Simon Birkett, Clean Air in London
@cleanairlondon.bsky.social
Simon Birkett, as Founder and Director of Clean Air in London, has championed compliance with WHO air quality guidelines throughout London and elsewhere to protect public health and fight climate change since 2006. @CleanAirLondon #AirQuality #AirPollution
Looks nasty smokey in London tonight (21/11/25). Short sharp peak if people burn wood in this cold still air. #BanWoodBurning
November 21, 2025 at 10:15 AM
Looks nasty smokey in London tonight (21/11/25). Short sharp peak if people burn wood in this cold still air. #BanWoodBurning
#CodeYellow alert | #WoodBurning in London on Friday night - in still cold air - is likely to cause a short-sharp build up of deadly particles (PM2.5). Please warn vulnerable people, ask neighbours not to burn and take a zero tolerance approach to #WoodSmoke (without putting yourself in danger)
November 20, 2025 at 8:40 AM
#CodeYellow alert | #WoodBurning in London on Friday night - in still cold air - is likely to cause a short-sharp build up of deadly particles (PM2.5). Please warn vulnerable people, ask neighbours not to burn and take a zero tolerance approach to #WoodSmoke (without putting yourself in danger)
Closes 10 February 2026 | Consultation on ‘low carbon options’ for the rare cases where heat pumps won’t be used eg large hard-to-heat rural properties off the gas grid << Beware pressure from champions of #WoodBurning www.gov.uk/government/c...
November 19, 2025 at 8:56 AM
Closes 10 February 2026 | Consultation on ‘low carbon options’ for the rare cases where heat pumps won’t be used eg large hard-to-heat rural properties off the gas grid << Beware pressure from champions of #WoodBurning www.gov.uk/government/c...
#CodeYellow advisory | Low temperatures and still air on Friday and Saturday may cause a spike in #WoodSmoke in Outer London. It’s bad for health, @thecccuk.bsky.social says #WoodBurningStoves should be phased out and Defra says you could be fined £300. #BanWoodBurning www.gov.uk/smoke-contro...
November 18, 2025 at 8:49 AM
#CodeYellow advisory | Low temperatures and still air on Friday and Saturday may cause a spike in #WoodSmoke in Outer London. It’s bad for health, @thecccuk.bsky.social says #WoodBurningStoves should be phased out and Defra says you could be fined £300. #BanWoodBurning www.gov.uk/smoke-contro...
#BanDiesel | @london.gov.uk pledged he'd restore London's #AirQuality to legal and safe levels in 2016. Nitrogen dioxide (NO2) levels are neither. In a way, we're back where we thought we were 20 years ago after @who.int slashed guideline levels in 2021. We need zero air emission buses and buildings
November 5, 2025 at 7:12 PM
#BanDiesel | @london.gov.uk pledged he'd restore London's #AirQuality to legal and safe levels in 2016. Nitrogen dioxide (NO2) levels are neither. In a way, we're back where we thought we were 20 years ago after @who.int slashed guideline levels in 2021. We need zero air emission buses and buildings
Clean Air (Human Rights) Bill #EllasLaw | The first Clean Air Bill had its Second Reading 70 years ago this week (3 Nov). @sianberry.bsky.social’s modern version won’t get the same on 21 Nov unless Keir Starmer allows more Sitting Fridays << Shame on him! hansard.parliament.uk/Commons/1955...
November 5, 2025 at 10:04 AM
Clean Air (Human Rights) Bill #EllasLaw | The first Clean Air Bill had its Second Reading 70 years ago this week (3 Nov). @sianberry.bsky.social’s modern version won’t get the same on 21 Nov unless Keir Starmer allows more Sitting Fridays << Shame on him! hansard.parliament.uk/Commons/1955...
Dear @c40cities.bsky.social and @london.gov.uk (Co-Chair). Are you committed to achieving full compliance with nitrogen dioxide (NO2) annual mean limit value of 20 micrograms per cubic metre by 1 January 2030 in European cities? cc @mark--watts.bsky.social @sadiqkhanlondon.bsky.social RSVP << Brazil
October 25, 2025 at 3:24 PM
Dear @c40cities.bsky.social and @london.gov.uk (Co-Chair). Are you committed to achieving full compliance with nitrogen dioxide (NO2) annual mean limit value of 20 micrograms per cubic metre by 1 January 2030 in European cities? cc @mark--watts.bsky.social @sadiqkhanlondon.bsky.social RSVP << Brazil
Breaking | Limp Defra reply to OEP's limp annual report on #AirQuality (January 2025). Time to scrap OEP (or give it more duties) and consider sacking #EmmaReynoldsMP www.gov.uk/government/p...
