Rural concentration of the ozone indicator AOT40 for forest

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

Go to latest version
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.


Additional information


(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


Geographic coverage

Temporal coverage

Document Actions