Forecast

Today

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Issued By:
Environmental Research Group
King's College London

Issued On: 17/01/2020 13:11:01

Pollution Band: Low

Details

Colder, more settled weather conditions are forecast on Saturday and Sunday as a high pressure system establishes itself over the United Kingdom.

Levels of particulate and nitrogen dioxide pollution are expected to be higher than of late given the change in conditions. Particulate concentrations may also rise during the evenings due to domestic wood burning. However, pollution levels are expected to remain in the 'Low' banding as there should be sufficient breeze to disperse emissions. Additionally, the incoming air will be relatively 'clean' as its path will be from the north Atlantic.

Air pollution is expected to remain 'Low' throughout the forecast period for the following pollutants:

Nitrogen Dioxide
Ozone
PM10 Particulates
PM2.5 Particulates
Sulphur Dioxide












This 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.

Outlook

Forecast icon

Issued By:
Environmental Research Group
King's College London

Issued On: 17/01/2020 13:19:10

Pollution Band: Moderate

Details

Cold, still weather is forecast throughout Monday due to a high pressure system over the United Kingdom.

Poor dispersion of locally-emitted pollutants is expected and this is likely to result in 'Moderate' levels of PM10 and PM2.5 particulate. The highest pollution concentrations are expected close to busy roads in central and inner London. 'Moderate' levels of nitrogen dioxide are also possible by congested roads during the morning and evening rush hour periods.

Air pollution is expected to remain 'Low' throughout the forecast period for the following pollutants:

Ozone
Sulphur Dioxide












This 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.

How to use the Daily Air Quality Index *

  • Step 1: Determine whether you (or your children) are likely to be at-risk from air pollution. Your doctor may also be able to give you advice.
  • Step 2: If you may be at-risk, and are planning strenuous activity outdoors, check the air pollution forecast.
  • Step 3: Use the health messages corresponding to the highest forecast level of pollution as a guide.
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.

* Daily Air Quality Index information sourced from UK-AIR (Air Information Resource) website.

* 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.

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