Forecast

Today

Forecast icon

Issued By:
Environmental Research Group
King's College London

Issued On: 16/07/2018 11:24:31

Pollution Band: Low

Details

Tuesday and Wednesday are expected to be sunny and warm, with temperatures in the mid 20s but with more cloud cover than recent days. A fresh westerly breeze is expected on Tuesday, continuing into Wednesday and easing a little.

Increased cloud cover will likely result in less photo-chemical activity and so less ozone production. Also the fresh relatively 'clean' airflow should aid dispersal, while not importing any significant pollution.

As a result air pollution is expected to be 'Low' for the following pollutants during the forecast period:

Nitrogen Dioxide
Ozone
PM10 Particulates
PM25 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: 17/07/2018 10:42:05

Start: Thursday 19 July

Finish: end of Thursday 19 July

Pollution Band: Moderate

Details

After a cloudy start,Thursday is expected to be sunny with temperatures back in the high 20s. A very light south-easterly breeze or near calm conditions are being forecast for most of the day.

The low wind activity will likely allow a build up of local emissions, providing the precursors necessary for ozone production in strong sunshine.

As a result 'Moderate' ozone is forecast for Thursday.

Air pollution is expected to be low for the following pollutants during the forecast period:

Nitrogen Dioxide
PM10 Particulates
PM25 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.

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