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Air pollution soars as fog traps emissions in England’s urban areas

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Cite

Pearce, M. (2026, November 9). Air pollution soars as fog traps emissions in England’s urban areas. The Guardian. https://www.theguardian.com/environment/2026/nov/09/air-pollution-soars-fog-traps-emissions-england-urban-areas

Dated from the outlet's own feed. Check the original for its byline.

The Guardian · collected 2026-11-09 · by Matthew Pearce

Quick Summary

Air pollution reached "very high" levels across several urban areas in England on Monday due to still, foggy conditions trapping emissions from fireworks and bonfires over the weekend. Government monitors recorded 11 sites with particulate matter (PM2.5) at the highest band of their 10-point index; one site in west London peaked at a daily average of 129 micrograms per cubic metre, eight times the World Health Organization guideline. Experts attribute the surge to weather conditions combined with celebratory activities and call for better pollution forecasts and public health alerts to manage exposure risks.
Written by AI on 2026-11-09, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

On November 9, 2026, air pollution levels soared to "very high" in urban areas across England due to fog trapping emissions. Government monitoring revealed particulate matter (PM2.5) at 11 sites mainly in London and Greater Manchester, with the highest reading of 129 micrograms per cubic metre recorded in Hillingdon, west London—over eight times the World Health Organization’s daily guideline. Additional "high" pollution levels were reported across other regions including the Midlands, Yorkshire, and the east of England.

Jane Burston, CEO of the Clean Air Fund, attributed this surge to autumn celebrations such as bonfires and fireworks, noting that while monitoring networks could not pinpoint exact sources, these activities likely contributed significantly. Particulate matter exposure is linked to heart and lung diseases as well as cancer.

Written for “Air Pollution Soars In England” on 2026-11-09, grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
The model judged this article politically coded and scored it -0.65, but all 4 of its quote(s) are attributed speech - words the article quotes from someone, not the article's own narration, so the score is not published.
Written under an earlier scoring contract, which gave a paragraph rather than checkable quotes. Re-analysing this article replaces it.
Leaning score withheld for article 139264: attributed speech only · logged 2026-11-09

Story

Air Pollution Soars In England
Environment · 1 article(s) covering the same event.

Compared with similar articles

This article reads unscored and hedges 4% of its claims. Each row says how that neighbour differs.
Evening Standard
Hedges 1 of 13 claims Outlet record 64/100
“While both articles describe conditions caused by fog on November 9, 2026, they focus on different aspects: Article A discusses travel disruption and visibility issues, while Article B addresses air pollution due to trapped emissions.”
Daily Mail
Hedges 2 of 22 claims Outlet record 69/100
“While both articles discuss foggy conditions in Britain on November 9, 2026, they describe different aspects of the situation (travel chaos vs. air pollution).”
The Guardian
Hedges 2 of 17 claims Outlet record 66/100
“The articles discuss related phenomena but different aspects: one focuses on transport disruption due to fog, while the other covers air pollution caused by trapped emissions in urban areas.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
26
sentences that state something as happening or true
Uncertain
4%
1 of 26 hedged ("reportedly", "may", "according to")
Leaning
withheld
no quote in the article backed the model's score
Publisher signals
66/100
The Guardian's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Environment
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-11-09 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

The Guardian · 3161 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

Matthew Pearce
6 article(s) here · 1 carrying a prediction
Jane Burston, the CEO of the Clean Air Fund, said although monitoring networks could not determine where pollution came from, it was highly likely the pollution was from autumn celebrations.
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Also by Matthew Pearce
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 6 articles by Matthew Pearce →

Topics

England Greater Manchester Hillingdon London Yorkshire

Subjects

London GPE · 4× England GPE · 2× Greater Manchester GPE · 2× Blackburn GPE · 1× Hillingdon GPE · 1× Manchester GPE · 1× Piccadilly GPE · 1× Wigan GPE · 1× World Health Organization’s ORG · 1× Yorkshire GPE · 1×

