Air quality in Darrington, Washington, United States of America today

Mr. Duck’s Air Quality Score

Good air today for Darrington, Washington, 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 Darrington today is classified as Good. The primary pollutant identified for this assessment is PM2.5 (fine particles).

A single valid measurement recorded a PM2.5 concentration of 2.0 µg/m³, and no PM10 value is available for the current data set. This reflects the only observation used to determine the overall rating. 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 current station data listed for this city is focused on particulate matter (PM). In Darrington the dataset contains three rows of measurements from a single monitoring location, reporting only PM2.5 concentrations in micrograms per cubic metre. The most recent reading was recorded at 2026-02-10 23:00 UTC and is marked as updated within seven days, while the remaining entries are older than that threshold.

Across the available records the reported values are tightly clustered: the minimum observed concentration is –2.0 µg/m³, the median is 2.0 µg/m³ and the maximum also equals 2.0 µg/m³, with the 10th percentile at –1.2 µg/m³ and the 90th percentile at 2.0 µg/m³. Because only one pollutant type is captured and all measurements come from a single site, the coverage is limited both in terms of geographic spread and temporal freshness. Consequently, while these figures give a snapshot for the specific location on the noted date, air quality conditions elsewhere in Darrington may differ and later updates could change the picture.

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 a single valid measurement 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 rapidly throughout the day, so values may not represent every location or moment in Darrington.

OpenAQ station rows