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Air quality in Nagano

Air quality index (AQI⁺) and PM2.5 air pollution in Nagano • 02:30, Sep 02

Atmospheric Environmental Regional Observation System (AEROS)Nagano Prefectural GovernmentKanagawa Prefectural Government
Atmospheric Environmental Regional Observation System (AEROS)Nagano Prefectural GovernmentKanagawa Prefectural Government

Live most polluted city ranking

Real-time Nagano most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Japan

Hakuba

52

2
The national flag of Japan

Toyonomachi Toyono

39

3
The national flag of Japan

Matsumoto

33

4
The national flag of Japan

Chikuma

28

5
The national flag of Japan

Saku

22

6
The national flag of Japan

Iida

19

7
The national flag of Japan

Okaya

19

8
The national flag of Japan

Suwa

19

9
The national flag of Japan

Ueda

17

10
The national flag of Japan

Ina

14

Live cleanest city ranking

Real-time Nagano cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Japan

Kiso

1

2
The national flag of Japan

Habaue

3

3
The national flag of Japan

Nagano

3

4
The national flag of Japan

Ina

14

5
The national flag of Japan

Ueda

17

6
The national flag of Japan

Iida

19

7
The national flag of Japan

Okaya

19

8
The national flag of Japan

Suwa

19

9
The national flag of Japan

Saku

22

10
The national flag of Japan

Chikuma

28

Wildfires in Nagano

Real-time information

Active fires

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IQAir Healthpro Plus XE in a living room
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Do air purifiers remove odors or just reduce them?

Dense forest burning.
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Wildfire Map Spotlight: Austin Fire, Oregon

Evening view of Portland.
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September 1, 2026: Portland among top 10 most polluted cities in the world

Which is the most polluted city in Nagano?