Bangkok registered an air quality index of 162 on Thursday, compared with 109 for Chiang Mai.
The scale has six categories: 0-50 (good air quality), 51-100 (intermediate), 101-150 (unhealthy for some groups), 151-200 (unhealthy), 201-300 (very unhealthy), and over 301 (hazardous).
The 10 cities with the worst air pollution in the world as of 9am according to IQAir were:
1. Dhaka, Bangladesh – 266
2. Delhi, India – 222
3. Karachi, Pakistan – 183
4. Lahore, Pakistan – 183
5. Kolkata, India – 182
6. Mumbai, India – 173
7. Katmandu, Nepal – 165
8. Yangon, Myanmar – 162
9. Bangkok, Thailand – 162
10. Kabul, Afghanistan – 161
The Bangkok Metropolitan Administration (BMA) announced on Thursday that PM2.5 readings exceeded 75 micrograms per cubic meter (µg/m³) in 17 districts of Bangkok, double Thailand’s safety standard of 37.5µg/m³ for a 24-hour…
