Worst now

Nagano air quality today

Matsumoto Nagano17 GoodUS AQI

Clear air is not just pleasant, it is preventive health

Updated 4:00 am JST · MOE Japan

2 cities in Nagano are reporting. Median US AQI 17 (Good). Matsumoto is at 17 (Good); Nagano is cleanest at 17.

#	City	US AQI
1	Matsumoto	17
2	Nagano	17

Updated 4:00 am JST. Source: Ministry of the Environment, Japan · AEROS (soramame.env.go.jp) · preliminary data.