Environmental authorities maintain the Environmental Contingency in the Metropolitan Area of ​​the Valley of Mexico due to high concentrations of pollutants, especially ozone, and unfavorable atmospheric conditions for its dispersion. The measure seeks to reduce the population's exposure and reduce emissions in moments of greatest risk.
Under the coordination of CAMe and Sedema, air quality management measures, mobility adjustments, and health recommendations have been implemented. While the episode persists, the public is asked to follow official notices and adopt habits that help mitigate exposure, with special attention to the Mexico's valley.
Circulation measures during the contingency
During the contingency, the Hoy No Circula program operates with the restrictions established for the date and type of sticker. On this day, cars with plate termination 1 and 2, green sticker and verification hologram 1 and 2, including foreign vehicles. The usual application schedule remains the same. 05:00 - 22:00 hours.
- Not in circulation: ending 1 and 2.
- Applies to vehicles with hologram 1 and 2 and green sticker.
- Includes foreign cars entering the ZMVM.
- Program validity: from 05:00 a.m. to 22:00 p.m.
These provisions apply to Mexico City and the State of Mexico, and also apply, under the terms established by each jurisdiction, to the following entities in the megalopolis: Querétaro, Hidalgo, Morelos, Tlaxcala and Puebla.
Health recommendations and activities to avoid
During peak hours, especially between 13:00 and 19:00, it is advisable to limit time spent outdoors to reduce inhalation of pollutants. Sensitive groups—children, the elderly, and those with respiratory or heart conditions—should take extra precautions and prioritize ventilated and clean spaces.
- Avoid strenuous outdoor exercise in the area with the highest pollution levels.
- Suspend outdoor civic, cultural, or recreational activities between 13:00 p.m. and 19:00 p.m.
- Postpone sporting events or large outdoor events at the same time.
- No smoking, especially in closed spaces.
Air quality activation and monitoring criteria
The ozone air quality regulations establish a target value of up to 90 parts per billion (ppb) for one hour, no more than once a year. In the ZMVM, the CAMe declares an environmental contingency when levels significantly exceed the standard and a maximum of 155 ppb or moreDuring these episodes, surveillance is reinforced with the monitoring network and reports are disseminated in real time.
Exempt vehicles and essential services
Cars with holograms are exempt from restrictions. 0 and 00, as well as hybrid or electric vehicles. Vehicles with disability plates, school buses, those transporting perishable goods, and/or dangerous residues, and the Public Security, Civil Protection, and Health units. Likewise, those that operate with natural gas and those that provide services are exempt. urban services.
Fines and penalties in case of non-compliance
Failure to comply with the provisions of Hoy No Circula during the contingency may lead to economic sanctions of 20 to 30 UMAFor reference, the current value of the Unit of Measurement and Update is 113.14 pesos, so the fine is calculated by multiplying that amount by the number of UMAs applicable according to the infringement.
Health effects and sources of pollution
Poor air quality is associated with thousands of premature deaths annually and an increase in respiratory and cardiovascular diseases. Children, the elderly, and those with preexisting health conditions are especially vulnerable. In the ZMVM, motorized traffic is a main source of emissions, which is why measures such as vehicle verification and the Hoy No Circula are being reinforced.
While the contingency in the Valley of Mexico remains in effect, it is advisable stay informed through official channels, respect movement restrictions, and avoid outdoor exertion during critical times; authorities will update the measures and the end of the episode as weather conditions evolve.
