BANGKOK — A fleet of drones, trucks and small planes sprayed water to try to reduce air pollution around Bangkok on Thursday while the city’s governor invited critics to brainstorm better ideas to improve the air quality in the Thai capital.
Unhealthy pollution levels forced city schools to close Wednesday for the rest of week, and the Public Health Ministry advised against outdoor activities.
https://www.ctvnews.ca/sci-tech/bangkok-flies-drones-warns-of-hardships-in-bad-air-battle-1.4276491