Air quality in Huasco, Atacama Region, Chile today

Mr. Duck’s Air Quality Score

Moderate air today for Huasco, Atacama Region, Chile

⚠️ 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 Huasco today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).

Measurements recorded by OpenAQ show a PM2.5 concentration of 20.0 µg/m³ and a PM10 level of 25.0 µg/m³, based on ten valid observations. 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 Huasco air‑quality record contains data for six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3), particulate matter ≤10 µm (PM10), particulate matter ≤2.5 µg (PM2.5) and sulfur dioxide (SO2). Across the city there are 13 individual data rows drawn from eight monitoring stations, but the freshness of those observations varies widely. The most recent measurements were taken on 2026‑02‑10 at 13:00 UTC for SO2, PM2.5 and the associated station details; the PM10 reading is slightly older, last updated on 2026‑02‑05 at 14:00 UTC. All other pollutants – CO, NO2 and O3 – rely on a single record each that dates back to 2021‑08‑20 at 21:00 UTC, so those values are more than four years old.

For the three pollutants with recent data, the observed concentrations show modest spreads. SO2 ranged from 15.13 to 26.04 µg/m³ with a median of 18.75 µg/m³ and a 10th‑percentile of 15.71 µg/m³, while PM2.5 varied between 13.0 and 20.0 µg/m³ (median 15.0 µg/m³, 90th‑percentile 19.0 µg/m³). The single PM10 value is a constant 25.0 µg/m³ at the “21 de Mayo” site. In contrast, the older CO reading stands at 209.6 µg/m³, NO2 at 18.31 µg/m³ and O3 at 302.74 µg/m³, each reported from the same “EME F” station.

Overall, the dataset provides a fairly complete pollutant list but is uneven in temporal coverage: half of the rows are recent (within three days), two are within the past month, while the remaining entries are several years old. Consequently, the current snapshot reflects only limited locations and times, and actual air‑quality conditions in Huasco may differ across neighborhoods and throughout the day.

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 Huasco reflects ten valid measurements and was updated within three days, with the most recent update recorded at 2026‑02‑10 13:00 UTC. These values represent a snapshot of conditions captured by the monitoring network; air quality can vary across different neighborhoods and times of day within the city, so individual experiences may differ from the reported figures.

OpenAQ station rows