Rural concentration map of the ozone indicator AOT40 for crops, year 2008

Figure expired Created 21 Sep 2011 Published 20 Aug 2012 Last modified 26 Aug 2017
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AOT40 for crops are vegatation exposure related indicators and are based on rural background station observation only.

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  • AOT40 (crops)

(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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