skip to the main content area of this page
Photo of landscape and people

Forecast

Air Pollution Forecast from King's College London Environmental Research Group

Read more...

Reports

Annual air quality assessment and related reports.

Read more...

LondonAir icon
View the Air Quality Apps on London Air

Forecast

Today

Forecast icon

Issued: 22/05/2018 10:47:08

Pollution Band: Low


Details

A change on Thursday from the recent sunny weather with a cloudy day forecast. Intermittent showers are also possible.

A light north-easterly breeze is expected to import air that had previously been over The Netherlands and northern Germany. It's likely that we will see some import of particulates although currently it's not expected to be sufficient to result in 'Moderate' particulate levels for the day.

Air pollution is expected to remain 'low' for the following pollutants:

Nitrogen Dioxide
Ozone
PM10 Particulate
PM2.5 Particulate
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: 24/05/2018 11:58:58

Start: Friday 25 May

Finish: end of Friday 25 May

Pollution Band: Moderate


Details

Friday is forecast to be similar to Thursday, warm and sunny with some cloud cover.

Starting on Thursday and continuing into Friday, wind direction will be easterly bringing with it the chance of imported emissions.

Wind speed will also be low on Friday with a re-circulation system establishing in the afternoon.

These two factors mean there is a chance of widespread 'Moderate' particulate pollution on Friday.

Air pollution is expected to remain 'low' for the following pollutants:

Nitrogen Dioxide
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.


The Ealing 8 monitoring site on Horn Lane, Acton forms part of an investigation of the local PM10 sources at this location. The site is affected by specific local sources of PM10 particulate and it is not representative of other areas within the Borough.


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.

Back to Air Quality Home