public Health

Specialty Public Health

Date 2021 Feb 15

PMID 33585375

Authors

Karol Baca-Lopez

Cristobal Fresno

Jesus Espinal-Enriquez

Mireya Martinez-Garcia

Miguel Angel Camacho-Lopez

Miriam V Flores-Merino

Enrique Hernandez-Lemus

Affiliations

Soon will be listed here.

Abstract

Assessment of the air quality in metropolitan areas is a major challenge in environmental sciences. Issues related include the distribution of monitoring stations, their spatial range, or missing information. In Mexico City, stations have been located spanning the entire Metropolitan zone for pollutants, such as CO, NO, O, SO, PM, PM, NO, NO , and PM . A fundamental question is whether the number and location of such stations are adequate to optimally cover the city. By analyzing spatio-temporal correlations for pollutant measurements, we evaluated the distribution and performance of monitoring stations in Mexico City from 2009 to 2018. Based on our analysis, air quality evaluation of those contaminants is adequate to cover the 16 boroughs of Mexico City, with the exception of SO, since its spatial range is shorter than the one needed to cover the whole surface of the city. We observed that NO and NO concentrations must be taken into account since their long-range dispersion may have relevant consequences for public health. With this approach, we may be able to propose policy based on systematic criteria to locate new monitoring stations.

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