Air quality in Mexico City and the surrounding State of Mexico is a concern, according to authorities. Various pollutants are present in the atmosphere, many of which are inhaled by residents. Officials are issuing warnings regarding oxygen levels in the capital and its metropolitan area. The report details conditions by municipality and borough, indicating a widespread issue. This alert emphasizes the importance of monitoring air quality for public health. Residents are advised to take necessary precautions due to the presence of these contaminants. Further details on specific areas are available in the complete report.