Mr. Pornphrom Vikitsreth, Advisor to the Governor of Bangkok and the first Chief Sustainability Officer of the BMA has revealed that during the high PM2.5 dust situation last week, Bangkok announced that affiliated agencies should follow the Work from Home (WFH) ) policy between 15th-16th Feb. 2024 and asked for cooperation from 151 public and private network partners (60,279 people) in participating in WFH during the same period.
At the same time, Bangkok has recorded the average car traffic per hour before and after the WFH announcement for comparison. It was found that the average volume of cars per hour from the roadside CCTV in the inner areas and borders of Bangkok, 100 points on Friday, February 9th, 2024, had an average volume of cars at 741 cars per hour.
After announcing the WFH policy on Friday, February 16th, 2024, WFH was announced with an average car volume of 688 vehicles per hour. It is evident that there was an 8% decline in the average vehicle volume per hour following the WFH announcement.

The Bangkok Governor’s advisor also added that avoiding employment during periods of high PM2.5 dust might both lessen the negative effects of dust exposure on people’s health and minimize traffic on the roads, which is one of the main sources of air pollution.
It is consistent with research from Kasetsart University, which discovered that as much as 57% of the PM2.5 dust in the Bangkok region is caused by diesel vehicles.