‘‘Moderate’ air pollution forecast from King’s College London

Valid from         12:00 Friday 10^th February 2012

Valid until:         12:00 Monday 13^th February 2012

Current air pollution

‘Moderate’ nitrogen dioxide is currently being recorded at Kensington and Chelsea – Earl’s Court Road.

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

Current air pollution

‘Moderate’ nitrogen dioxide is currently being recorded adjacent the King’s Road in Chelsea and in Putney High Street.

Forecast

Elevated nitrogen dioxide and particulate pollution has been occurring for much of the week and will continue into the first part of the weekend as still, calm weather conditions persist with addition of pollutants arriving from north-eastern Europe.

There is a 60% chance of ‘moderate’ PM_10­ occurring at roadside sites and 40% chance of ‘moderate’ PM_2.5. There is a reduced (10%) chance of ‘moderate’ nitrogen dioxide due to lower local emissions during the weekend.

Pollution levels are likely to be lower into the second half of the weekend as the weather is forecast to start to change to slightly more unsettled conditions and influx of pollution from the continent is not expected.

Air pollution is expected to remain ‘low’ in your area for the following pollutants throughout the forecast period:

Ozone

Sulphur dioxide

This forecast is intended to provide information on predicted pollution levels across your borough where significant public exposure may reasonably be expected. It may not apply in very specific areas close to unusually strong or short-lived local sources of pollution

New Daily Air Quality Index

The UK air quality index changed on 1^st January. For details about the new index please see http://www.londonair.org.uk/LondonAir/guide/AirQualityBands.aspx

Nowcast

Current pollution levels across London can be viewed in greater detail and in comparison with Defra’s new Daily Air Quality Index at:

http://www.londonair.org.uk/london/asp/nowcast.asp

Louise Mittal

Duty Forecaster

‘‘Moderate’ air pollution forecast from King’s College London

Valid from         12:30 Thursday 9^th February 2012

Valid until:         12:00 Friday 10^th February 2012

Current air pollution

‘Moderate’ nitrogen dioxide is currently being recorded adjacent the King’s Road in Chelsea and in Putney High Street.

Current air pollution

Air pollution is currently ‘low’ in your area.

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

Current air pollution

‘Moderate’ nitrogen dioxide is currently being recorded adjacent the King’s Road in Chelsea and in Putney High Street.

Forecast

Relatively calm weather is hindering dispersion of traffic pollution from London. Additionally airborne particles from continental sources are expected to increase over the next 24 to 36 hours. The combination of these pollutant sources will lead to a 50% chance of ‘moderate’ PM₁₀, PM2.5 and NO2 close to busy roads, especially into tomorrow. There is a slight (25%) chance of moderate PM2.5 and PM₁₀ at background locations.

Air pollution is expected to remain ‘low’ in your area for the following pollutants throughout the forecast period:

Ozone

Sulphur dioxide

This forecast is intended to provide information on predicted pollution levels across your borough where significant public exposure may reasonably be expected. It may not apply in very specific areas close to unusually strong or short-lived local sources of pollution

New Daily Air Quality Index

The UK air quality index changed on 1^st January. For details about the new index please see http://www.londonair.org.uk/LondonAir/guide/AirQualityBands.aspx

Nowcast

Current pollution levels across London can be viewed in greater detail and in comparison with Defra’s new Daily Air Quality Index at:

http://www.londonair.org.uk/london/asp/nowcast.asp

Gary Fuller

Duty Forecaster

‘Moderate’ air pollution forecast from King’s College London

Valid from         11:30 Tuesday 7^th February 2012

Valid until:         12:00 Wednesday 8^th February 2012

Current air pollution

Air pollution is currently ‘low’ in your area.

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

Forecast

Early cloud will clear with cold clear conditions expected in all areas throughout the afternoon. It will remain clear and feeling very cold for much of the night with a widespread frost forming. Patchy cloud may bring some light snow flurries later on continuing into Wednesday morning.

