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Figure

Rural concentration of the ozone indicator AOT40 for forest

Figure Created 07 Aug 2017 Published 13 Oct 2017 Last modified 15 Aug 2018
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This is an old version, kept for reference only.

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The gradient of the accumulated ozone exposure values for forests, over a threshold of 40 parts per billion (AOT40f), is similar to that of the AOT40c (crops). AOT40f increases from northern Europe to reach the highest values in the countries around the Mediterranean.

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information.png Units:

(μg/m³).h

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EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
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European Environment Agency (EEA)
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Netherlands Environmental Assessment Agency (PBL)
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Map

Additional information

AOT40

(Accumulated dose of ozone Over a Threshold of 40 ppb)
AOT40 means the sum of the differences between hourly concentrations greater than 80 µg/m3 (= 40 parts per billion) and 80 µg/m3

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Based on data

Data Air Quality e-Reporting (AQ e-Reporting) European air quality information reported by EEA member countries, including all EU Member States, as well as EEA cooperating countries. The EEA’s air quality database consists of a multi-annual time series of air quality measurement data and calculated statistics for a number of air pollutants. It also contains meta-information on the monitoring networks involved, their stations and measurements.
External Data Spec European air quality maps of PM and ozone for 2013 and their uncertainty ETC/ACM The paper provides the annual update of the European air quality concentration maps, probabilities of exceeding relevant thresholds and population exposure estimates for human health related indicators of pollutants PM10 (annual average, 36th highest daily average), PM2.5 (annual average) and ozone (26th highest daily max. 8-hr running average, SOMO35), and vegetation related indicators (AOT40 for crops and for forests for the year 2013. The exposure estimates are compared to the results of previous years 2005-2011. The analysis is based on interpolation of annual statistics of the 2013 observational data reported by EEA Member countries in 2014 and stored in the Air Quality e-reporting database. The paper presents the mapping results and includes an uncertainty analysis of the interpolated maps. These maps, with their spatial exceedance and exposure estimates, are intended to be used for the assessment of European air quality by the EEA and its ETC/ACM, and for (interactive visual) public information purposes through the EEA website.
Data Interpolated air quality data Interpolated maps showing air quality in Europe. The dataset has been reorganised in order to improve data harmonization among years and to facilitate storage and processing of the interpolated maps for the EEA data services.

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For references, please go to https://www.eea.europa.eu/data-and-maps/figures/rural-concentration-of-the-ozone-1 or scan the QR code.

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