Air quality in Grad Rijeka, Croatia today
Mr. Duck’s Air Quality Score
Good air today for Grad Rijeka, Croatia
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Grad Rijeka is classified as Good. The primary pollutant identified is PM2.5. Current measurements show PM2.5 at 1.3 µg/m³ and PM10 at 0.6 µg/m³, based on five valid measurements. The reference values for this category are 1.3 µg/m³ for PM2.5 and 0.6 µg/m³ for PM10, matching the observed concentrations. All five sensors reported consistent readings. The latest reading was recorded at 2026-02-23 12:00 UTC. Data is shown via OpenAQ.
These particulate concentrations align with the Good classification for Grad Rijeka today, indicating that the measured levels fall within the defined limits for this category. The data reflects the conditions observed on the reporting date and time. 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 Grad Rijeka air‑quality record draws on six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm (PM10), particulate matter 2.5 µm (PM2.5) and sulphur dioxide (SO₂) – all reported from the same monitoring site identified as RIJEKA‑2. In total the dataset contains six rows, each representing a recent observation that falls within the last thirty days; there are no older or unknown entries. The most recent timestamps cluster on 2026‑02‑09, with CO, NO₂, O₃ and SO₂ all logged at 03:00 UTC on that day. PM10 was last updated on 2026‑02‑07 at 20:00 UTC, while the PM2.5 measurement dates back to 2026‑02‑02 at 03:00 UTC, making it the oldest of the six but still within the same month.
All six pollutants show a single recorded value, so the statistical spread is effectively zero: the minimum, median and maximum are identical for each. CO registers at 300.0 µg/m³, NO₂ at 2.9 µg/m³, O₃ at 62.3 µg/m³, PM10 at 0.6 µg/m³, PM2.5 at 1.3 µg/m³ and SO₂ at 3.2 µg/m³. Because each pollutant is represented by only one observation, there is no variation to describe across the dataset, and the median values simply reflect those single points. The timing differences illustrate uneven freshness: while four gases are captured on the same recent date, the particulate‑matter readings are slightly older, indicating that updates for PM10 and especially PM2.5 occur on a less frequent schedule.
Overall, the data provides a snapshot of six key air‑quality constituents from a single location in Grad Rijeka, with all entries recorded within the past month. The uniformity of values and the limited number of rows mean the picture is concise but does not capture spatial or temporal variability that might exist elsewhere in the city.
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 Grad Rijeka includes five valid measurements and is updated within 30 days. The latest data were recorded on 2026-02-09 at 03:00 UTC. This snapshot reflects conditions at the time of measurement; air quality can vary by location and time within the city. Users should consider these factors when interpreting the values.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| RIJEKA-2 | no2 | 2.9 | µg/m³ | 2026-02-09 03:00 UTC |
| RIJEKA-2 | o3 | 62.3 | µg/m³ | 2026-02-09 03:00 UTC |
| RIJEKA-2 | pm10 | 0.6 | µg/m³ | 2026-02-07 20:00 UTC |
| RIJEKA-2 | pm25 | 1.3 | µg/m³ | 2026-02-02 03:00 UTC |
| RIJEKA-2 | so2 | 3.2 | µg/m³ | 2026-02-09 03:00 UTC |