In the past week, air quality in the Valley of Mexico has deteriorated significantly, registering high levels of pollutants that activated environmental contingency measures. The Megalopolis Environmental Commission (CAMe) has urged residents to take precautions and avoid activities contributing to environmental pollution. Experts from the National Autonomous University of Mexico (UNAM) have analyzed the sectors most responsible for these emissions, particularly focusing on vehicle emissions as a primary contributor to carbon dioxide (CO2) pollution in Mexico City.

The National Autonomous University of Mexico (UNAM) has identified the vehicular sector as the top contributor to air pollution in the city, a finding echoed by Dr. José Agustín García Reynoso, a researcher at the Institute of Atmospheric Sciences and Climate Change. This implication underscores the ongoing challenges that urban areas like Mexico City face in managing air quality amidst increasing vehicular traffic. Given the city's large population and density, controlling emissions from vehicles remains a significant hurdle for environmental authorities.

The revelations from UNAM call for urgent policy responses, such as improving public transport options and implementing stricter emissions regulations. As air quality continues to be a pressing public health issue, the findings accentuate the need for collective efforts among government bodies, researchers, and the public to address pollution and foster sustainable urban living environments. Without comprehensive strategies to tackle these pollution sources, the air quality concerns in Mexico City are likely to persist, posing long-term health risks to its inhabitants.