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Rural concentration of the ozone indicator AOT40 for forest

Figure Created 18 Nov 2015 Published 27 Nov 2015 Last modified 26 Aug 2017
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The gradient of the accumulated ozone exposure values over a threshold of 40 parts per billion for forests (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.
https://www.eea.europa.eu/data-and-maps/figures/ozone-aot40-for-forest-3/map_2011_o3_aot40f/image_large

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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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  • 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

External Data Spec European air quality maps of PM and ozone for 2012 and their uncertainty The paper provides the annual update of the European air quality concentration 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, SOMO36), and vegetation related indicators (AOT40 for crops and for forests), their exceedance probability and population, vegetation respectively, exposure estimates and exceedance for the year 2012, including its exceedance compared to the previous years 2005-2011.
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AirBase - The European air quality database AirBase is the European air quality database maintained by the EEA through its European topic centre on Air pollution and Climate Change mitigation. It contains air quality monitoring data and information submitted by participating countries throughout Europe. The air quality database consists of a multi-annual time series of air quality measurement data and statistics for a number of air pollutants. It also contains meta-information on those monitoring networks involved, their stations and their measurements. The database covers geographically all EU Member States, the EEA member countries and some EEA collaborating countries. The EU Member States are bound under Decision 97/101/EC to engage in a reciprocal exchange of information (EoI) on ambient air quality. The EEA engages with its member and collaborating countries to collect the information foreseen by the EoI Decision because air pollution is a pan European issue and the EEA is the European body which produces assessments of air quality, covering the whole geographical area of Europe.
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/ozone-aot40-for-forest-3 or scan the QR code.

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Filed under: ozone, aot40, air quality, forests, air
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