Air quality in Riga, Latvia today

Mr. Duck’s Air Quality Score

Moderate air today for Riga, Latvia

⚠️ 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 Riga is currently classified as Moderate. The main pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 28.0 and a PM10 reference value of 37.0, based on eleven valid observations collected via OpenAQ.

These figures reflect the present assessment for the city without implying any trend or forecast. 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

Riga’s open‑air quality feed includes six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10), particulate matter 2.5 µm or less (PM2.5) and sulphur dioxide (SO₂). The dataset contains 16 recent observations drawn from three monitoring stations across the city, but the number of rows differs by pollutant. CO, NO₂ and O₃ each have four recent records, PM10 has three, SO₂ two and PM2.5 only a single entry.

All timestamps are fresh, with the most recent readings recorded on 2026‑02‑10 at either 14:00 or 18:00 UTC, meaning every pollutant’s latest value is no older than seven days. The CO reading from Riga‑Valdemara street shows a maximum of 503 µg/m³, while the median across its four rows sits at 478.5 µg/m³ and the lowest observed value is 454 µg/m³. NO₂ values range from 50.939 to 64.426 µg/m³, with a median of 55.516 µg/m³; O₃ spans 24.117 to 31.895 µg/m³ and centers around 27.286 µg/m³. PM10 measurements are tightly clustered between 34 and 37 µg/m³, median 35 µg/m³. SO₂ is very low, from 0.104 up to 0.600 µg/m³, with a median of 0.352 µg/m³. The lone PM2.5 entry records exactly 28 µg/m³.

Because the coverage is uneven – some pollutants are represented by only one or two rows while others have four – the snapshot reflects conditions at specific sites rather than a uniform city‑wide picture. Users should keep in mind that air quality can vary across different neighborhoods and times, and the current dataset captures only the most recent points from the available stations.

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 data shown for Riga are based on 11 valid measurements and were refreshed recently, with the latest update recorded at 2026‑02‑10T18:00:00+00:00 (Updated within 3 days). This snapshot reflects conditions at the time of collection; air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows