Air quality categories checked against the Ministry of Environment's ISPU portal and Regulation P.14/MENLHK/SETJEN/KUM.1/7/2020. Health advice follows the Ministry of Health, the Ministry of Environment and WHO. In short: Indonesia measures air quality with ISPU: 0 to 50 Good, 51 to 100 Moderate, 101 to 200 Unhealthy, 201 to 300 Very Unhealthy, and 301 or above Hazardous. Above 100, cut down on outdoor...