Air quality in Le Havre, Normandy, France today

Mr. Duck’s Air Quality Score

Good air today for Le Havre, Normandy, France

⚠️ 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 Le Havre today is classified as Good. The primary pollutant measured is PM2.5, with a reference concentration of 3.4 µg/m³, while the accompanying PM10 level stands at 7.0 µg/m³ based on nine valid observations.

Data are shown via OpenAQ and reflect the current monitoring results for the city. 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

Le Havre’s OpenAQ feed currently provides data for seven measured pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulphur dioxide (SO₂). The dataset contains 18 recent rows spread across five monitoring stations, but the freshness of those rows varies markedly by pollutant. The most up‑to‑date observations are from 2026‑02‑10 15:00 UTC for NO₂, SO₂, PM₁₀, PM₂.₅ and O₃, while the latest CO reading dates back to 2019‑01‑08 09:00 UTC and the newest NO value is from 2024‑03‑11 09:00 UTC, indicating that carbon monoxide and nitrogen oxide are represented by older measurements.

Across the recent records, NO₂ reaches a maximum of 46.6 µg/m³ at the Lafaurie‑montant site with a median of 22.7 µg/m³ and a lower tenth percentile near 11.2 µg/m³, showing a fairly wide spread. SO₂ values are low overall, ranging from 0.13 to 1.9 µg/m³, with the typical reading around 0.4 µg/m³; the example at Caucriauville records 0.2 µg/m³. Particulate matter shows limited variation: PM₁₀ values sit between 7.0 and 12.8 µg/m³, median 12.15 µg/m³, while PM₂.₅ ranges from 3.4 to 11.6 µg/m³ with a median of 7.5 µg/m³. Ozone is reported as a single recent value of 40.9 µg/m³ at the ville‑haute site. CO appears only once, fixed at 482.0 µg/m³ from Lafaurie‑montant, and NO’s most recent figure is 17.4 µg/m³ at the same location.

Overall, the dataset offers a fairly comprehensive snapshot for most pollutants but is uneven in temporal coverage: five of the seven substances have measurements updated within the last three days, whereas CO and NO rely on data that are several years old. Consequently, while the spatial spread across stations provides some city‑wide perspective, conditions can differ by location and time, especially for the less frequently refreshed pollutants.

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 dataset for Le Havre includes nine valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 15:00 UTC; it is therefore considered “Updated within 3 days.” This snapshot reflects conditions captured at that time, but air quality can vary across different neighbourhoods and moments throughout the city.

OpenAQ station rows