Figure

Ozone - Target value for the protection of vegetation

Figure Created 22 Aug 2014 Published 22 Aug 2014 Last modified 04 Sep 2014

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In the air quality directive (2008/EC/50), the EU has set a target value and a long term objective value for ozone (O3) for the protection of vegetation. Target value: the AOT40 may not exceed 18000 (µg/m3) per hour in the period from 1 May to 31 July averaged over five years. Long term objective value: the AOT40 may not exceed 6000 (µg/m3) per hour in the period from 1 May to 31 July within a calendar year. AOT40 (expressed in (μg/m3) ∙ hours) means the sum of the difference between hourly concentrations greater than 80 μg/m3 (= 40 parts per billion) and 80 μg/m3 over a given period using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. More information is provided in Annex VII of directive (2008/EC/50).

https://www.eea.europa.eu/data-and-maps/figures/ozone-target-value-for-the-protection-of-vegetation-6/eu12o3_vegetation/image_large

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Rights:: 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).
Owners:: European Environment Agency (EEA)
Figure type:: Map

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Older versions

28 Mar 2014 - Ozone - Target value for the protection of vegetation

10 Dec 2012 - Ozone - Target value for the protection of vegetation

23 Sep 2011 - Ozone - Target value for the protection of vegetation

06 Oct 2010 - Ozone - Target value for the protection of vegetation

30 Mar 2010 - Ozone - Target value for the protection of vegetation

12 Nov 2009 - Ozone 2007. Target value for the protection of vegetation

12 Nov 2009 - Ozone 2006. 1 hour target value for the protection of vegetation

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