Air pollution due to ozone: health impacts and effects of climate change (no further updates)

• There was no discernible trend in European ozone concentrations between 2003 and 2012, in terms of the annual mean of the daily maximum eight hour average measured at any type of station.
• It is difficult to attribute observed ozone exceedences, or changes therein, to individual causes such as climate change.
• Future climate change is expected to increase ozone concentrations, but this increase should not exceed 5 µg/m3 by the middle of the century and would therefore likely be outweighed by reductions in ozone levels due to planned future emissions reductions.
• End of the century projections for the effects of climate change involve an increase of up to 8 µg/m3 in ozone concentrations

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