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- Air Pollution Forecast
The latest air quality forecast for London. Pollution and particulate levels updated every hour.
London Air Pollution Summary: Low
Low air pollution forecast valid from Saturday 20 August to end of Saturday 20 August GMT.
A dry and sunny start, cloudier into the afternoon perhaps with an isolated light shower possible in places, but still with sunny spells, feeling warm.
The air arriving in London will have westerly maritime origin so will be relatively clean and will not therefore carry the precursor pollutants required to fuel the formation of ozone.
Air pollution is expected to remain ‘Low’ for the following pollutants throughout the forecast period:
Nitrogen Dioxide
Ozone
PM10 Particulate
PM2.5 Particulate
Sulphur Dioxide
Air Quality Pollution Levels
Nitrogen Dioxide Low
Ozone Low
PM10 Particulate Low
PM2.5 Particulate Low
Sulphur Dioxide Low
London Air Quality Tomorrow: Low
Low air pollution forecast valid from Sunday 21 August to end of Sunday 21 August GMT.
Sunday, mostly dry with sunny spells, and generally light winds.
The air arriving in London will have westerly maritime origin so will be relatively clean and will not therefore carry the precursor pollutants required to fuel the formation of ozone.
Air pollution is expected to remain ‘Low’ for the following pollutants throughout the forecast period:
Nitrogen Dioxide
Ozone
PM10 Particulate
PM2.5 Particulate
Sulphur Dioxide
Air Quality Pollution Levels: Tomorrow
Nitrogen Dioxide Low
Ozone Low
PM10 Particulate Low
PM2.5 Particulate Low
Sulphur Dioxide Low
Air Pollution Banding Value
Low 1-3
At Risk Individuals: Enjoy your usual outdoor activities.
General Population: Enjoy your usual outdoor activities.
Moderate 4-6
At Risk Individuals: Adults and children with lung problems, and adults with heart problems, who experience symptoms, should consider reducing strenuous physical activity, particularly outdoors.
General Population: Enjoy your usual outdoor activities.
High 7-9
At Risk Individuals: 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.
General Population: Anyone experiencing discomfort such as sore eyes, cough or sore throat should consider reducing activity, particularly outdoors.
Very High 10
At Risk Individuals: 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.
General Population: Reduce physical exertion, particularly outdoors, especially if you experience symptoms such as cough or sore throat.
Air Quality Disclaimer
This London air quality forecast is intended to provide information on expected pollution levels in areas of significant public exposure.
It may not apply in very specific locations close to unusually strong or short-lived local sources of pollution.
Data supplied by TfL in conjunction with London Air.
UK Traffic Delays is a reliable source of updated travel information, obtained under licence from official data providers. London travel information is used under license from TfL: Powered by TfL Open Data. Our website contains public sector travel information licensed under the: Open Government Licence v3.0.