The calm weather conditions with poor pollutant dispersal will bring an 80% chance of ‘moderate’ PM₁₀ and PM_2.5 pollution occurring at roadside locations during the forecast period.

There is a 60% chance of ‘moderate’ nitrogen dioxide occurring at busy roadside locations during the rush hour tonight and again tomorrow morning.

Air pollution is expected to remain ‘low’ in your area for the following pollutants throughout the forecast period:

Ozone

Sulphur dioxide

This forecast is intended to provide information on predicted pollution levels across your borough where significant public exposure may reasonably be expected. It may not apply in very specific areas close to unusually strong or short-lived local sources of pollution.

Outlook

An influx of polluted air from the continent is expected from Wednesday onwards.

New Daily Air Quality Index

The UK air quality index changed on 1^st January. For details about the new index please see http://www.londonair.org.uk/LondonAir/guide/AirQualityBands.aspx

Nowcast

Current pollution levels across London can be viewed in greater detail and in comparison with Defra’s new Daily Air Quality Index at:

http://www.londonair.org.uk/london/asp/nowcast.asp

Daniel Marsh

Duty Forecaster

‘Moderate’ air pollution forecast from King’s College London

Valid from         12:00 Monday 6^th February 2012

Valid until:         12:00 Tuesday 7^th February 2012

Current air pollution

Air pollution is currently ‘low’ in your area.

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

Forecast

Calm conditions with poor pollutant dispersal bring a 60% chance of ‘moderate’ PM₁₀ and PM_2.5 pollution being recorded in roadside locations during the forecast period.

There is a 20% chance of ‘moderate’ nitrogen dioxide at busy roadside locations during the rush hour tonight and tomorrow morning

Air pollution is expected to remain ‘low’ in your area for the following pollutants throughout the forecast period:

Ozone

Sulphur dioxide

This forecast is intended to provide information on predicted pollution levels across your borough where significant public exposure may reasonably be expected. It may not apply in very specific areas close to unusually strong or short-lived local sources of pollution.

Outlook

An influx of pollution from the continent is again expected from Wednesday onwards.

New Daily Air Quality Index

The UK air quality index changed on 1^st January. For details about the new index please see http://www.londonair.org.uk/LondonAir/guide/AirQualityBands.aspx

Nowcast

Current pollution levels across London can be viewed in greater detail and in comparison with Defra’s new Daily Air Quality Index at:

http://www.londonair.org.uk/london/asp/nowcast.asp

Timothy Baker

Duty Forecaster

Possible ‘moderate’ air pollution forecast from King’s College London

Valid from         12:00 Friday 3^rd February 2012

Valid until:         12:00 Monday 6^th February 2012

Current air pollution

Air pollution is currently ‘low’ in your area.

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

Forecast

Continuing cold, calm conditions this afternoon and over the weekend will cause elevated pollution levels. This, coupled with a shift to more easterly winds, may (25% chance) lead to ‘moderate’ PM₁₀ pollution being recorded in roadside locations during the forecast period.

There is a 20% chance of ‘moderate’ nitrogen dioxide at busy roadside locations during the rush hour tonight.

Air pollution is expected to remain ‘low’ in your area for the following pollutants throughout the forecast period:

Ozone

PM_2.5 Particulate

Sulphur dioxide

This forecast is intended to provide information on predicted pollution levels across your borough where significant public exposure may reasonably be expected. It may not apply in very specific areas close to unusually strong or short-lived local sources of pollution.

New Daily Air Quality Index

The UK air quality index changed on 1^st January. For details about the new index please see http://www.londonair.org.uk/LondonAir/guide/AirQualityBands.aspx

Nowcast

Current pollution levels across London can be viewed in greater detail and in comparison with Defra’s new Daily Air Quality Index at:

http://www.londonair.org.uk/london/asp/nowcast.asp

Ben Barratt

Duty Forecaster