Air quality in Mainz, Rhineland-Palatinate, Germany today

Mr. Duck’s Air Quality Score

Moderate air today for Mainz, Rhineland-Palatinate, Germany

⚠️ 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 Mainz today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 17.6 µg/m³ and a PM10 level of 34.4 µg/m³, based on twelve 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 Mainz includes measurements of carbon monoxide (CO), nitrogen oxides (NO and NO₂), ozone (O₃), particulate matter PM₁₀ and PM₂.₅, and sulphur dioxide (SO₂). In total eight monitoring rows are available across the city, with a combined 37 recent‑time entries; however, the freshness varies by pollutant. CO, NO₂, PM₁₀, O₃, SO₂ and PM₂.5 all have their latest values recorded on 2026‑02‑10 at 18:00 UTC, while NO is older, last updated on 2024‑03‑11 at 11:00 UTC.

Across the pollutants the number of stations reporting differs. CO and NO₂ each draw from eight stations, giving a fairly dense coverage, whereas NO is represented by seven stations, PM₁₀ by five, and O₃, SO₂ and PM₂.5 only three each. The recorded values show a wide spread for some gases: CO ranges from about 146 µg/m³ up to 1 523 µg/m³ with a median near 629 µg/m³; NO₂ varies between 18 µg/m³ and almost 59 µg/m³, median roughly 49 µg/m³. Particulate matter is less variable, with PM₁₀ spanning 21‑56 µg/m³ (median 34 µg/m³) and PM₂.5 from 17 to 44 µg/m³ (median about 18 µg/m³). O₃ and SO₂ are essentially constant in the current snapshot, each reported at a single value of 0.9975 µg/m³ and 1.000125 µg/m³ respectively.

Because some pollutants rely on only three stations and one (NO) has data that is nearly two years old, the picture of air quality in Mainz can differ noticeably between locations and over time. Users should keep in mind that the available figures represent specific monitoring points rather than a city‑wide average.

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 Mainz reflects twelve valid measurements and is updated within three days, with the latest values recorded at 2026‑02‑10T18:00:00+00:00. These figures provide a current snapshot of ambient air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in this overview.

OpenAQ station rows