Air quality in Daviess County, Kentucky, United States of America today

Mr. Duck’s Air Quality Score

Moderate air today for Daviess County, Kentucky, 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 Daviess County, Kentucky is classified as Moderate today. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 13.1 µg/m³ based on two valid observations reported through OpenAQ.

No additional pollutants reached reporting thresholds, and the data reflect the current monitoring snapshot for this location. 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 Daviess County air‑quality feed includes measurements for ozone (O₃), fine particulate matter (PM₂.5), coarse particles (PM₁₀), ultrafine particles (PM₁), relative humidity, temperature and particle count (UM003). The dataset is built from three monitoring stations that together contribute ten rows of observations. For the two pollutants with recent updates—PM₂.5 and O₃—the latest timestamps are 2026‑02‑11 00:00 UTC, meaning they were refreshed within the past week. All other variables (PM₁, PM₁₀, relative humidity, temperature and UM003) have no recorded update time, so their freshness is unknown.

Across the recent data, PM₂.5 values range from a low of 4.1 µg/m³ to a high of 13.1 µg/m³, with a median of about 9.0 µg/m³ and the central 80 % falling between roughly 5.1 and 12.3 µg/m³. Ozone concentrations sit between 0.029 ppm and 0.032 ppm, centering on a median of 0.0305 ppm; the 10th‑percentile is 0.0293 ppm and the 90th‑percentile is 0.0317 ppm. By contrast, the single readings for PM₁ (6.87 µg/m³), PM₁₀ (10.61 µg/m³), relative humidity (86.4 %), temperature (26.3 °C) and UM003 (2 545.75 particles/cm³) are static, with no indication of when they were recorded.

Because only two pollutants have recent timestamps, the overall picture is uneven: half of the measured parameters lack any freshness information, while the other half provide a snapshot from just a few days ago. This means that while you can see current ranges for PM₂.5 and ozone, conditions for the remaining variables may be outdated or missing entirely. With only three stations contributing data, spatial coverage is limited, so air‑quality conditions can differ across Daviess County depending on location and time of day.

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 set for Daviess County includes two valid measurements and was updated today (2026‑02‑11T00:00:00+00:00). These readings represent the most recent information available from our monitoring network, but air quality can vary by location and time within the county, so conditions at any specific spot may differ from this snapshot.

OpenAQ station rows