Quality Index
Weather

Air Quality Index Is a report of air quality data
in a format that is easy to understand by the general public.
To publicize to the public about air pollution situations
In each area that is at what level Does it affect health?
Which the air quality index is a universal format
that is widely used in many countries such as
United States, Australia, Singapore, Malaysia and
Thailand etc.

Air quality index used in Thailand Calculated by comparing
the air quality standards in the general atmosphere
of 6 types of air pollutants, namely Ozone (O3) averaged 8 hours,
Nitrogen dioxide (NO2) an average of 1 hours average
Carbon monoxide (CO) 8 hours,
Sulfur dioxide (SO2) an average of 1 hour,
Dust size not exceeding 10 microns (PM10) average 24 hours,
Dust size not exceeding 2.5 microns (PM2.5) 24 hours average,
The previous calculated air quality index of any type
of air pollutant has the highest value.
Will be used as the air quality index of that day

Thailand's air quality index is divided into 5 levels.
is from 0 to 201 or more, each level uses color as
the symbol for the level of health impact.
hygiene (Table 1) by Air Quality Index 100
will have the same value as the air quality standards.
in general, if the air quality index is higher than 100,
shows that the concentration of air pollution is worth more than
standard and air quality on the day That will start in effect.
affecting people's health

Air quality index
criteria for Thailand

Very good quality
AQI 0-25
Very good air quality Suitable for outdoor activities and tourism
Good quality
AQI 26-50
Good air quality Can do outdoor activities and travel as usual
Medium
AQI 51-100
General people : can do outdoor activities as usual
People who need special health care : If there are basic symptoms such as coughing,difficulty breathing,eye irritation,should reduce the duration of outdoor activities.
Began to affect health
AQI 101-200
General people : should monitor health If there are basic symptoms such as coughing, difficulty breathing, eye irritation, should reduce the duration of outdoor activities. Or use self-protection equipment if necessary.
People who need special health care : should reduce the duration of outdoor activities Or use self-protection equipment if necessary If there are health symptoms such as coughing, dyspnea, eye inflammation, chest tightness, headache, irregular heart beat, nausea, fatigue, consult a doctor.
Affecting health
AQI AQI > 201
Everyone should avoid all kinds of outdoor activities. Avoid areas with high air pollution Or use self-protection equipment if necessary If there is a health condition, consult a doctor.

District

Station location

Latest data

PM10 (µg/m3)
(24 ชม.)

PM2.5 (µg/m3)
(24 ชม.)

