Air Quality in MertonLive Monitor & 2026 Guide
South London borough home to Wimbledon, with mixed air quality across areas.
Live Air Quality
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📊 Merton Air Quality Facts
- 👥Population: 206,548
- 🏛️Council: London Borough of Merton
- ⚠️AQMA Status: Focus areas: A24 and Wimbledon town centre
- 🏥Health: 6.5% adult asthma prevalence
🚗 Main Pollution Sources
- A24
- A3
- Wimbledon town centre
- Colliers Wood
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 Merton
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 Merton?
Use our live monitor above to check real-time air quality in Merton. We display PM2.5, NO2 levels, and the UK Daily Air Quality Index (DAQI) with health recommendations.
Does Merton have an Air Quality Management Area (AQMA)?
Focus areas: A24 and Wimbledon town centre
What causes pollution in Merton?
Main pollution sources in Merton include: A24, A3, Wimbledon town centre, Colliers Wood.
How can I protect my family from poor air quality in Merton?
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