How it helps
Use it for a focused task
This page helps you decide if it's safe to do outdoor activities like running, cycling, or walking in London when smoke or poor air quality is present. Enter your planned activity, duration, and health factors to get a risk rating and specific protective measures.
Select your activity from the dropdown or type a custom one. Enter how long you plan to be outside in minutes.
Check any health conditions that might make you more sensitive to air pollution. Click 'Get Advice' to see your risk level and recommendations.



