Rural concentration of the ozone indicator AOT40 for forest

Figure Created 18 Nov 2015 Published 27 Nov 2015 Last modified 19 Aug 2016, 03:04 PM
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.


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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