CAMe Lifts Ozone Environmental Contingency and Double Hoy No Circula in Mexico Valley

Web Editor

April 24, 2025

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Background on CAMe and its Relevance

The Comisión Ambiental de la Megalópolis (CAMe) is a crucial environmental organization responsible for monitoring and managing air quality in the Mexico City Metropolitan Area, also known as the Valley of Mexico (ZMVM). This region is home to over 21 million people, making CAMe’s role vital for the health and well-being of this massive population.

Details of the Announcement

In a report released at 18:00 local time, CAMe announced the suspension of the first phase of the ozone environmental contingency. This decision also cancels the Double Hoy No Circula measure, which restricts vehicle usage on alternate days to reduce emissions and improve air quality.

According to CAMe, ozone concentrations have remained below the thresholds set by the Programa de Contingencias Ambientales Atmosféricas. Furthermore, meteorological models predict improved ventilation conditions in central Mexico by tomorrow, Friday.

Factors Contributing to Improved Air Quality

The shift in high-pressure systems northward across central Mexico has led to decreased atmospheric stability over the Valley of Mexico, resulting in increased afternoon ventilation. This favorable dispersion of pollutants has contributed to the improved air quality conditions, as explained by CAMe.

CAMe’s Recommendations for the Public

Despite the positive developments, CAMe urges the public to stay informed about air quality in the ZMVM and adhere to health protection recommendations. The organization will continue monitoring weather conditions and air quality to ensure the region’s residents have access to accurate, up-to-date information.

Key Questions and Answers

  • What is CAMe? The Comisión Ambiental de la Megalópolis (CAMe) is an environmental organization responsible for monitoring and managing air quality in the Mexico City Metropolitan Area, also known as the Valley of Mexico (ZMVM).
  • What measures were lifted? CAMe suspended the first phase of ozone environmental contingency and canceled the Double Hoy No Circula measure, which restricts vehicle usage on alternate days.
  • Why were these measures lifted? Ozone concentrations have remained below established thresholds, and meteorological models predict improved ventilation conditions in central Mexico.
  • What should the public do now? CAMe recommends staying informed about air quality and following health protection recommendations, as the organization continues monitoring weather conditions and air quality.