Harrow Air Quality 202615.2% NOx Reduction + ULEZ Impact Monitor
Check Harrow air quality in real-time with live PM2.5, NO2, and pollution monitoring. 15.2% NOx reduction - top 5 London improvement. ULEZ expansion driving continued progress.
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🏘️ Harrow Air Pollution Overview
Harrow has improving air quality with 15.2% NOx reduction in 2024 - among top 5 boroughs for improvement following ULEZ expansion. The borough's 264,000 residents across Harrow on the Hill, Wealdstone, Stanmore, Pinner, and Rayners Lane benefit from ULEZ enforcement (£12.50 daily charge for non-compliant vehicles since Aug 2023) and London-wide clean air initiatives.
Harrow Air Quality Improvements 2024
- • 15.2% NOx Reduction: Among top 5 boroughs for improvement post-ULEZ
- • ULEZ Coverage: £12.50 daily charge for non-compliant vehicles since Aug 2023
- • London-Wide Progress: 27% NO2 decrease across all London (roadside)
- • Outer London PM2.5: 31% lower from vehicle exhausts vs without ULEZ
- • Population 264,000: All Harrow districts benefiting from improvements
- • Most Religiously Diverse: UK's most diverse local authority improving air
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