Ozone Season 2025: Causes and End Date in the ZMVM

Web Editor

May 4, 2025

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Understanding Ozone and Its Impact

Each year, the Zona Metropolitana del Valle de México (ZMVM) experiences a dry and warm period, characterized by low winds, minimal humidity, and high solar radiation. This period spans from February to June, creating the ozone season.

The Comisión Ambiental de la Megalópolis (CAMe) explains that ozone can cause respiratory system irritation and pulmonary function deterioration. It is one of the two pollutants considered within the Programa de Contingencias Ambientales Atmosféricas (PCAA) of the ZMVM.

How You Can Help Reduce Ozone Levels

You can contribute to reducing ozone-forming emissions by following these simple steps if you own a vehicle:

  • Ensure your vehicle is in optimal condition, including well-maintained tires.
  • Fill up your gas tank during the night.
  • Limit vehicle use: Avoid using it for short distances, and consider carpooling if possible.

Additionally, avoid open fires and burning trash, tires, or other materials. Stay informed about environmental contingencies on the CAMe website (click here) or check the AIRE app for air quality index information (click here).

Stay Informed and Engaged

Follow CAMe on social media for updates:

  • @CAMegalopolis on Twitter
  • www.facebook.com/pg/CAMegalopolis on Facebook

Key Questions and Answers

  • Q: What is the ozone season in ZMVM? A: The ozone season in ZMVM is an annual period from February to June, marked by dry, warm weather conditions that contribute to higher ozone levels.
  • Q: How does ozone affect human health? A: Ozone can cause respiratory system irritation and deteriorate pulmonary function.
  • Q: What can individuals do to help reduce ozone levels? A: Maintain vehicles in good condition, fill up gas tanks at night, limit short-distance vehicle use, and consider carpooling.
  • Q: Where can I find information on ozone levels and environmental contingencies? A: Visit the CAMe website (click here) or check the AIRE app for air quality index updates (click here).