Unhealthy for Sensitive Groups
PM2.537 µg/m3PM1051 µg/m3
SO29 µg/m3OZONE60 µg/m3
NO213 µg/m3CO0.9 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 95 49 15 23 13 3 95  
Municipal Environmental Protection Bureau PM2.5 Air quality index pm25 114 38 9 18 8 11 114
City special education schools PM2.5 Air quality index pm25 104 48 15 20 10 25 104
Ziyang government center PM2.5 Air quality index pm25 111 46 7 17 13 3 111
He Hill Environmental Protection Branch PM2.5 Air quality index pm25 88 51 9 17 10 18 88  

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 2019-10-24 02:00:00 , Yiyang City AQI (Air quality index) is 102. Yiyang City PM2.5 (fine particulate matter) AQI is 102 - Yiyang City PM10 (respirable particulate matter) AQI is 46 - Yiyang City NO2 (nitrogen dioxide) AQI is 11 - Yiyang City SO2 (sulfur dioxide) AQI is 12 - Yiyang City O3 (ozone) AQI is 19

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