Air quality in Nacimiento, Biobio Region, Chile today

Mr. Duck’s Air Quality Score

Moderate air today for Nacimiento, Biobio 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 Nacimiento today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 15.0 µg/m³ and a PM10 reference value of 39.0 µg/m³, based on six valid observations collected via OpenAQ.

These values reflect the current conditions without implying any trend or cause. 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 dataset for Nacimiento includes six measured 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). All values come from a total of twelve rows collected at two monitoring stations, so each pollutant is represented by only a few observations.

The most recent measurements are for the particulates and SO₂, recorded on 2026‑02‑10 13:00 UTC. Those readings show PM10 ranging from 23 µg/m³ to 39 µg/m³ with a median of 31 µg/m³, PM2.5 tightly clustered between 14 µg/m³ and 15 µg/m³ (median 14.5 µg/m³), and SO₂ staying around 12.65‑12.69 µg/m³ (median 12.67 µg/m³). In contrast, the gas‑phase pollutants are older: CO, NO2 and O3 were last updated on 2021‑08‑20 20:00 UTC. Their recorded spans are broader – CO varies from 235.83 to 441.89 µg/m³ (median 338.86 µg/m³), NO2 from 8.37 to 16.0 µg/m³ (median 12.18 µg/m³) and O3 from 39.34 to 45.49 µg/m³ (median 42.42 µg/m³). The ten‑percentile values sit near the lower ends of each range, while the ninetieth percentiles approach the maximums, indicating a noticeable spread especially for CO.

Overall, the data set is uneven: half of the pollutant rows are classified as “old” (six out of twelve) and none are marked as unknown or very recent. This means that while the latest particulate readings reflect conditions from just a few days ago, the gas‑phase figures may not represent current air quality in Nacimiento. Because only two stations contribute data, spatial variation across the city is likely under‑captured, and users should keep in mind that actual conditions can differ by location and time.

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 Nacimiento includes six valid measurements and is marked as Updated within 3 days; the latest values were recorded on 2026‑02‑10 at 13:00 UTC. This snapshot reflects conditions at that specific time, but air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows