Air Quality in SW1 WestminsterLive Monitor & 2026 Guide
Heart of government with high pedestrian exposure despite ULEZ implementation.
Live Air Quality
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📊 SW1 Westminster Air Quality Facts
- ⚠️AQMA Status: Central London ULEZ zone
🚗 Main Pollution Sources
- Parliament Square
- Victoria Street
- Tourist traffic
These sources contribute to elevated NO2 and PM2.5 levels, particularly during rush hours.
📅 Seasonal Air Quality Patterns
Winter (Dec-Feb) and Spring (Mar-May)
Summer (Jun-Aug)
Winter heating and spring pollen combine with traffic emissions. Cold, still weather traps pollutants.
🌬️ Protect Your Indoor Air in SW1 Westminster
Indoor air can be 2-5x more polluted than outdoor air. Our DIY air purifiers with MERV13/HEPA filters remove 99%+ of PM2.5, pollen, and allergens for a fraction of commercial purifier costs.
❓ Frequently Asked Questions
What is the current air quality in SW1 Westminster?
Use our live monitor above to check real-time air quality in SW1 Westminster. We display PM2.5, NO2 levels, and the UK Daily Air Quality Index (DAQI) with health recommendations.
Does SW1 Westminster have an Air Quality Management Area (AQMA)?
Central London ULEZ zone
What causes pollution in SW1 Westminster?
Main pollution sources in SW1 Westminster include: Parliament Square, Victoria Street, Tourist traffic.
How can I protect my family from poor air quality in SW1 Westminster?
Run a HEPA or MERV13 air purifier during high pollution days. Our DIY purifiers from £149 provide 4-6 air changes per hour for typical rooms. Use our ACH calculator to find the right size.
Helpful Resources
Health Conditions Hub
Air quality guides for asthma, allergies, COPD & more
Best Air Purifier for Asthma
NHS-aligned guide to reducing asthma triggers by 60-95%
ACH Calculator
Calculate air changes per hour for your room in 10 seconds
Air Purifier for Hayfever
Remove 95% of pollen with HEPA & MERV13 filters