City comparison
London vs Tokyo air quality
Live AQI comparison between London and Tokyo. Data updates every 15 minutes.
London and Tokyo differ by 54 AQI points right now. London has cleaner air at this moment.
What drives air quality in London and Tokyo
London
London air quality changes quickly between boroughs because the city combines dense traffic routes, mixed housing, and major green corridors. Nitrogen dioxide is often highest near main roads, while finer particles spread more widely during still weather. Wind along the Thames can improve one district while leaving others under persistent urban haze.
Tokyo
Tokyo generally maintains moderate air quality for a megacity, but exposure still varies around major highways, dense rail hubs, and industrial bayside areas. Nitrogen dioxide remains a roadside concern during commuting peaks. Urban heat and building density can shape local dispersion, creating noticeable differences between districts and waterfront zones.
Both cities are shaped by different combinations of traffic density, terrain, weather patterns, and seasonal events, which is why the same AQI band can feel different on the ground. Checking live readings rather than relying on reputation or past visits is the most reliable way to plan travel, exercise, or outdoor time between the two.
Live AQI from Open-Meteo (CAMS). Conditions change hourly — refresh for the latest readings. South African cities may show WAQI station data on their dedicated pages.