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Air quality in Capital Region

Air quality index (AQI⁺) and PM2.5 air pollution in Capital Region • 20:10, Sep 01

Danish Air Quality Monitoring ProgrammeDepartment of Environmental ScienceInstitut for MiljøvidenskabLuis Alberto Pérez GarcíaNiels Erik ClausenchristiansenAnonymous contributor
Danish Air Quality Monitoring ProgrammeDepartment of Environmental ScienceInstitut for MiljøvidenskabLuis Alberto Pérez GarcíaNiels Erik ClausenchristiansenAnonymous contributor

Live most polluted city ranking

Real-time Capital Region most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Denmark

Copenhagen

32

2
The national flag of Denmark

Flong

16

3
The national flag of Denmark

Hillerød

14

4
The national flag of Denmark

Hornbaek

11

5
The national flag of Denmark

Pedersker

11

6
The national flag of Denmark

Kongens Lyngby

1

Live cleanest city ranking

Real-time Capital Region cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Denmark

Kongens Lyngby

1

2
The national flag of Denmark

Hornbaek

11

3
The national flag of Denmark

Pedersker

11

4
The national flag of Denmark

Hillerød

14

5
The national flag of Denmark

Flong

16

6
The national flag of Denmark

Copenhagen

32

Wildfires in Capital Region

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 Capital Region?