Air quality in Kaunas, Kaunas County, Lithuania today

Mr. Duck’s Air Quality Score

Unhealthy air today for Kaunas, Kaunas County, Lithuania

⚠️ 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 today in Kaunas is classified as Unhealthy. The primary pollutant identified is PM2.5, with a measured concentration of 107.375 µg/m³.

Data from five valid measurements show the same fine‑particle level across the monitoring period. 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 Kaunas air‑quality feed pulls data from three monitoring sites that together contribute 17 recent observations across a set of ten measured variables: carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃) – although no current values are available for these two gases – as well as particulate matter in three size fractions (PM1, PM2.5 and PM10), relative humidity, sulfur dioxide (SO₂), temperature and particle number concentration (UM003). For most of the pollutants the newest timestamp recorded is 2026‑02‑10 18:00 UTC, indicating that the latest data are only a few days old; however CO, NO₂ and PM10 have no recent update information, so their freshness is unknown.

Across the available measurements the range of values varies widely. PM2.5 shows a minimum of about 5 µg/m³, a median near 6 µg/m³ and an extreme high of 107 µg/m³ at the Kaunas site, while PM1 spans from roughly 3.6 µg/m³ up to 62.8 µg/m³ with a median of 33 µg/m³, illustrating that finer particles can reach considerably higher concentrations than the coarser fraction. Relative humidity in the city ranges between 34.8 % and 49.2 %, centering around 42 %, and temperature swings from just above zero (0.12 °C) to a warm 25.3 °C, with a typical value near 12.7 °C. The particle number concentration (UM003) is reported between about 1,287 and 11,003 particles per cubic centimetre, medianing at roughly 6,145, which points to substantial variability in aerosol load.

Because several key gases lack recent readings and the PM10 data have no timestamp, the overall picture is incomplete. Users should keep in mind that conditions can differ across neighborhoods and over short periods, especially when only a handful of stations contribute to each pollutant’s record. The dataset does provide a fairly fresh snapshot for most particulates, humidity and temperature, but gaps remain for some gases and for PM10.

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 current dataset for Kaunas includes five valid measurements and is marked as Updated within 3 days, with the latest values recorded at 2026‑02‑10T18:00:00+00:00. These figures represent a snapshot of conditions across the city; air quality can differ by specific location and time of day, so individual experiences may vary from the reported averages.

OpenAQ station rows