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Potential sources of exposure

Understanding where air pollution comes from helps you make informed decisions about where you spend time. AirScape helps you identify pollution hotspots and their likely sources.

Common pollution sources​

Traffic and vehicles​

  • Busy roads and junctions: High traffic volume means more exhaust emissions
  • Petrol stations: Fuel vapors and idling vehicles create pollution spikes
  • Car parks: Concentrated vehicle emissions in enclosed or semi-enclosed spaces
  • Bus stations and depots: Diesel vehicles produce high NO2 and particulate matter
  • Loading zones: Delivery vehicles often idle while loading/unloading

Industrial sources​

  • Factories and manufacturing: Various pollutants depending on the industry
  • Power plants: Emissions from electricity generation
  • Waste processing: Incinerators and landfill operations
  • Chemical facilities: Volatile organic compounds and other emissions

Construction​

  • Building sites: Dust, diesel equipment, and material handling
  • Road works: Dust and machinery emissions
  • Demolition: Particulate matter from breaking down structures

Other sources​

  • Airports: Aircraft emissions and ground support vehicles
  • Railways: Diesel trains and brake dust
  • Restaurants and takeaways: Cooking emissions, especially from frying
  • Heating systems: Boilers and furnaces, particularly during winter

Using AirScape to identify sources​

  1. Explore the heat map: Look for pollution hotspots in your area
  2. Check multiple pollutants: Different sources produce different pollutants
    • High NO2 often indicates traffic
    • High PM levels may suggest construction or industry
  3. Look at patterns:
    • Rush hour spikes suggest traffic
    • Consistent high levels may indicate industrial sources
  4. Compare times: Industrial sources may operate on schedules

Taking action​

Once you've identified pollution sources:

  • Adjust your routes: Avoid walking or cycling near pollution hotspots
  • Time your activities: Plan outdoor time when pollution is lower
  • Report concerns: Contact local authorities about excessive emissions
  • Join community efforts: Work with neighbors to address local pollution sources
  • Advocate for change: Support policies that reduce emissions in your area