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You are here: Home / Data and maps / Maps and graphs / Annual variation in the ozone AOT40 value for crops (May-July) in (μg/m³).h, 1996-2009

Annual variation in the ozone AOT40 value for crops (May-July) in (μg/m³).h, 1996-2009

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Average values over all rural stations which reported data over at least eleven years in the period 1996-2009. The black line corresponds to the 5-year averaged value. Variations over Europe in observed values is large, eighty percent of the observations falls with the red shaded area.

European data

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Additional information

  • 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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European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100