Introducing Ulez was my hardest decision as mayor of London – but now we know its astonishing impact | Sadiq Khan
Critics said I was attacking motorists. It’s more important for me that the city’s children are no longer breathing dangerous levels of pollution Ulez led to better lung size and function among London children, study finds When I introduced London’s clean air zone – the ultra-low emission zone (Ulez) – more than seven years ago, no city had ever attempted anything quite like it. At the time, the scheme in central Lon
Open original article- Ledger record
- #349
- First seen
- 19 Aug 2026, 09:10 UTC
- Last checked
- 19 Aug 2026, 15:31 UTC
- Version history
- 1 version
- Current fingerprint
4398dc36bf2a...5cd7f3
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
- Sadiq Khan
- Section
- Air pollution
Critics said I was attacking motorists. It’s more important for me that the city’s children are no longer breathing dangerous levels of pollution Ulez led to better lung size and function among London children, study finds When I introduced London’s clean air zone – the ultra-low emission zone (Ulez) – more than seven years ago, no city had ever attempted anything quite like it. At the time, the scheme in central Lon
Change layer
Observed version timeline
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1
Introducing Ulez was my hardest decision as mayor of London – but now we know its astonishing impact | Sadiq Khan
Critics said I was attacking motorists. It’s more important for me that the city’s children are no longer breathing dangerous levels of pollution Ulez led to better lung size and function among London children, study finds When I introduced London’s clean air zone – the ultra-low emission zone (Ulez) – more than seven years ago, no city had ever attempted anything quite like it. At the time, the scheme in central Lon
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4398dc36bf2a...5cd7f3- Capture SHA-256
1abd1ae387f2...310803
Interpretation layer
Labels with declared origins
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 Environment rss-category
- publisher category Health rss-category
- publisher category London rss-category
- publisher category Pollution rss-category
- publisher category Society rss-category
- publisher category Transport rss-category
- publisher category UK news rss-category
Public response layer
Reception snapshots
Comment counts and samples remain absent until a lawful, source-specific capture method is reviewed. Absence is recorded instead of estimated.
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