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Air Pollution Index:

Air pollution in Aberdeen for 23 September 2017
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  • 1 (low)
  • 2 (low)
  • 3 (low)
  • 4 (moderate)
  • 5 (moderate)
  • 6 (moderate)
  • 7 (high)
  • 8 (high)
  • 9 (high)
  • 10 (very high)
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What is the air pollution index?

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Real-Time Air Quality Monitoring in Aberdeen

The Air Pollution Index

Air Pollution Banding Value Accompanying health messages for at-risk groups and the general population
At-risk individuals* General Population
Low 1-3 Enjoy your usual outdoor activities. Enjoy your usual outdoor activities.
Moderate 4-6 Adults and children with lung problems, and adults with heart problems, who experience symptoms, should consider reducing strenuous physical activity, particularly outdoors. Enjoy your usual outdoor activities.
High 7-9 Adults and children with lung problems, and adults with heart problems, should reduce strenuous physical exertion, 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. Anyone experiencing discomfort such as sore eyes, cough or sore throat should consider reducing activity, particularly outdoors.
Very High 10 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. Reduce physical exertion, particularly outdoors, especially if you experience symptoms such as cough or sore throat.

*Adults and children with heart or lung problems are at greater risk of symptoms. Follow your doctor's usual advice about exercising and managing your condition. It is possible that very sensitive individuals may experience health effects even on Low air pollution days.


Boundaries Between Index Points for Each Pollutant

Band Index Ozone Nitrogen Dioxide Sulphur Dioxide PM2.5 Particles PM10 Particles
Running 8 hourly mean hourly mean 15 minute mean 24 hour running mean 24 hour running mean
µgm-3 µgm-3 µgm-3 µgm-3 µgm-3
(Grav. Equiv.)
Low
  1 0-33 0-66 0-88 0-11 0-16
2 34-65 67-133 89-176 12-23 17-33
3 66-99 134-199 177-265 24-34 34-49
Moderate
  4 100-120 200-267 266-354 35-41 50-58
5 121-140 268-334 355-442 42-46 59-66
6 141-159 335-399 443-531 47-52 67-74
High
  7 160-187 400-467 532-708 53-58 75-83
8 188-213 468-534 709-886 59-64 84-91
9 214-239 535-599 887-1063 65-69 92-99
Very High
  10 240
or more
600
or more
1064
or more
70
or more
100
or more