The Pollution Control Department (PCD) is advising people in Bangkok and its suburbs to wear face masks while they are outdoors as air quality deteriorates, with 28 areas found to have excessive amounts of PM2.5 dust particles today.

The department says that the poor air quality will remain for the next three days, due to heavy traffic and low atmospheric pressure over Bangkok and its surrounding areas, meaning fine dust particles are not being dispersed.

Readings from 72 PCD and BMA air quality monitoring stations this morning show the levels of PM2.5 dust particles in Bangkok and its suburbs ranging from 35-68 microns, against the standard level of 50 microns.

Areas in Bangkok with over 50-microns include:

• Tambon Hirunrujee in Thon Buri district
• Kanchanapisek Road in Bang Khun Thian district
• Tambon Bang Na in Bang Na district
• Intharapitak Road in Thon Buri district
• Din Daeng Road
• Tamon Klong Gum in Bung Gum district
• Charunsanitwong Road in Bang Plad district
• Rama II Road in Bang Khun Thian district
• Trimit Road and Odean Circle in Samphanthawong district
• Soi Lat Phrao 95 in Wang Thong Lang district
• Rama IV Road in front of Samyan Mittown in Pathumwan district
• Narathiwat Road in Bang Rak district
• Charoen Krung Road in Bang Khor Laem district
• Lat Krabang Road in Lat Krabang district
• Petkasem Road in Phasi Charoen district
• Samsen Road in Phra Nakorn district
• Klong Toei
• Thung Song Hong in Laksi
• Pahonyothin Road in Bang Khen district

Bangkok’s suburbs with excessive levels of PM2.5 particulate are:

• Tambon Klong Noeng in Klong Luang district of Pathum Thani province
• Tambon Song Khanong in Phra Pradaeng district of Samut Prakan
• Tambon Paknam of Muang district of Samut Prakan
• Tambon Omnoi of Krathumban district in Samut Sakhon
• Tambon Mahachai in Muang district of Samut Sakhon