AQI
compare

The standard

Dindaung districtAlong Vibhavadi Rangsit Road27-04-2025 23:00619.434Good quality
Dindaung district (PCD Station)National Housing Huaykwang Din Daeng, Khet Din Daeng, Bangkok27-04-2025 22:00-1414Very good quality
Dindaung district (PCD Station)National Housing Authority Dindaeng Din Daeng Rd. Khet Din Daeng, Bangkok27-04-2025 23:003716.830Good quality
Prakanong districtWithin Prakanong District Office27-04-2025 23:00-14.114Very good quality
ฑatburana districtWithin Ratburana District Office27-04-2025 23:00-17.632Good quality
Rachathewi districtWithin Ratchathewi District Office27-04-2025 23:00-5.35Very good quality
Dusit districtThe garden area opposite the Dusit District Office27-04-2025 23:00-10.611Very good quality
Pom Prap Sattru Phai DistrictIn front of the Office of the National Economic and Social Development Board (Lan Luang intersection)27-04-2025 23:00-12.913Very good quality
Samphanthawong DistrictAround the corner Chalermprakiat Arch (Odean Circle)27-04-2025 23:00-9.59Very good quality
Phaya Thai DistrictFront of the Army Flats near Vichaiyut Hospital Opposite the Ministry of Finance27-04-2025 23:00-15.627Good quality
Phaya Thai District (PCD Station)The Government Public Relations Department Phaya Thai, Khet Phaya Thai, Bangkok27-04-2025 23:0021811Very good quality
Wang Thonglang DistrictIn front of Bangchak gas station Soi Ladprao 9527-04-2025 23:00-21.441Good quality
Wang Thonglang District (PCD Station)Bodindecha Sing Singhaseni School Pubpla, Khet Wang Thonglang, Bangkok27-04-2025 23:00-14.314Very good quality
Wang Thonglang District (PCD Station)Bodindecha Sing Singhaseni School Pubpla, Khet Wang Thonglang, Bangkok27-04-2025 23:00-16.128Good quality
Pathumwan DistrictIn front of Sam Yan Mitrtown mall27-04-2025 23:00-18.434Good quality
Pathumwan District (PCD Station)Chulalongkorn Hospital Rama IV Rd. Khet Pathum Wan, Bangkok27-04-2025 23:00-16.329Good quality
Bangsak DistinctBeside the police yard in front of Bang Rak Lovely Plaza27-04-2025 23:00-17.732Good quality
Sathon DistrictThe intersection in front of the Sathorn District Office, Soi St. Louis Road27-04-2025 23:00-12.713Very good quality
Bang Kho Laem DistrictPolice area, the road intersection23-10-2023 07:00-21.441Good quality
Yannawa DistrictNear Bank of Ayudhya, Head Office27-04-2025 23:00-11.111Very good quality
Yannawa District (PCD Station)Nonsi Witthaya School Chong Nonsi, Khet Yannawa, Bangkok27-04-2025 23:00-14.515Very good quality
Wattana DistrictOpposite the noble Reveal (beside MK gold restaurants)27-04-2025 23:00-9.610Very good quality
Suan Luang DistrictIn front of Suan Luang District Office27-04-2025 23:00-12.212Very good quality
Bang Na DistrictIn front of the mall Big C Bangna Department Store27-04-2025 23:00-16.329Good quality
Bang Na District (PCD Station)Thai Meteorological Department Bang Na, Khet Bang Na, Bangkok27-04-2025 23:00-16.830Good quality
Chatuchak DistrictIn front of Kasetsart University28-04-2025 00:00-n/an/an/a
Don Mueng DistrictBeside Don Mueang District Office27-04-2025 23:00-14.915Very good quality
Sai Mai DistrictBus stop in front of Saimai District Office27-04-2025 23:00-1526Good quality
Bangkapi DistrictBeside the police fort opposite the Bang Kapi District Office27-04-2025 23:00-n/an/an/a
Bangkapi District (PCD Station)National Housing Authority Klongchan Khlong Chan, Khet Bang Kapi, Bangkok01-04-2025 00:00-2862Medium
Khan Na Yao DistrictAt the entrance to Suan Siam Road intersects with Ram Inthra Road.27-04-2025 23:00-12.212Very good quality
Lat Krabang DistrictIn front of Lat Krabang Hospital beside the police fort27-04-2025 23:00-16.930Good quality
Meenburi DistrictChalermprakiat Rama IX Park opposite the clock tower Opposite Min Buri District Office27-04-2025 23:00-15.828Good quality
Nong Chok DistrictIn front of Nong Chok District Office27-04-2025 23:00-19.837Good quality
Prawet DistrictIn front of Seacon Square Department Store27-04-2025 23:00-15.627Good quality
Thon Buri DistrictAlong the bus stop in the area27-04-2025 23:00-25.854Medium
Thon Buri District (PCD Station)Along the bus stop in the area27-04-2025 23:00n/a13.914Very good quality
Thon Buri District (PCD Station)Thonburi Power Sub-Station Intarapitak Rd. Khet Thon Buri, Bangkok27-04-2025 23:00n/a14.214Very good quality
Khlong San DistrictIn front of the library under the bridge of King Taksin Bridge27-04-2025 23:00-13.413Very good quality
Bangkok Yai DistrictAt Tha Phra Intersection Wat Tha Phra Sub-district27-04-2025 23:00-14.715Very good quality
Bangkok Noi DistrictIn front of Bangkok Noi Railway Police Station27-04-2025 23:00-13.514Very good quality
Taling Chan DistrictPhutthamonthon Sai 1 Road, intersecting with Borommaratchachonnani Road27-04-2025 23:00-1212Very good quality
