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GBThe GuardianLow emission zones

Ulez led to better lung size and function among London children, study finds

Researchers find capacity stunted by pollution was restored after introduction of ultra-low emission zone Children’s lungs grew bigger and stronger after the most polluting vehicles were restricted from entering London, a study has found. Examinations of London schoolchildren before and after the introduction of the city’s ultra-low emission zone (Ulez) found a restoration of lung capacity that had been stunted by ex

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Ledger record
#368
First seen
19 Aug 2026, 09:10 UTC
Last checked
19 Aug 2026, 09:10 UTC
Version history
1 version
Current fingerprint
14f45d290a83...d6789e
01

Publisher layer

Recorded article metadata

Publisher
The Guardian
Country
England / United Kingdom
Source published
18 Aug 2026, 22:30 UTC
Source updated
No update timestamp supplied
Byline
Damien Gayle Environment correspondent
Section
Low emission zones
Source-supplied excerpt
Researchers find capacity stunted by pollution was restored after introduction of ultra-low emission zone Children’s lungs grew bigger and stronger after the most polluting vehicles were restricted from entering London, a study has found. Examinations of London schoolchildren before and after the introduction of the city’s ultra-low emission zone (Ulez) found a restoration of lung capacity that had been stunted by ex
02

Change layer

Observed version timeline

  1. 1
    Initial capture

    Ulez led to better lung size and function among London children, study finds

    Researchers find capacity stunted by pollution was restored after introduction of ultra-low emission zone Children’s lungs grew bigger and stronger after the most polluting vehicles were restricted from entering London, a study has found. Examinations of London schoolchildren before and after the introduction of the city’s ultra-low emission zone (Ulez) found a restoration of lung capacity that had been stunted by ex

    Changed fieldstitlebylinedescriptionTextcontentTextsourcePublishedAtsourceUpdatedAtsectionimageUrltags
    Version SHA-256
    14f45d290a83...d6789e
    Capture SHA-256
    1abd1ae387f2...310803
03

Interpretation layer

Labels with declared origins

Not an adjudication.

Publisher categories are copied from source metadata. Machine signals report observable wording or format and do not determine truth, intent, ethics, or wrongdoing.

  • machine content-type Reported news observable-rules-v1 / 70% rule confidence
  • publisher category Air pollution rss-category
  • publisher category Children rss-category
  • publisher category Children's health rss-category
  • publisher category England rss-category
  • publisher category Environment rss-category
  • publisher category London rss-category
  • publisher category Low emission zones rss-category
  • publisher category Pollution rss-category
  • publisher category Society rss-category
  • publisher category UK news rss-category
04

Public response layer

Reception snapshots

No reviewed reception capture yet.

Comment counts and samples remain absent until a lawful, source-specific capture method is reviewed. Absence is recorded instead of estimated.

05

Evidence layer

Capture provenance

Capture ID
#5
Observed
19 Aug 2026, 09:10 UTC
HTTP result
200 / parsed
Raw payload
460,971 bytes, private gzip evidence
Collector
news-ledger/0.1
Public boundary
metadata and excerpt