This stations Air quality measurements country standard BE

Classification Period Concentration Index Particle           
Good now 10.42 ug/m3 2 pm10  
        
Fair now 10.14 ug/m3 3 pm2.5   
       
- now 7.84 ug/m3 - pm1           

Good 24h avg. 17 ug/m3 2 pm10  
        
Fair 24h avg. 16 ug/m3 4 pm2.5    
      
- 24h avg. 11 ug/m3 - pm1           
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      Latest measurement from: 20-09-2020 15:54    (38.9°/11%)   Sensor: Purpleair #57949
Classification Index pm10 pm2.5 The health effects should be based on 24 hours average values only.
 Good  1 < 10 μg/m3 < 5 μg/m3 Enjoy your usual outdoor activities
2 < 20 μg/m3 < 10 μg/m3
 Fair  3 < 30 μg/m3 < 15 μg/m3 Enjoy your usual outdoor activities
Adults and children with lung or heart problems, who experience symptoms, should consider reducing strenuous physical activity, particularly outdoors
4 < 40 μg/m3 < 25 μg/m3
 Poor  5 < 50 μg/m3 < 35 μg/m3 Anyone experiencing discomfort such as sore eyes, cough or sore throat should consider reducing physical activity, particularly outdoors.

Adults and children with lung problems, and adults with heart problems, should reduce strenuous physical activity, particularly outdoors, and particularly if they experience symptoms.
People with asthma may find they need to use their reliever inhaler more often.
Older people should also reduce physical exertion.
6 < 60 μg/m3 < 40 μg/m3
7 < 70 μg/m3 < 50 μg/m3
 Very poor  8 < 80 μg/m3 < 60 μg/m3 Reduce physical exertion, particularly outdoors, especially if you experience symptoms such as cough or sore throat.
Adults and children with lung problems, adults with heart problems, and older people, should avoid strenuous physical activity.
People with asthma may find they need to use their reliever inhaler more often.
9 < 100 μg/m3 < 70 μg/m3
10 > 100 μg/m3 > 70 μg/m3
Visit these websites Regional Air Quality site & Purpleair sensors where you can find a wealth of information

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