Air quality in Chula Vista, California, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Chula Vista, California, United States of America
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Chula Vista today is classified as Good. The primary pollutant measured is PM2.5, with a reported concentration of 7.9 µg/m³. In addition, the PM10 level is recorded at 27.0 µg/m³ based on three valid observations.
Data are shown via OpenAQ and reflect the current monitoring results for the city. 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 Chula Vista draws from three recorded observations collected at a single monitoring site. All three pollutants—ozone (O₃), particulate matter ≤ 10 µm (PM10) and particulate matter ≤ 2.5 µm (PM2.5)—are represented, each with one recent measurement that was last refreshed on 2026‑02‑10 at 23:00 UTC. Because the data come from only one station, coverage is limited to conditions measured at that specific location rather than a citywide network.
For ozone the reported value is 0.04 ppm, and both the minimum, median and maximum recorded figures are identical, indicating no observed variation in the sampled period. Particulate matter shows a similar pattern: PM10 is consistently 27.0 µg/m³ across its min‑median‑max set, while PM2.5 remains steady at 7.9 µg/m³. The lack of spread (the 10th and 90th percentiles match the single value) reflects that each pollutant has only one data point rather than a distribution over time or space.
All three pollutants share the same freshness status—each entry is marked as “Updated within 7 days,” confirming that the most recent reading is less than a week old. However, because there are no older or additional rows, the dataset cannot illustrate longer‑term trends or day‑to‑day fluctuations for Chula Vista. Users should keep in mind that air quality can differ across neighborhoods and over time, and the current snapshot provides only a narrow view of conditions at one moment from a single monitoring location.
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 reflects three valid measurements and is updated within 3 days, with the most recent reading recorded at 2026‑02‑10T23:00:00+00:00. 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 Chula Vista.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Chula Vista | o3 | 0.04 | ppm | 2026-02-10 23:00 UTC |
| Chula Vista | pm10 | 27.0 | µg/m³ | 2026-02-10 23:00 UTC |
| Chula Vista | pm25 | 7.9 | µg/m³ | 2026-02-10 23:00 UTC |