Overview
- Peru’s Senamhi projects a red alert for unhealthy PM2.5 in Lima’s San Juan de Lurigancho and Comas during the early hours of December 25, citing expected concentrations above 55.5 µg/m³ and last year’s spikes measured by REMCA.
- Mexico’s CAMe urges residents of the Valley of Mexico and Toluca to avoid fireworks and bonfires due to winter stagnation that could trigger environmental contingencies, advising people to stay indoors with windows closed, limit outdoor exertion and use masks if needed.
- Buenos Aires announces a citywide prohibition on audible fireworks, with silent and light-only displays still allowed, as Mayor Jorge Macri directs the environmental agency to enforce the new “calm zone” standard across public events.
- Municipal authorities in Spain tighten holiday controls with permits, age-based sales limits (F1–F3), time windows and fines ranging from hundreds to hundreds of thousands of euros, while Argentine cities require formal seller habilitation, inspections and curb street vending.
- Public-health experts highlight heightened risks from PM2.5 for children, older adults, pregnant people and those with respiratory or cardiovascular disease, and note additional distress for people with autism, veterans and pets and wildlife.