Jorge Mendez-Astudillo This email address is being protected from spambots. You need JavaScript enabled to view it.1,2, Ernesto Caetano1, Karla Pereyra-Castro3 

1 Instituto de Geografía, Universidad Nacional Autónoma de México, Mexico City, Mexico
2 Instituto de Investigaciones Económicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
3 Posgrado en Ciencias de la Tierra, Instituto de Geografía, Universidad Nacional Autónoma de México, Mexico City, Mexico


Received: October 12, 2021
Revised: June 27, 2022
Accepted: June 28, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.210278  


Cite this article:

Mendez-Astudillo, J., Caetano, E., Pereyra-Castro, K. (2022). Synergy between the Urban Heat Island and the Urban Pollution Island in Mexico City during the Dry Season. Aerosol Air Qual. Res. 22, 210278. https://doi.org/10.4209/aaqr.210278


HIGHLIGHTS 

  • The Surface and Air Urban Heat Island in Greater Mexico City (GMC) are assessed.
  • Urban Pollution in GMC is evaluated with PM10 and PM2.5 concentrations.
  • Urban Pollution Island in GMC is observed with MODIS-based AOD.
  • No significant correlation between PM10 and UHI has been found in GMC.
  • The correlation between PM2.5 and UHI is significant during dry season overnight.
 

ABSTRACT


The interaction between Urban Heat Island (UHI) and Urban Pollution Island (UPI) is relevant for urban studies as well as for health studies. Both phenomena have not been widely studied in Greater Mexico City (GMC). Therefore, we study the interaction between UHI and UPI in GMC where urban and rural areas are not well defined. Also, long-range transport of pollution affects GMC pollution concentration. We used 5-year data (2015–2019) from weather stations to measure the Air UHI (AUHI) and Landsat 8 data to assess the Surface UHI (SUHI). The Urban Pollution (UP) has been assessed with Particulate Matter PM10 and PM2.5 concentrations measured near the surface by air quality monitoring stations, the Aerosol Optical Depth has been used as a measure of UP. During the dry season (February–May), at night (20:00–07:59 h LT), a positive correlation (statistically significant) between the UHI and UP has been found (r = 0.39) for the UPI defined with PM2.5 between the urban and rural stations. Whereas a significant correlation (r = 0.50) has been found between UPI defined with PM10 between the urban and rural station during the autumn.


Keywords: Urban heat island, Air quality, Particulate matter, Aerosol Optical Depth, Mexico




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