Air quality in Avenal, California, United States of America today

Mr. Duck’s Air Quality Score

Good air today for Avenal, California, United States of America

⚠️ 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 Avenal, California is classified as Good today, with PM2.5 identified as the primary pollutant.

Measurements from five valid monitoring points show a PM2.5 concentration of 7.94 µg/m³. Data is shown via OpenAQ. 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

Avenal’s OpenAQ feed draws from two monitoring rows, both located at Avenal High School (SJVAir). The dataset includes six measured pollutants: PM1, PM2.5, PM10, relative humidity, temperature and the particle count UM003. For five of these—PM1, PM2.5, relative humidity, temperature and UM003—the most recent readings were uploaded on 2026‑02‑11 at 00:00 UTC, so they are all “updated within 7 days.” The PM10 value is older, recorded on 2025‑01‑13 at 23:00 UTC, and is the only entry flagged as old data.

Across the recent measurements the observed ranges are modest. PM1 values span from essentially zero up to 5.69 µg/m³, with a median of about 2.85 µg/m³; PM2.5 varies between 0.00 and 7.94 µg/m³, centering around a median of 3.97 µg/m³. Relative humidity stays within a narrow band of roughly 33 % to 37 %, median 35 %; temperature ranges from about 13.2 °C to 21.3 °C, median 17.2 °C. The UM003 particle count shows the widest spread, from 121 particles/cm³ up to 1 673 particles/cm³, with a median near 897 particles/cm³.

Because only two rows feed the city’s data, coverage is limited to a single location and may not capture variations across Avenal. While most pollutants have fresh observations from early February 2026, the PM10 reading is over a year old, highlighting an uneven temporal completeness. Users should keep in mind that conditions can differ elsewhere in the city or at other times, given the small number of monitoring points and the mix of recent and older timestamps.

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 Avenal reflects five valid measurements and is marked as Updated today, with the most recent update recorded at 2026‑02‑11T00:00:00+00:00. This snapshot provides a current view of ambient conditions, but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment within the city.

OpenAQ station rows