Pollution Rankings in Japan

The pollution ranking for Japan is based on a combination of visitor perceptions and data from institutions like the World Health Organization. The Pollution Index estimates overall pollution levels by considering air and water pollution, garbage disposal, and other factors, with air pollution given the highest weight, while the Pollution Exp Scale uses an exponential function to highlight extremely polluted cities.

Osaka

#1 in Pollution (#198 worldwide)

Osaka's air quality in 2024 is moderate, with some concerns particularly related to particulate matter. While improvements are being made, there's room for further enhancement in air quality. Particulate matter from urban activities is the primary contributor to air pollution levels. However, Osaka residents generally report satisfaction with current air quality improvements.

Tokyo

#2 in Pollution (#221 worldwide)

Tokyo manages its air quality issues diligently, although pollution remains a moderate concern due to urban density and industrial activity. The city's environmental policies are crucial in addressing these challenges. While Tokyo's air quality indexes fall within a moderate range, ongoing efforts are essential to reduce particulate matter and improve overall conditions.