AQI Level Health implications Advice
0–50 Good Air quality is satisfactory; little or no risk. None.
51–100 Moderate Acceptable; some pollutants may be a concern for a small number of sensitive people. Sensitive people: limit prolonged outdoor exertion.
101–150 Unhealthy for Sensitive Groups Sensitive groups may experience health effects; general public less likely. Sensitive people: reduce prolonged/heavy outdoor exertion.
151–200 Unhealthy Some people may experience health effects; sensitive groups may have more serious effects. Reduce prolonged/heavy outdoor exertion; sensitive people should avoid it.
201–300 Very Unhealthy Health alert: increased risk for everyone. Avoid prolonged/heavy outdoor exertion; sensitive people stay indoors if possible.
301+ Hazardous Health warning: emergency conditions; everyone is more likely affected. Avoid outdoor activity as much as possible.
US AQI (United States Air Quality Index) is an air quality index defined by the U.S. Environmental Protection Agency (EPA). The index ranges from 0 to 500, and higher values indicate greater potential health impacts. It is based on major air pollutants such as PM2.5, PM10, ozone (O₃), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), and carbon monoxide (CO), and is widely used by many websites worldwide, including AQICN (World Air Quality Index).

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Bangkok
broken clouds
Latest PM2.5
10.00
PM10
11.00
broken clouds
32.56°C (Feels like 37.14°C)
Humidity 56% / Wind 1.80 m/s
Nonthaburi
light rain
Latest PM2.5
51.00
PM10
56.00
light rain
32.80°C (Feels like 37.68°C)
Humidity 56% / Wind 2.57 m/s
Pak Kret
light rain
Latest PM2.5
51.00
PM10
56.00
light rain
32.78°C (Feels like 37.63°C)
Humidity 56% / Wind 2.57 m/s
Pathum Thani
light rain
Latest PM2.5
91.00
PM10
102.00
light rain
31.92°C (Feels like 37.19°C)
Humidity 61% / Wind 2.57 m/s
Rangsit
light rain
Latest PM2.5
44.00
PM10
50.00
light rain
31.85°C (Feels like 37.64°C)
Humidity 63% / Wind 2.57 m/s
Samut Prakan
scattered clouds
Latest PM2.5
8.00
PM10
9.00
scattered clouds
32.07°C (Feels like 36.64°C)
Humidity 58% / Wind 3.09 m/s
Phra Pradaeng
broken clouds
Latest PM2.5
10.00
PM10
11.00
broken clouds
32.44°C (Feels like 37.80°C)
Humidity 59% / Wind 1.30 m/s
Bang Phli
scattered clouds
Latest PM2.5
10.00
PM10
11.00
scattered clouds
31.99°C (Feels like 36.46°C)
Humidity 58% / Wind 3.09 m/s
Samut Sakhon
light rain
Latest PM2.5
8.00
PM10
9.00
light rain
31.94°C (Feels like 37.54°C)
Humidity 62% / Wind 1.47 m/s
Nakhon Pathom
light rain
Latest PM2.5
45.00
PM10
49.00
light rain
32.11°C (Feels like 38.29°C)
Humidity 63% / Wind 2.55 m/s
Chachoengsao
light rain
Latest PM2.5
11.00
PM10
12.00
light rain
32.23°C (Feels like 39.23°C)
Humidity 66% / Wind 2.04 m/s
Ayutthaya
broken clouds
Latest PM2.5
132.00
PM10
147.00
broken clouds
32.40°C (Feels like 39.40°C)
Humidity 65% / Wind 2.16 m/s
Chon Buri
overcast clouds
Latest PM2.5
7.00
PM10
8.00
overcast clouds
29.76°C (Feels like 36.76°C)
Humidity 99% / Wind 2.38 m/s
Chiang Mai
clear sky
Latest PM2.5
31.00
PM10
33.00
clear sky
29.34°C (Feels like 31.79°C)
Humidity 61% / Wind 1.20 m/s
Phuket
overcast clouds
Latest PM2.5
4.00
PM10
5.00
overcast clouds
31.07°C (Feels like 38.07°C)
Humidity 74% / Wind 3.42 m/s
Pattaya
overcast clouds
Latest PM2.5
5.00
PM10
6.00
overcast clouds
30.35°C (Feels like 35.65°C)
Humidity 69% / Wind 2.03 m/s
Rayong
overcast clouds
Latest PM2.5
6.00
PM10
7.00
overcast clouds
32.21°C (Feels like 39.21°C)
Humidity 79% / Wind 1.34 m/s
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