Study area and location of sampling sites A location of Nuevo Leon in Mexico B location of the MMA inside Nuevo Leon C location of sampling sites according with the air pollution levels.

 
 
  Part of: Meléndez-Jaramillo E, Sánchez-Castillo L, Segura Martínez MaTJ, Sánchez-Reyes UJ (2023) Vegetation changes along an urbanisation and atmospheric pollution gradient in Mexico. Nature Conservation 54: 179-202. https://doi.org/10.3897/natureconservation.54.110257