Air quality in Valparaíso, Valparaiso Region, Chile today
Mr. Duck’s Air Quality Score
Moderate air today for Valparaíso, Valparaiso Region, Chile
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Valparaíso today is classified as Moderate. The primary pollutant identified is PM2.5, fine particulate matter, with a measured concentration of 15.0 µg/m³. This assessment is based on a single valid measurement reported through OpenAQ.
Data for this location show no additional pollutants recorded, and the PM10 reference value is not applicable. The information presented reflects the current observation without speculation 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
The Valparaíso air‑quality dataset contains six pollutant measurements drawn from a single monitoring station. All six standard pollutants—carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM10), particulate matter ≤2.5 µm (PM2.5) and sulfur dioxide (SO₂)—are represented, but the timing of their most recent observations varies widely.
Four of the pollutants (CO, NO₂, O₃ and SO₂) have not been updated since 2017‑06‑28 15:00 UTC, and PM10 also dates back to 2017‑06‑28 16:00 UTC. In contrast, the PM2.5 reading is current, with its latest value recorded on 2026‑02‑10 13:00 UTC. Because five of the six series are over six years old, the dataset reflects historical conditions rather than present‑day air quality for those gases and particles.
The numeric values themselves show a stark contrast. CO, NO₂, O₃, PM10 and SO₂ all report a uniform value of 0.0 µg/m³ (minimum, median and maximum are identical), indicating either non‑detectable concentrations or missing data for the recorded periods. PM2.5 is the only pollutant with a non‑zero measurement, reporting a single consistent value of 15.0 µg/m³ across its minimum, median and maximum. This limited spread suggests that, at the time of the latest observation, fine particulate matter was the sole metric providing any quantitative insight.
Overall, the data coverage for Valparaíso is narrow: only one station contributes all rows, and most pollutants are represented by outdated entries. Users should keep in mind that air‑quality conditions can differ across neighborhoods and over time, and the available figures may not capture current variations in the city’s atmosphere.
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 Valparaíso reflects a single valid measurement and is updated within 3 days, with the latest reading recorded on 2026‑02‑10 at 13:00 UTC. This snapshot provides a brief view of current conditions; however, 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
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Valparaiso | co | 0.0 | µg/m³ | 2017-06-28 15:00 UTC |
| Valparaiso | no2 | 0.0 | µg/m³ | 2017-06-28 15:00 UTC |
| Valparaiso | o3 | 0.0 | µg/m³ | 2017-06-28 15:00 UTC |
| Valparaiso | pm10 | 0.0 | µg/m³ | 2017-06-28 16:00 UTC |
| Valparaiso | pm25 | 15.0 | µg/m³ | 2026-02-10 13:00 UTC |
| Valparaiso | so2 | 0.0 | µg/m³ | 2017-06-28 15:00 UTC |