Denmark AQI Analytics
OpenAQ-derived PM2.5 and PM10 history for 7 cities, mapped to AQI Now city pages and normalized to the US EPA AQI scale.
Search city analytics
- Cities
- 7
- Locations
- 12
- Daily rows
- 945
- Avg EPA AQI
- 29
with OpenAQ history
mapped monitors
2024-01-01 to 2024-12-31
8.8 ug/m3 PM2.5
Current data story
The highest average AQI in this pilot slice is Aalborg, with an EPA AQI average of 48 and PM2.5 around 12.1 ug/m3. Its worst month is September.
Source: OpenAQ local parquet plus raw CSV coordinate recovery. Build 2026-05-12T00:27:56.105574+00:00.
Country average
29
US EPA scale
PM2.5 8.8 ug/m3 · PM10 11.1 ug/m3
Analytics tools
City AQI Comparison
LiveRank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI.
7 eligible cities
Open toolSeasonal Pollution
LiveFind each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
7 eligible cities
Open toolHealth Impact
LiveTranslate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
5 eligible cities
Open toolCities ranked by average AQI
| City | Avg AQI | PM2.5 | Worst month | Trend | Coverage |
|---|---|---|---|---|---|
| Aalborg Nordjylland, Denmark | 48 | 12.1 ug/m3 | September | n/a | 104 days · 1 locations |
| Lystrup Midtjylland, Denmark | 44 | 11.1 ug/m3 | October | n/a | 78 days · 1 locations |
| Silkeborg Midtjylland, Denmark | 32 | 6.2 ug/m3 | December | n/a | 23 days · 1 locations |
| Jyllinge Sjælland, Denmark | 29 | 7.4 ug/m3 | October | n/a | 96 days · 1 locations |
| Copenhagen Hovedstaden, Denmark | 28 | 7.2 ug/m3 | September | n/a | 117 days · 5 locations |
| Aarhus Midtjylland, Denmark | 15 | n/a ug/m3 | May | n/a | 234 days · 1 locations |
| Roskilde Sjælland, Denmark | 10 | n/a ug/m3 | March | n/a | 293 days · 2 locations |