Norway AQI Analytics

OpenAQ-derived PM2.5 and PM10 history for 21 cities, mapped to AQI Now city pages and normalized to the US EPA AQI scale.

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City

The highest average AQI in this pilot slice is Hamar, with an EPA AQI average of 46 and PM2.5 around 10.3 ug/m3. Its worst month is January.

Source: OpenAQ local parquet plus raw CSV coordinate recovery. Build 2026-05-12T00:27:56.105574+00:00.

Country average

US EPA scale

PM2.5 7.6 ug/m3 · PM10 15.3 ug/m3

Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI.

21 eligible cities

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

21 eligible cities

Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.

21 eligible cities

City	Avg AQI	PM2.5	Worst month	Trend	Coverage
Hamar Innlandet, Norway	46	10.3 ug/m3	January	n/a	343 days · 2 locations
Brumunddal Innlandet, Norway	44	10.4 ug/m3	January	n/a	362 days · 1 locations
Lørenskog Viken, Norway	43	9.4 ug/m3	January	n/a	348 days · 3 locations
Porsgrunn Vestfold og Telemark, Norway	43	9.2 ug/m3	January	n/a	363 days · 3 locations
Oslo Oslo, Norway	42	8.8 ug/m3	January	n/a	364 days · 12 locations
Sarpsborg Viken, Norway	42	9.1 ug/m3	January	n/a	356 days · 2 locations
Moss Viken, Norway	42	8.7 ug/m3	January	n/a	328 days · 1 locations
Fredrikstad Viken, Norway	41	9.3 ug/m3	January	n/a	362 days · 2 locations
Drammen Viken, Norway	39	8.6 ug/m3	January	n/a	362 days · 3 locations
Sandvika Viken, Norway	39	8.4 ug/m3	January	n/a	352 days · 3 locations
Frøn Oslo, Norway	38	7.8 ug/m3	January	n/a	363 days · 6 locations
Elverum Innlandet, Norway	36	7.7 ug/m3	January	n/a	362 days · 1 locations
Kristiansand Agder, Norway	36	7.2 ug/m3	January	n/a	345 days · 1 locations
Lillehammer Innlandet, Norway	34	6.4 ug/m3	December	n/a	349 days · 2 locations
Mo i Rana Nordland, Norway	33	6.8 ug/m3	March	n/a	359 days · 1 locations
Gjøvik Innlandet, Norway	32	6.2 ug/m3	January	n/a	340 days · 1 locations
Trondheim Trøndelag, Norway	29	5.6 ug/m3	May	n/a	362 days · 6 locations
Bergen Vestland, Norway	28	5.6 ug/m3	January	n/a	363 days · 3 locations
Askøy Vestland, Norway	27	5.2 ug/m3	January	n/a	361 days · 1 locations
Åsane Vestland, Norway	22	4.1 ug/m3	January	n/a	359 days · 1 locations
Bodø Nordland, Norway	19	3.7 ug/m3	April	n/a	362 days · 1 locations