Narrative

Larissa Lockwood, the director of campaigns at Global Action Plan, said the high pollution levels were “not surprising at a time of year when people are lighting log burners, having bonfires and lighting fireworks.
framing: assertive · carried by 1 article(s) · first seen 2026-11-09
Jane Burston, the CEO of the Clean Air Fund, said although monitoring networks could not determine where pollution came from, it was highly likely the pollution was from autumn celebrations.
2026-11-09 · The Guardian
Air pollution soars as fog traps emissions in England’s urban areas · assertive framing

Claims (26 extracted, 1 hedged)

Air pollution soared to “very high” levels across urban parts of England on Monday as still, foggy weather kept emissions trapped after a weekend of fireworks and bonfires. asserted
weather → soar → fireworks
Government monitoring showed 11 sites, mainly in London and Greater Manchester, reached the highest band on its 10-point index for particulate matter in the 24 hours to 10am. asserted
sites → show → am
A further 27 sites recorded “high” levels across the capital, the north-west, the Midlands, Yorkshire and the east of England. asserted
sites → record → England
The worst reading was in Hillingdon, west London, where fine particles (PM2.5) peaked at a 24-hour average of 129 micrograms per cubic metre, more than eight times the World Health Organization’s daily guideline. asserted
particles → peak → metre
In the north-west, Manchester Piccadilly, Wigan, Blackburn, Preston and Rochdale all reached the “very high” band. asserted
Piccadilly → reach → band
Particulate matter consists of tiny solid particles and liquid droplets suspended in the air. asserted
matter → consist → air
Exposure is linked to heart and lung disease and cancer. asserted
Exposure → link → heart
Jane Burston, the CEO of the Clean Air Fund, said although monitoring networks could not determine where pollution came from, it was highly likely the pollution was from autumn celebrations. uncertain
pollution → say → celebrations
“It’s a combination of the weather, which has been foggy and not windy at all, and then the fireworks and bonfires and Diwali,” she said. asserted
she → ’ → weather
“What it means is the wind doesn’t blow the pollution away and the fog keeps it trapped down in the same place. asserted
fog → mean → place
“If you’ve got asthma or a lung condition, you absolutely will not have wanted to go outside this morning or yesterday – it can bring on asthma attacks, coughing and wheezing. asserted
it → get → attacks
“But for everybody, it’s dangerous. asserted
it → ’ → everybody
People in some of the worst-affected areas are breathing particulate matter concentrations five to 10 times above normal annual levels,” she added. asserted
she → affect → levels
Burston called for better pollution forecasts, more widely accessible health alerts and stronger action to reduce emissions from wood burning and transport. asserted
Burston → call → burning
“If we had air quality at a much safer lower level all year round, then on nights like Bonfire Night, the extra pollution is less likely to push us to extreme levels,” she said. asserted
she → have → levels
Larissa Lockwood, the director of campaigns at Global Action Plan, said the high pollution levels were “not surprising at a time of year when people are lighting log burners, having bonfires and lighting fireworks. asserted
people → say → fireworks
On top of the normal levels from transport and industry, we see higher levels of air pollution and they’re then unable to disperse because they’re trapped by the fog.” asserted
they → see → fog
Domestic burning and transport are the biggest sources of particulate pollution, she said. asserted
she → say → pollution
Lockwood called for a public health campaign on air pollution and “burn alerts”, asking people in towns and cities not to use wood burners when levels are high. asserted
levels → call → burners
“We need to phase out non-essential burning in our towns and cities so that we don’t experience these unhealthy air pollution levels,” she added. asserted
she → need → levels
A spokesperson for the mayor of London said: “On the advice of forecasters at Imperial College London, we’ve issued a high air pollution alert for Tuesday 10 November. asserted
we → say → Tuesday
Monitoring data show that pollution levels rose sharply across London from Friday to Sunday and remained elevated into Monday morning.” asserted
levels → monitor → morning
A Clean Air Greater Manchester spokesperson said: “Higher particulate pollution levels occur each year around Bonfire Night, when fireworks and bonfires add particulate matter to the air. asserted
fireworks → say → air
This year, weather conditions are also an important factor, with light winds and fog creating conditions in which pollution from a range of sources can accumulate near ground level. asserted
pollution → create → level
The latest information and health advice provided by Defra is available online.” asserted
information → provide → Defra
The government has been contacted for comment. asserted
government → contact → comment
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