Trends in the maximum daily 8-hour O3 concentrations (in μg/m3) (2002–2011) per station type
The graph is based on the 93.15 percentile of the maximum daily 8-hour O3 concentration trends; it presents the range of
concentration changes per year (in μg/m3) per station type. The trends are calculated based on the officially reported data by
the EU Member States with a minimum data coverage of 75 % of valid data per year for at least 8 years out of the 10 years
The diagram indicates the lowest and highest trends, the means and the lower and upper quartiles, per station type. The
lower quartile splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.
For references, please go to www.eea.europa.eu/soer or scan the QR code.
This briefing is part of the EEA's report The European Environment - State and Outlook 2015. The EEA is an official agency of the EU, tasked with providing information on Europe’s environment.
PDF generated on 31 Jan 2015, 07:25 AM