Air quality in The Hague, South Holland, Netherlands today

Mr. Duck’s Air Quality Score

Moderate air today for The Hague, South Holland, Netherlands

⚠️ 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 The Hague today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of approximately 27.68 µg/m³ and a PM10 level near 15.95 µg/m³, based on 17 valid observations.

Data are 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

The dataset for The Hague contains measurements from five monitoring stations spread across the city, giving a total of twenty‑two individual rows of data. All eight pollutants tracked by OpenAQ are represented: nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3), particulate matter 1 µm (PM1), particulate matter 10 µm (PM10), fine particulate matter 2.5 µm (PM2.5), relative humidity and temperature. The most recent observations are from 2026‑02‑10 21:00 UTC for NO, NO2, O3 and PM10, and from 2026‑02‑10 22:00 UTC for PM1, PM2.5, relative humidity and temperature, so the data are all less than two days old.

Across the city the measured values show a modest spread. For nitrogen monoxide the recorded range is 2.52 to 6.35 µg/m³ with a median of 2.82 µg/m³, while nitrogen dioxide varies between 47.2 and 50.95 µg/m³ (median 49.29 µg/m³). Ozone concentrations are low, ranging from 6.42 to 11.04 µg/m³ with a median of 8.73 µg/m³. Particulate matter shows the widest variability: PM10 values sit between 13.39 and 15.95 µg/m³ (median 14.67 µg/m³), PM2.5 spans 11.63 to 46.12 µg/m³ (median 27.68 µg/m³) and PM1 ranges from 13.36 to 26.90 µg/m³ (median 20.13 µg/m³). The meteorological readings are also consistent, with relative humidity between 60.21 % and 67.25 % (median 63.73 %) and temperature from 8.21 °C to 12.80 °C (median 10.51 °C).

Because the number of rows differs by pollutant—three stations contribute NO, NO2 and O3 data while only two provide PM1, PM2.5, humidity and temperature—the spatial coverage is uneven. Nevertheless, all pollutants have at least one recent measurement, indicating that the current snapshot reflects conditions across multiple parts of The Hague within the last 48 hours.

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 The Hague reflects 17 valid measurements and is updated within 3 days, with the latest values recorded on 2026‑02‑10T22:00:00+00:00. This snapshot provides a current view of city‑wide air quality but note that conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these aggregated figures.

OpenAQ station rows