Air quality in Stockholm, Sweden today

Mr. Duck’s Air Quality Score

Good air today for Stockholm, Sweden

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Stockholm is classified as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements from 35 valid monitoring stations show a PM2.5 reference value of 9.0 and a PM10 reference value of 42.3. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The dataset for Stockholm contains measurements for five pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂, written as NO2), ozone (O₃, written as O3), particulate matter 10 µm or less (PM10) and particulate matter 2.5 µm or less (PM2.5). In total 66 rows of data are recorded across 20 monitoring stations, but the number of recent observations varies by pollutant. CO is represented by only three rows, with two of those updated on 2026‑02‑10 at 18:00 UTC; NO₂ has 24 rows, PM10 20 rows, PM2.5 14 rows and O₃ five rows, all refreshed within the last seven days.

Across the pollutants the measured values span a wide range. CO shows a minimum of about 208 µg/m³ and peaks at 542 µg/m³, with a median near 446 µg/m³; NO₂ ranges from an impossible negative placeholder to 58 µg/m³, median 20.5 µg/m³ and the 90th percentile around 44 µg/m³; PM10 varies between the same negative placeholder and 212 µg/m³, median 30 µg/m³ and a 90th‑percentile of roughly 81 µg/m³; PM2.5 extends from the placeholder up to an extreme 898 µg/m³, median 8.9 µg/m³ and 90th‑percentile near 23 µg/m³; O₃ is the only pollutant without a negative placeholder, ranging from 31 µg/m³ to 76 µg/m³, median 52 µg/m³ and 90th‑percentile about 70 µg/m³. The most recent individual readings are NO₂ at 21.8 µg/m³ on Norrlandsgatan (2026‑02‑10 19:00 UTC), PM10 at 42.3 µg/m³ on the same street, PM2.5 at 8.8 µg/m³ on Hornsgatan (2026‑02‑10 19:00 UTC), O₃ at 61.534 µg/m³ on Stockholm Torkel Knutssongatan (2026‑02‑10 18:00 UTC) and CO at 542.169 µg/m³ on Stockholm Sveavägen 59 Gata (2026‑02‑10 18:00 UTC).

Because the number of rows differs markedly – only a handful for CO and O₃ versus dozens for NO₂, PM10 and PM2.5 – spatial coverage is uneven, meaning conditions can differ noticeably between locations and times. While most data are fresh (updated within the past week), the limited station count for some pollutants suggests that city‑wide averages may not capture localized variations fully.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The dataset for Stockholm includes 35 valid measurements and is updated within 3 days, with the most recent values recorded on 2026‑02‑10T19:00:00+00:00. These figures represent a citywide snapshot; actual air quality can differ across neighborhoods and change throughout the day. Use this information as a general reference rather than a precise real‑time reading for any specific location.

OpenAQ station rows