150
Unhealthy for Sensitive Groups
PM2.557 µg/m3PM100 µg/m3
SO26 µg/m3OZONE52 µg/m3
NO219 µg/m3CO1 µg/m3
CurrentLast 48 hoursMinMax
PM2.5150
94167
PM100
084
OZONE16
1134
NO217
922
AQI monitoring stations Primary pollutantPM2.5 AQIPM10 AQINO2 AQI OZONE AQICO AQISO2 AQIAQI
Stations PM2.5 Air quality index pm25 151 15 16 10 10 151
Development PM2.5 Air quality index pm25 150 20 17 13 7 150

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.
Xuchang Air quality index Updated on 2020-02-27 23:00:00 , Xuchang AQI (Air quality index) is 150. Xuchang PM2.5 (fine particulate matter) AQI is 150 - Xuchang PM10 (respirable particulate matter) AQI is 0 - Xuchang NO2 (nitrogen dioxide) AQI is 17 - Xuchang SO2 (sulfur dioxide) AQI is 8 - Xuchang O3 (ozone) AQI is 16

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