Air quality in Atlanta, Georgia, United States of America today

Mr. Duck’s Air Quality Score

Moderate air today for Atlanta, Georgia, 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 Atlanta today is classified as Moderate. The primary pollutant identified for this assessment is PM2.5 (fine particles).

Measurements recorded by OpenAQ show a PM2.5 concentration of 10.81 µg/m³ based on twelve 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 Atlanta air‑quality dataset pulls in measurements from a total of 24 sensor rows, with 20 reporting in real time and four providing recent historical values. Across these stations the available pollutants are carbon monoxide (CO), nitrogen oxides (NO, NO2, NOX), ozone (O3), particulate matter of three size fractions (PM1, PM2.5, PM10), relative humidity, sulfur dioxide (SO2), temperature, and particle count (UM003). Freshness varies: the most recent updates for PM2.5, PM1, relative humidity, temperature and UM003 were recorded on 2026‑02‑11 at 00:00 UTC, while the latest ozone reading dates back to 2025‑11‑03 15:00 UTC and the newest sulfur dioxide value was logged on 2026‑02‑10 23:00 UTC. PM10 data are older still, with its last entry from 2025‑01‑13 23:00 UTC.

Looking at the numbers, PM2.5 concentrations in Atlanta range from about 3 µg/m³ up to roughly 12 µg/m³, with a median near 11 µg/m³; the spread is modest, as the 10th percentile sits at 5.3 µg/m³ and the 90th at 11.8 µg/m³. PM1 shows a broader relative range, from just under 2 µg/m³ to about 5.3 µg/m³, with a median of 3.6 µg/m³. Particulate matter larger than 10 µm (PM10) is less consistently covered – only two stations report it and the values span from roughly 6 µg/m³ to over 51 µg/m³, indicating considerable variability where data exist.

Humidity measurements are confined to a narrow band between 26 % and 45 %, centering around 35 %. Temperature readings cluster tightly between 19 °C and 22 °C, with a median of about 20 °C. The particle count (UM003) varies from roughly 497 to 569 particles per cubic centimetre, with most observations near the mid‑500s. Because many pollutants have only a handful of recent rows while others rely on older data, conditions can differ noticeably across neighborhoods and times, and the dataset reflects that uneven spatial and temporal coverage.

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 twelve valid measurements and was Updated today (last refreshed on 2026‑02‑11T00:00:00+00:00). These readings provide a snapshot of current conditions, but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment within Atlanta.

OpenAQ station rows