PM2.512 µg/m3PM1023 µg/m3
SO23 µg/m3OZONE103 µg/m3
NO210 µg/m3CO1 µg/m3
CurrentLast 48 hoursMinMax
AQI monitoring stations Primary pollutantPM2.5 AQIPM10 AQINO2 AQI OZONE AQICO AQISO2 AQIAQI
Gan River Port PM2.5 Air quality index pm25 73 50 9 35 13 6 73  
Municipal Environmental Protection Bureau PM2.5 Air quality index ozone 21 14 5 32 10 3 32  
City special education schools PM2.5 Air quality index pm25 33 15 8 33 9 1 33  
Ziyang government center PM2.5 Air quality index pm25 54 14 13 32 13 3 54  
He Hill Environmental Protection Branch PM2.5 Air quality index pm25 38 11 10 29 11 4 38  

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.
Yiyang City Air quality index Updated on 2020-05-31 18:00:00 , Yiyang City AQI (Air quality index) is 43. Yiyang City PM2.5 (fine particulate matter) AQI is 43 - Yiyang City PM10 (respirable particulate matter) AQI is 20 - Yiyang City NO2 (nitrogen dioxide) AQI is 9 - Yiyang City SO2 (sulfur dioxide) AQI is 3 - Yiyang City O3 (ozone) AQI is 32

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