October 21, 2025 at 9:51 AM
Breaking | Limp Defra reply to OEP's limp annual report on #AirQuality (January 2025). Time to scrap OEP (or give it more duties) and consider sacking #EmmaReynoldsMP www.gov.uk/government/p...
In July 2014, Defra said Manchester would 'comply' in 2025 and London 'After 2030' << What a difference a Mayor makes... uk-air.defra.gov.uk/assets/docum.... Defra had
to issue a Direction to @andyburnham.bsky.social in January 2025 to comply by 2026! assets.publishing.service.gov.uk/media/67b494...
to issue a Direction to @andyburnham.bsky.social in January 2025 to comply by 2026! assets.publishing.service.gov.uk/media/67b494...
September 30, 2025 at 2:39 PM
In July 2014, Defra said Manchester would 'comply' in 2025 and London 'After 2030' << What a difference a Mayor makes... uk-air.defra.gov.uk/assets/docum.... Defra had
to issue a Direction to @andyburnham.bsky.social in January 2025 to comply by 2026! assets.publishing.service.gov.uk/media/67b494...
to issue a Direction to @andyburnham.bsky.social in January 2025 to comply by 2026! assets.publishing.service.gov.uk/media/67b494...
Monitoring sites in London exceeding NO2 of 40ug/m3 in 2024. #BrixtonRoad (48) #EustonRoad (42) #LoampitVale (46) #WoodGreen (40.1)
www.londonair.org.uk/london/asp/p...
www.londonair.org.uk/london/asp/p...
www.airqualityengland.co.uk/statistics-r...
www.airqualityengland.co.uk/statistics-r...
www.londonair.org.uk/london/asp/p...
www.londonair.org.uk/london/asp/p...
www.airqualityengland.co.uk/statistics-r...
www.airqualityengland.co.uk/statistics-r...
September 30, 2025 at 2:11 PM
Monitoring sites in London exceeding NO2 of 40ug/m3 in 2024. #BrixtonRoad (48) #EustonRoad (42) #LoampitVale (46) #WoodGreen (40.1)
www.londonair.org.uk/london/asp/p...
www.londonair.org.uk/london/asp/p...
www.airqualityengland.co.uk/statistics-r...
www.airqualityengland.co.uk/statistics-r...
www.londonair.org.uk/london/asp/p...
www.londonair.org.uk/london/asp/p...
www.airqualityengland.co.uk/statistics-r...
www.airqualityengland.co.uk/statistics-r...
Breaking | @sadiqkhanlondon.bsky.social rubs cake in @andyburnham.bsky.social's face by 'complying' with 2005 @who.int #AirQuality guidelines and 2008 legal limits for nitrogen dioxide (NO2). But WHO slashed guidelines in 2021, EU tightened laws in 2024 and 4 London monitors still showed breaches! 🧵
September 30, 2025 at 12:41 PM
Breaking | @sadiqkhanlondon.bsky.social rubs cake in @andyburnham.bsky.social's face by 'complying' with 2005 @who.int #AirQuality guidelines and 2008 legal limits for nitrogen dioxide (NO2). But WHO slashed guidelines in 2021, EU tightened laws in 2024 and 4 London monitors still showed breaches! 🧵
Full details on our website cleanair.london/legal/cal-ca...
September 7, 2025 at 4:00 PM
Full details on our website cleanair.london/legal/cal-ca...
Exceedances predicted by #Defra:
2024/5: London, Nottingham, Reading
2026: Basildon, Coventry, Manchester, Portsmouth, Wigan
2028: South East (Vale of White Horse)
2029: Bradford, Keighley, Liverpool
2031: Bristol, Sheffield
2032: Birmingham, Stoke on Trent
2045: Newcastle-upon-Tyne
2024/5: London, Nottingham, Reading
2026: Basildon, Coventry, Manchester, Portsmouth, Wigan
2028: South East (Vale of White Horse)
2029: Bradford, Keighley, Liverpool
2031: Bristol, Sheffield
2032: Birmingham, Stoke on Trent
2045: Newcastle-upon-Tyne
September 7, 2025 at 3:29 PM
Exceedances predicted by #Defra:
2024/5: London, Nottingham, Reading
2026: Basildon, Coventry, Manchester, Portsmouth, Wigan
2028: South East (Vale of White Horse)
2029: Bradford, Keighley, Liverpool
2031: Bristol, Sheffield
2032: Birmingham, Stoke on Trent
2045: Newcastle-upon-Tyne
2024/5: London, Nottingham, Reading
2026: Basildon, Coventry, Manchester, Portsmouth, Wigan
2028: South East (Vale of White Horse)
2029: Bradford, Keighley, Liverpool
2031: Bristol, Sheffield
2032: Birmingham, Stoke on Trent
2045: Newcastle-upon-Tyne
Breaking news | @cleanairlondon.bsky.social calls for #TheOEP to be scrapped after it refuses to use enforcement functions to accelerate compliance with nitrogen dioxide (NO2) limit values in 16 English cities and towns and #EmmaReynoldsMP to comply urgently. #Defra estimates non-compliance to 2045!
