Forecast
Air Pollution Forecast from Imperial College London Environmental Research Group
Today
Issued:
17/03/2025 11:49:13
Pollution Band:
Low
Details
Cloudy start to the day with cloud breaking to give sunny spells. Feeling chilly in a strengthening breeze.
A continuing northerly air feed via the North Sea is expected to loop around and pass at a low altitude over the near continent before arriving in the London area.
It's possible this loop in the air feed will pick up some pollutants from urban, industrial and agricultural emission sources on the near continent. We anticipate this import to build over the first half of this week. However, it's not expected that pollution picked up will be significant, mainly due to the short time it's expected to spend over any pollution sources.
Overall, air pollution is expected to remain 'Low' for the following pollutants:
Nitrogen Dioxide
Ozone
Sulphur Dioxide
PM10 Particulates
PM2.5 Particulates
Outlook
Issued:
17/03/2025 11:49:13
Start:
Monday 17 March
Finish:
end of Tuesday 18 March
Pollution Band:
Low
Details
Cloudy start to the day with cloud breaking to give sunny spells. Feeling chilly in a strengthening breeze.
A continuing northerly air feed via the North Sea is expected to loop around and pass at a low altitude over the near continent before arriving in the London area.
It's possible this loop in the air feed will pick up some pollutants from urban, industrial and agricultural emission sources on the near continent. We anticipate this import to build over the first half of this week. However, it's not expected that pollution picked up will be significant, mainly due to the short time it's expected to spend over any pollution sources.
Overall, air pollution is expected to remain 'Low' for the following pollutants:
Nitrogen Dioxide
Ozone
Sulphur Dioxide
PM10 Particulates
PM2.5 Particulates
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. Horn Lane will have increased levels of particulate matter that will not be representative of rest of 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.
Health Advice
| 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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