A map shows how just 17 per cent of cities meet air pollution guidelines. On this map, only blue circles show areas with levels of air pollution considered safe by the WHO India was home to seven ...

According to IQAir.com, New York City had the world's worst air quality of any major city in the world back on June 7, 2023, with an AQI rating over 350, more than twice as high as Dubai.

Detroit currently ranks as the city with the worst air quality in the world as smoke from Canadian wildfires continues to impact the region, according to IQAir, creating health concerns for residents.