September 7, 2025 at 3:26 PM
Breaking news | @cleanairlondon.bsky.social calls for #TheOEP to be scrapped after it refuses to use enforcement functions to accelerate compliance with nitrogen dioxide (NO2) limit values in 16 English cities and towns and #EmmaReynoldsMP to comply urgently. #Defra estimates non-compliance to 2045!
Disappointing that Keir Starmer and Steve Reed have postponed second reading of @sianberry.bsky.social’s ‘Clean Air (Human Rights) Bill’ #EllasLaw #CAHRBill today by 2 weeks to Friday 21 November commonsbusiness.parliament.uk/Document/969... cc @zackpolanski.bsky.social @ellarobertafdn.bsky.social
September 2, 2025 at 7:42 PM
Disappointing that Keir Starmer and Steve Reed have postponed second reading of @sianberry.bsky.social’s ‘Clean Air (Human Rights) Bill’ #EllasLaw #CAHRBill today by 2 weeks to Friday 21 November commonsbusiness.parliament.uk/Document/969... cc @zackpolanski.bsky.social @ellarobertafdn.bsky.social
Congratulations to @zackpolanski.bsky.social on his landslide win! He’s long been a #CleanAir Champion so it’s great news for the ‘Clean Air (Human Rights) Bill’ #EllasLaw. We’ve got a new cartoon to celebrate! HT @sianberry.bsky.social @daveycartoons.bsky.social @ellarobertafdn.bsky.social
September 2, 2025 at 11:17 AM
Congratulations to @zackpolanski.bsky.social on his landslide win! He’s long been a #CleanAir Champion so it’s great news for the ‘Clean Air (Human Rights) Bill’ #EllasLaw. We’ve got a new cartoon to celebrate! HT @sianberry.bsky.social @daveycartoons.bsky.social @ellarobertafdn.bsky.social
Please #KeirStarmer sack #SteveReed #Defra for failing to comply with #AirQuality laws for nitrogen dioxide (NO2), a toxic gas HT @daveycartoons.bsky.social cc @emmahardymp.bsky.social #Reshuffle
September 1, 2025 at 1:22 PM
Please #KeirStarmer sack #SteveReed #Defra for failing to comply with #AirQuality laws for nitrogen dioxide (NO2), a toxic gas HT @daveycartoons.bsky.social cc @emmahardymp.bsky.social #Reshuffle
#LAEI2022 | New treasure trove from @mayoroflondon.bsky.social about #AirPollution emission sources in London 2022 with forecasts (as we requested) for 2025 and 2030. #WoodBurning, Diesel, Commercial Cooking and Construction stand out from a look ahead data.london.gov.uk/dataset/lond...
August 17, 2025 at 10:22 AM
#LAEI2022 | New treasure trove from @mayoroflondon.bsky.social about #AirPollution emission sources in London 2022 with forecasts (as we requested) for 2025 and 2030. #WoodBurning, Diesel, Commercial Cooking and Construction stand out from a look ahead data.london.gov.uk/dataset/lond...
