On February 11, 2023, Mexico City reached alarming levels of pollution that could have warranted the implementation of a Double Hoy No Circula (a stricter vehicle restriction program). The air quality in Coyoacán peaked at 156 particles per billion of ozone, prompting concerns from the local environmental authorities and residents alike. However, the situation took a turn for the better when strong winds blew through the city later that afternoon, helping to disperse the pollutants and reduce the concentration of harmful particles in the air.

Due to this improvement, the Commission for Environmental Cooperation of the Megalopolis (CAMe) confirmed that the environmental contingency would not apply, and the Double Hoy No Circula measure would not be enforced on February 12. This decision provided a sense of relief for residents who rely on their vehicles for transportation and feared the inconvenience of harsher restrictions amid already challenging traffic conditions in the capital.

The episode highlights ongoing challenges in managing air quality in Mexico City, which experiences high levels of pollution due to a combination of vehicular emissions, industrial discharges, and geographical factors. Regular interventions, like the Hoy No Circula program, are integral to public health efforts, especially in a city that often battles environmental concerns, underscoring the importance of continual monitoring and potential contingency plans to protect its inhabitants.