Therefore, the trends in the model and the measurements show both a decreasing trend from 2007 to 2013 and a similar change from 2017 to 2018.
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A modelling study of OH, NO<sub>3</sub> and H<sub>2</sub>SO<sub>4</sub> in 2007-2018 at SMEAR II, Finland: analysis of long-term trends.
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The sentences
The 12-year concentrations of these five measured trace gases all show a negative trend reflecting the decreased anthropogenic impact on these gases in Europe during the last few decades. 92 This trend in Europe was also confirmed by the latest EAA report (No 12/2018).