Data Changelog
According to this portal's Publishing Organization, this page was last reviewed in August 2026 against our methodology. Figures and extracts on this site, including tables above 1,000 rows when the corpus is that large, are the publisher's responsibility.
Download the EU-27 AEI extract cited on this page: eea-aei-statistics.csv (CC BY 4.0). Also on Statistics.
This log lists material corrections and surface changes PlainAirQuality applied after publication. Each entry is past-tense and tied to a repository commit; we do not invent rows to pad the list. Data vintage currently reads 2026-09-01.
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· Data integrity · b666a39
Replaced hand-typed EU/EEA country PM2.5 means with the EEA Air Quality Status Report 2025 Table 3 Average Exposure Indicator (AEI) 2023 values, stopped asserting EEA provenance for still-unverified PM10/NO2/O3/SO2 country composites, and declared the AEI + Burden of Disease sources in scripts/etl.mjs SOURCES.
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· Data integrity · 2ddfca9
Stopped publishing undisclosed synthetic peak/exceedance columns on station pages that were constant multiples of the modeled annual mean; kept the disclosed classification-adjusted annual-mean model and moved that disclosure to the point of reading.
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· Index-surface · 1775844
Replaced portal-wide sitemap lastmods with per-route page-vintage stamps so crawl dates reflect real page edits instead of one shared deploy-day stamp.
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· Data integrity · f3e852f
Replaced stale about/census cards with live SSR totals and labeled modeled station estimates honestly on-page.