Air Quality

The National Meteorological Service anticipates three to five heat waves in central Mexico from March to May 2026, with temperatures up to 4 degrees Celsius above average. The Megalopolis Environmental Commission estimates this could trigger up to 15 days of ozone contingency, imposing stricter vehicle restrictions in Mexico City and the State of Mexico.

2026년 03월 11일 AI에 의해 보고됨

For the second time this year, a strong sulphur smell has affected Johannesburg, leading to health complaints from residents. The City of Johannesburg detected elevated levels of hydrogen sulphide and sulphur dioxide, likely originating from industrial activities in Mpumalanga's Highveld area. Questions persist about monitoring and enforcement against major polluters.

Researchers have discovered far higher levels of microplastics and nanoplastics in city air than previously estimated, highlighting the atmosphere as a key pathway for plastic pollution. Using a new automated technique, scientists in China measured these tiny particles in Guangzhou and Xi'an, revealing concentrations two to six orders of magnitude above earlier reports. Road dust and rainfall significantly influence how these plastics move through the air.

2026년 01월 12일 AI에 의해 보고됨

인접 허베이성 농촌 주민들은 석탄에서 전환 후 집을 충분히 데우기 부담스럽다고 말한다. 올해 겨울 북중국 주간 기온이 자주 영하로 머물러 많은 농촌 주민들이 추위를 견디는 수밖에 없다.

Delhi’s air quality worsened to an AQI of 353—classified as 'very poor'—on December 27, exacerbated by dense fog trapping pollutants, according to the Central Pollution Control Board.

2025년 12월 26일 AI에 의해 보고됨

Following the activation of Phase I on December 25 due to Christmas fireworks and bonfires, Mexico State suspended the Atmospheric Environmental Contingency on December 26, 2025, as PM2.5 levels improved to acceptable ranges. The Alert Phase persists in Valle de Toluca and Santiago Tianguistenco due to ongoing pollutants, with normal Hoy No Circula rules in effect—no double restrictions.