10µm
2.5
µm
 1µm
Relative Sizes
Particulate Matter
Air Quality
Latest measurement from: 20 May 2024 01:59 BST (T 14.9°C / RH 87%)  Sensor: AirLink #001D0A1000C3

 Index style
Period Particle Conc. Index UK Classification           
now µm10 37.28 µg/m3 3 Good   
       
now µm2.5 32.3 µg/m3 3 Good   
       
now µm1 22.37 µg/m3 3 Good   
       

Last hour avg µm10 38.22 µg/m3 3 Good   
       
Last hour avg µm2.5 32.52 µg/m3 3 Good   
       

Last 3h avg µm10 46.55 µg/m3 3 Good   
       
Last 3h avg µm2.5 36.71 µg/m3 4 Fair    
      

Last 12h avg µm10 42.97 µg/m3 3 Good   
       
Last 12h avg µm2.5 34.72 µg/m3 3 Good   
       

Last 24h avg µm10 26.49 µg/m3 2 Good  
        
Last 24h avg µm2.5 23.16 µg/m3 3 Good 12> 3 <45678910

UK Classification Index µm10 µm2.5 The health effects should be based on 24 hours average values only.
 Good  1 < 16 µg/m3 < 11 µg/m3 Enjoy your usual outdoor activities
2 < 33 µg/m3 < 23 µg/m3
3 < 50 µg/m3 < 35 µg/m3
 Fair  4 < 58 µg/m3 < 41 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
5 < 66 µg/m3 < 47 µg/m3
6 < 75 µg/m3 < 53 µg/m3
 Poor  7 < 83 µg/m3 < 58 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.
8 < 91 µg/m3 < 64 µg/m3
9 < 100 µg/m3 < 70 µg/m3
 Very poor  10 > 100 µg/m3 > 70 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.
Visit UK Air Quality site where you can find a wealth of information

Highly Modified Wim DKuil (Leuven) Script by beteljuice for use with Davis AirLink sensors.