Bangkok Dust Levels Begin to Rise Warning Issued for 14–16 Nov Due to Poor Air Dispersion

Bangkok dust levels are beginning to rise. The "Bangkok Air Quality Information Center" warns to watch carefully during 14–16 Nov as poor air dispersion continues, risking increased dust accumulation, especially from night until morning.

14 Nov 2026 GMT+7Bangkok Air Quality Information CenterThe center posted that Bangkok dust levels are rising! They advise close monitoring during 14–16 Nov due to poor air dispersion and risk of dust accumulation, particularly at night through morning.

Why are dust levels rising now?

The main cause is poor atmospheric conditions for dust dispersion, specifically:

• Very weak near-surface winds slow the removal of dust from the area.
• The ventilation rate (VR) is low, allowing dust from various sources to accumulate more easily.
• Especially from night to morning, when air dispersion is less effective than during the day, leading to higher dust levels in the early morning.

What is the dust forecast from 14 to 22 Nov?

14–16 Nov | Period requiring special vigilance

• Continued poor air dispersion increases the risk of dust buildup, particularly from night to morning.

17–19 Nov | Possible partial improvement

• Winds and daytime ventilation are expected to improve, with possible rain reducing dust in some areas; however, nighttime vigilance remains necessary.

20–22 Nov | Dust may accumulate again

• Air dispersion is likely to worsen again, especially at night and early morning. If smoke sources persist, dust levels could rise again.

From 14–16 Nov, the public is urged to avoid all types of open burning.

On days with poor air dispersion, even small amounts of burning can cause smoke to accumulate and increase dust levels, particularly when burning occurs in the evening, night, or early morning.

Health precautions during this period

• Check dust levels before leaving home, especially in the morning.
• If dust levels are high, reduce outdoor activities and wear PM2.5 protective masks when necessary.
• Children, the elderly, and those with chronic illnesses should take extra care.
• Help by refraining from burning garbage, leaves, and other waste, as smoke from burning increases the city's dust burden.
• Check dust levels atwww.airbkk.com

Information from the Facebook page of the Bangkok Air Quality Information Center