Environmental Contingency Remains in Mexico City and Metropolitan Area

Web Editor

April 24, 2025

a large building with a flag and a large sign in front of it that says cmx in front of a large build

Comisión Ambiental de la Megalópolis Issues Alert for High Ozone Levels

The Comisión Ambiental de la Megalópolis (Environmental Commission of the Metropolitan Area) announced on Thursday that the Phase I Environmental Contingency for ozone remains in effect in the Mexico City Metropolitan Area. According to the City of Mexico Atmospheric Monitoring System, unfavorable weather conditions will continue to hinder the dispersion of pollutants.

Purpose and Impact

This measure aims to reduce the population’s exposure to high levels of contamination, minimize health risks, and decrease the emission of pollutants. The Comisión Ambiental de la Megalópolis plays a crucial role in safeguarding the environment and public health in one of the world’s most populous metropolitan areas, which includes Mexico City and its surrounding municipalities.

Recomendaciones para la población

To protect the health of residents and contribute to improving air quality, the authorities recommend the following actions:

  • Avoid outdoor activities, civic, recreational, or cultural events between 1 PM and 5 PM, as these are the peak hours for ozone concentration.
  • Public and private institutions are advised to postpone or cancel events scheduled during these hours.
  • Mass gatherings, sports events, or cultural activities planned for the afternoon should be rescheduled to ensure the well-being of attendees.
  • Smoking, especially in enclosed spaces, should be avoided to minimize personal exposure to pollutants and support cleaner air.

Key Questions and Answers

  • What is the current environmental situation in Mexico City and the Metropolitan Area? The Comisión Ambiental de la Megalópolis has declared Phase I Environmental Contingency due to high ozone levels, which are exacerbated by unfavorable weather conditions.
  • Why are these recommendations important? Following these guidelines helps reduce the population’s exposure to pollutants, minimizes health risks, and contributes to decreasing ozone concentration in the air.
  • Who is the Comisión Ambiental de la Megalópolis? It is an environmental authority responsible for monitoring and managing air quality in the Mexico City Metropolitan Area, ensuring public health protection and environmental sustainability.
  • What can individuals do to help improve air quality? By adhering to the recommended actions, such as avoiding outdoor activities during peak pollution hours and refraining from smoking, individuals can play a significant role in enhancing air quality and safeguarding their health.