Thawi Watthana DistrictEntrance to Sanam Luang 227-04-2025 23:00-13.914Very good quality
Phasi Charoen DistrictIn front of Siam University (about Soi Phetkasem 36), the entrance to the university is about 10 meters.27-04-2025 23:00-10.110Very good quality
Nong Khaem DistrictThree intersections, next to the police fort, Maarearoen Phetkasem Road 8127-04-2025 23:00-13.213Very good quality
Bang Bon DistrictNear Bang Bon Market27-04-2025 23:00-15.727Good quality
Thung Khru DistrictIn front of King Mongkut s University of Technology Thonburi27-04-2025 23:00-13.514Very good quality
Phra Nakhon DistrictWithin the Phra Nakhon District Office27-04-2025 23:00-10.210Very good quality
Huai Khwang DistrictWithin the Huai Khwang District Office (Beside the nursery) Pracha Uthit Road27-04-2025 23:00-10.110Very good quality
Khlong Toei DistrictWithin the Khlong Toei District Office27-04-2025 23:00-14.214Very good quality
Bang Sue DistrictWithin Bang Sue District Office27-04-2025 23:00-15.126Good quality
Ladphrao DistrictInside the Lat Phrao District Office27-04-2025 23:00-11.712Very good quality
Laksi DistrictWithin the Laksi District Office27-04-2025 23:00-14.114Very good quality
Bang Khen DistrictWithin Bang Khen District Office27-04-2025 23:00-12.412Very good quality
Saphan Sung DistrictWithin the Saphan Sung district office27-04-2025 23:00-11.612Very good quality
Buengkum DistrictWithin Bueng Kum District Office27-04-2025 23:00-13.313Very good quality
Klong Samwa DistrictWithin the Khlong Sam Wa District Office27-04-2025 23:00-18.835Good quality
Chom Thong DistrictWithin Chomthong District Office27-04-2025 23:00-10.110Very good quality
Bang Phlat DistrictWithin Bang Phlat District Office27-04-2025 23:00-18.735Good quality
Bang Khae DistrictWithin Bang Khae District Office27-04-2025 23:00-11.511Very good quality
Bang Khun Thian DistrictWithin Bang Khun Thian District Office27-04-2025 23:00-15.226Good quality
Bang Khun Thian District (PCD Station)Highway NO.3902 km.13 +600 Kanchanaphisek Rd, Bang Khun Thian, Bangkok27-04-2025 22:00-14.114Very good quality
Pathumwan Districtlumpini park27-04-2025 23:00-1010Very good quality
Chatuchak DistrictWacchirabenchatat Park27-04-2025 22:00-12.112Very good quality
Chatuchak DistrictChatuchak Park27-04-2025 23:00-11.812Very good quality
Prawet DistrictSuan Luang Rama IX27-04-2025 23:00-9.39Very good quality
Lat Krabang District60th Anniversary of Queen Sirikit Park27-04-2025 23:00-17.632Good quality
Khlong Toei DistrictBenchasiri Park27-04-2025 23:00-10.611Very good quality
Buengkum DistrictNawaminpilom Park27-04-2025 23:00-15.427Good quality
Thung Khru DistrictThonburirom Park27-04-2025 23:00-9.49Very good quality
Khlong Toei DistrictBenjakitti Park27-04-2025 23:00-10.310Very good quality
Chatuchak DistrictQueen Sirikit Park27-04-2025 23:00-10.711Very good quality
Bangkok Noi District80th Anniversary Commemoration Park27-04-2025 23:00-14.514Very good quality
Buengkum DistrictSiri Thai park27-04-2025 23:00-16.830Good quality
Bangkae DistrictBang Khae Phirom Park27-04-2025 23:00-9.610Very good quality
Thawi Watthana DistrictThawee Wanarom Park27-04-2025 23:00-11.812Very good quality
Lat Krabang DistrictPhra Nakhon Park27-04-2025 23:00-10.911Very good quality
Nong Chok DistrictNong Chok Park27-04-2025 23:00-13.213Very good quality
Bang Khen DistrictRamintra Sports Park27-04-2025 23:00-11.111Very good quality
Bang Kho Laem DistrictPublic Park to commemorate the sixth anniversary of His Majesty the King27-04-2025 23:00-1111Very good quality
Rachathewi districtSantiphap Park27-04-2025 23:00-1010Very good quality
Bang Phlat DistrictRama VIII Park27-04-2025 23:00-11.211Very good quality
Around the Bangkok Christian HospitalVehicle air quality monitoring registration number 7427 7127-04-2025 23:00-n/an/an/a
Opposite Soi Phahonyothin 7Vehicle air quality monitoring registration number 7428 7224-04-2025 14:00-11.712Very good quality
Bangkok Art and Culture Center areaVehicle air quality monitoring registration number 7430 7327-04-2025 23:00-17.833Good quality
In the area of ​​Samsen Nai Post OfficeVehicle air quality monitoring registration number 7431 7427-04-2025 23:00-12.813Very good quality
Pathumwan District27-04-2025 23:00-33.685Medium
06-04-2025 01:00-15.527Good quality
27-04-2025 23:00-11.812Very good quality
28-03-2023 06:00-20.840Good quality
Pathumwan District16-06-2023 08:00-8.79Very good quality
Explanation

PM10 Unit: micrograms per cubic meter (µg/m3)

PM2.5 Unit: micrograms per cubic meter (µg/m3)

- : No measuring equipment

n/a : No measurement data

The information shown is information that has passed the preliminary examination only
If there are questions and suggestions Please contact the Air Quality and Noise Management Division
Environment Bureau Bangkok
Copyright 2018 Bangkok Air Quality