45
Good
PM2.512 µg/m3PM100 µg/m3
SO25 µg/m3OZONE36 µg/m3
NO215 µg/m3CO0.8 µg/m3
CurrentLast 48 hoursMinMax
PM2.545
33175
PM100
079
OZONE11
1148
NO213
1228
AQI monitoring stations Primary pollutantPM2.5 AQIPM10 AQINO2 AQI OZONE AQICO AQISO2 AQIAQI
EPA Economic Development Zone PM2.5 Air quality index pm25 46 15 10 8 8 46  
EPA high open area PM2.5 Air quality index pm25 56 14 13 9 7 56  
Ma Poling PM2.5 Air quality index pm25 58 15 11 11 8 58  
Hunan Normal University PM2.5 Air quality index pm25 52 12 12 8 6 52  
Yuhua District Environmental Protection Bureau PM2.5 Air quality index pm25 33 13 9 7 4 33  
Wu Jialing PM2.5 Air quality index pm25 42 16 12 9 8 42  
The new train station PM2.5 Air quality index pm25 42 18 10 10 6 42  
Tianxin EPA PM2.5 Air quality index pm25 50 9 10 8 8 50  
Hunan University of Traditional Chinese Medicine PM2.5 Air quality index pm25 38 15 12 8 6 38  
Shaping PM2.5 Air quality index pm25 42 10 12 8 6 42  

According The National Ambient Air Quality Standards for Particle Pollution to caculate AQI

Air Quality Index (AQI) Values Levels of Health Concern Colors
0 to 50 Good No health implications.
51 to 100 Moderate Few hypersensitive individuals should reduce outdoor exercise.
101 to 150 Unhealthy for Sensitive Groups Slight irritations may occur, individuals with breathing or heart problems should reduce outdoor exercise.
151 to 200 Unhealthy May have harmful impacts on patients and members of sensitive groups (children, aged or weak people), and also cause the general public unpleasant feelings.
201 to 300 Very Unhealthy Healthy people will be noticeably affected. People with breathing or heart problems will experience reduced endurance in activities. These individuals and elders should remain indoors and restrict activities.
301 to 500 Hazardous Healthy people will experience reduced endurance in activities. There may be strong irritations and symptoms and may trigger other illnesses. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid out door activities.
Changsha Air quality index Updated on 2021-02-26 04:00:00 , Changsha AQI (Air quality index) is 45. Changsha PM2.5 (fine particulate matter) AQI is 45 - Changsha PM10 (respirable particulate matter) AQI is 0 - Changsha NO2 (nitrogen dioxide) AQI is 13 - Changsha SO2 (sulfur dioxide) AQI is 6 - Changsha O3 (ozone) AQI is 11

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