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

Mr. Duck’s Air Quality Score

Moderate air today for Compton, 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 Compton today falls into the Moderate category. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 11.6 µg/m³ and a PM10 reference value of 28.0 µg/m³, based on seven valid observations collected via OpenAQ.

These values reflect the current monitoring snapshot 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 Compton air‑quality record draws from a single monitoring site that contributed seven data rows in the past week, so every entry is fresh – the most recent timestamp for each pollutant is 2026‑02‑10 23:00 UTC. All seven pollutants measured by OpenAQ are represented: carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO₂), total oxides of nitrogen (NOX), ozone (O₃), particulate matter ≤10 µm (PM₁₀) and particulate matter ≤2.5 µm (PM₂.₅). Because the dataset consists of only one station, coverage across the city is limited to that location’s immediate surroundings.

Across the seven rows each pollutant shows a single recorded value, so there is no spread to describe variability. CO consistently reads 0.1 ppm, NO stays at 0.0005 ppm, NO₂ at 0.0055 ppm and NOX at 0.0061 ppm (rounded). Ozone registers 0.036 ppm. The particulate measurements are likewise uniform: PM₁₀ is 28.0 µg/m³ and PM₂.5 is 11.6 µg/m³ for every entry. Median, minimum and maximum values are identical for each pollutant, indicating that the limited sampling does not capture fluctuations that may occur over time or across different parts of Compton.

The data set’s freshness is a strength – all seven rows were updated within the last seven days – but its narrow spatial scope means conditions elsewhere in the city could differ. With only one monitoring point, any temporal changes or localized spikes would not be reflected here, so the figures provide a snapshot of air quality at that specific site rather than a comprehensive picture for the entire municipality.

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 seven valid measurements and is updated within three days, with the most recent reading recorded on 2026‑02‑10 at 23:00 UTC. While these values provide a current snapshot of air quality across Compton, California, conditions can differ by specific neighborhoods and times of day, so local variations may exist beyond what is captured here.

OpenAQ station rows