London Air Quality Forecast – Current Air Pollution




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 Tuesday 18 February to end of Tuesday 18 February GMT.

Sunny and cold on Tuesday.

A continuing cold easterly air flow is forecast. This air will have travelled over the near continent on route and is likely to have picked up particulate pollution from urban and industrial sources. The air path is mostly along a higher altitude where pollution levels would be expected to be lower. Although particulate levels may increase, it’s expected levels will overall remain ‘Low’. In addition some dispersion of local emissions in an easterly breeze.

Air pollution is expected to remain ‘Low’ for the following pollutants:

Nitrogen Dioxide
Ozone
Sulphur Dioxide
PM10 Particulates
PM2.5 Particulates

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 Wednesday 19 February to end of Wednesday 19 February GMT.

Cloudy with sunny intervals.

Initially cold in an easterly air flow but temperatures increasing from late morning with air arriving from a more southerly direction. Any particulate pollution as a result of the earlier air feed is expected to decrease as we move through the day. A breeze should ensure dispersion of local emissions.

Air pollution is expected to remain ‘Low’ for the following pollutants:

Nitrogen Dioxide
Ozone
Sulphur Dioxide
PM10 Particulates
PM2.5 Particulates




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.

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