Air quality in Martorell, Catalonia, Spain today

Mr. Duck’s Air Quality Score

Good air today for Martorell, Catalonia, Spain

⚠️ 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 Martorell today is classified as Good. The primary pollutant identified for the current assessment is PM10, which refers to coarser particulate matter measured in the atmosphere.

Measurements from eleven valid observations show a PM10 reference value of 12.0 micrograms per cubic metre. No other pollutants are highlighted in this report. 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 air‑quality record for Martell includes five measured pollutants – nitrogen monoxide (NO), nitrogen dioxide (NO2), total nitrogen oxides (NOX), ozone (O3) and particulate matter up to 10 µm (PM10). The dataset is built from twelve rows of sensor readings, but the number of distinct monitoring stations varies by pollutant: three stations contribute data for NO2, O3 and PM10, two stations for NO, and a single station for NOX. All values were last refreshed on 2026‑02‑10 at 03:00 UTC, so the most recent observations are less than a week old.

Across the pollutants the observed ranges differ markedly. The highest recorded concentration is 27 µg/m³ for NO2, while the lowest is 2 µg/m³ for NO; both sit near their respective median values (NO2 median 14 µg/m³, NO median 4 µg/m³). Ozone shows a single measurement of 3 µg/m³ that also happens to be its median and maximum, indicating very limited variability in the current sample. PM10 spans from 5 to 12 µg/m³ with a median of 8 µg/m³, reflecting a modest spread compared with nitrogen compounds. NOX is reported only once at 30 µg/m³, so no range can be derived for that pollutant.

Because the data come from a small number of stations and some pollutants (especially NOX) have just one reading, the picture of Martell’s air quality is necessarily coarse. Conditions can differ across neighborhoods and over time, so these figures represent a snapshot rather than a comprehensive view of the city’s atmosphere.

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 Martorell reflects 11 valid measurements and is marked as Updated within 3 days, with the latest values recorded on 2026‑02‑10T03:00:00+00:00. This snapshot provides a recent picture of ambient air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows