Forecast

Today

Forecast icon

Issued By:
Environmental Research Group
King's College London

Issued On: 18/09/2019 09:55:42

Pollution Band: Low

Details

A bright sunny day forecast for Thursday as a high pressure system remains over the UK. A very light breeze or almost calm conditions for most of the day is expected to give way to an easterly 'North Sea' breeze from later in the afternoon.

During the day nitrogen dioxide and particulate levels may build-up especially close to busy roadsides but these should clear as the breeze increases in the afternoon.

Overall, 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: 18/09/2019 10:53:04

Pollution Band: Low

Details

Another bright sunny day is forecast for Friday. The wind is expected to be stronger than of late with a predominantly easterly breeze becoming fresher through the day.

It's expected there will be some import of particulates early on as air arriving will have travelled at low altitude from the North Sea and over the near continent. As a result particulate levels are expected to be highest early in the morning, aided by poor dispersion in light wind conditions.

From late morning the air path is expected to change. Relatively clean 'North Sea' air is expected to have travelled at higher altitude and from over Germany and the near continent before arriving. Imported air along this route is expected to have lower particulate concentrations and this, coupled with an increase in wind activity locally - ensuring increased dispersion - should result in particulate levels decreasing.

Overall, 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.

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.

Sign up for email forecasts

Privacy Notice Summary

  • Who this is for: You must be at least 13 years old to use this service.
  • What we collect: We store your email address
  • Who we share it with: We use "Campaign Monitor" to store it, and do not share it with anyone else.
  • You can see our full privacy notice here
Follow Us
Our newsletter
Privacy Notice Summary:
  • Who this is for: You must be at least 13 years old to use this service.
  • What we collect: We store your email address
  • Who we share it with: We use "Campaign Monitor" to store it, and do not share it with anyone else.
  • More Info: You can see our full privacy notice here

AirMail newsletter

The latest news and research from King's: View the archive