Wednesday's #AirPollution
forecast from @metoffice.gov.uk and @emmahardymp.bsky.social failed to mention HIGH 8-hr ozone or the likelihood of 1-hr ozone triggering a second national #PollutionAlert or the ongoing #PollutionAlert. They need to do better to warn people. Much better
forecast from @metoffice.gov.uk and @emmahardymp.bsky.social failed to mention HIGH 8-hr ozone or the likelihood of 1-hr ozone triggering a second national #PollutionAlert or the ongoing #PollutionAlert. They need to do better to warn people. Much better
August 14, 2025 at 7:15 AM
Wednesday's #AirPollution
forecast from @metoffice.gov.uk and @emmahardymp.bsky.social failed to mention HIGH 8-hr ozone or the likelihood of 1-hr ozone triggering a second national #PollutionAlert or the ongoing #PollutionAlert. They need to do better to warn people. Much better
forecast from @metoffice.gov.uk and @emmahardymp.bsky.social failed to mention HIGH 8-hr ozone or the likelihood of 1-hr ozone triggering a second national #PollutionAlert or the ongoing #PollutionAlert. They need to do better to warn people. Much better
Terrible day for particle and ozone #AirPollution on Wednesday. National #PollutionAlert remains in force until 5pm Thursday. Relief for most on Thursday << Warnings from @london.gov.uk (and rain) may have helped save London from the worst HT @sadiqkhanlondon.bsky.social @metecoban92.bsky.social
August 14, 2025 at 7:03 AM
Terrible day for particle and ozone #AirPollution on Wednesday. National #PollutionAlert remains in force until 5pm Thursday. Relief for most on Thursday << Warnings from @london.gov.uk (and rain) may have helped save London from the worst HT @sadiqkhanlondon.bsky.social @metecoban92.bsky.social
🔴 #CodeRed | National #PollutionAlert in force until 8pm Wednesday 13 August 2025. Major ozone and particle #AirPollution episode ongoing across UK. Further alerts likely by 6pm today cleanair.london/health/pollu...
August 13, 2025 at 8:20 AM
🔴 #CodeRed | National #PollutionAlert in force until 8pm Wednesday 13 August 2025. Major ozone and particle #AirPollution episode ongoing across UK. Further alerts likely by 6pm today cleanair.london/health/pollu...
Official: #CodeRed🔴 | @mayoroflondon.bsky.social has issued HIGH ozone #AirPollution warning for London on Tuesday 12 August 2025 following Imperial College London advice. Take care😮💨. No idling🚘. No burn🔥 << Thank you @sadiqkhanlondon.bsky.social for warning people www.london.gov.uk/mayor-london...
August 12, 2025 at 7:39 AM
Official: #CodeRed🔴 | @mayoroflondon.bsky.social has issued HIGH ozone #AirPollution warning for London on Tuesday 12 August 2025 following Imperial College London advice. Take care😮💨. No idling🚘. No burn🔥 << Thank you @sadiqkhanlondon.bsky.social for warning people www.london.gov.uk/mayor-london...
🟣 #CodePurple | National #PollutionAlert for ozone likely (90%) to be triggered in London and southern UK by 6pm Tuesday ie 1-hr over 180 ug/m3. Possible 🔴 #CodeRed HIGH health index alert ie 8-hr over 161 ug/m3 cleanair.london/health/pollu.... Get our #CleanAirCities app (pinned at top) for more
August 12, 2025 at 7:20 AM
🟣 #CodePurple | National #PollutionAlert for ozone likely (90%) to be triggered in London and southern UK by 6pm Tuesday ie 1-hr over 180 ug/m3. Possible 🔴 #CodeRed HIGH health index alert ie 8-hr over 161 ug/m3 cleanair.london/health/pollu.... Get our #CleanAirCities app (pinned at top) for more
🚨Official: Code Red🚨 | 'London Air' is forecasting HIGH ozone #AirPollution by Tuesday evening in London << It could be worse on Wednesday. Don't burn🔥. Reduce driving🚘. Check health advice⛑️. @sadiqkhanlondon.bsky.social @london.gov.uk should initiate HIGH protocols londonair.org.uk/Londonair/Fo...
August 11, 2025 at 2:26 PM
🚨Official: Code Red🚨 | 'London Air' is forecasting HIGH ozone #AirPollution by Tuesday evening in London << It could be worse on Wednesday. Don't burn🔥. Reduce driving🚘. Check health advice⛑️. @sadiqkhanlondon.bsky.social @london.gov.uk should initiate HIGH protocols londonair.org.uk/Londonair/Fo...
🚨Code Red🚨 | We're upgrading our health alert to HIGH ozone #AirPollution in southern and central England on Tuesday and Wednesday (12-13/8). National #PollutionAlert highly likely by 6pm each day. Ozone is the most-irritant gas for humans. Don't burn🔥. Check health advice ⛑️
August 11, 2025 at 7:37 AM
🚨Code Red🚨 | We're upgrading our health alert to HIGH ozone #AirPollution in southern and central England on Tuesday and Wednesday (12-13/8). National #PollutionAlert highly likely by 6pm each day. Ozone is the most-irritant gas for humans. Don't burn🔥. Check health advice ⛑️