The city has been enveloped with a haze over the past few weeks, with levels of PM2.5 reaching 185 microgranmes per cubic meter.
Authorities contacted a drone club in Bangkok to source the drones, which can each carry 10 litres of water and molasses. They began flying yesterday at a radius of 4km and finished today (February 1).
According to government scientists, molasses will help to catch dust in the air, which will then fall on the ground as a black water droplet.
Officials said: ‘Even though [the drones] may not help reduce the problem 100%, it is still better than doing nothing.’
Earlier in the week 12 drones were been deployed on a test mission to spray water and a ‘non-hazardous chemical spray’ 25 metres above a park for periods of 30-40 minutes.
According to Preecha Pradapmuk, director of the Defence Technology Institute (DTI), the results show levels of PM2.5 was reduced by 10 microgrammes per cubic metre (µg/m³) on average.
Air pollution is a growing crisis in the Thai capital, with a rising level of air pollutants leading to stores running out of stocks of face masks to protect residents from fumes.