Realtime air quality around the world

The Real-time Air Quality Index displays a map showing the live readings of air quality sensors around the world. You can look up any city you are interested in, or view rankings of different countries. The last time I checked, Bahçelievler, Türkiye is experiencing the worst air quality (537: hazardous) and Ciudad Guayanam, Venezuela has the best (5, good). — MF