Extended Data Fig. 2: O3 associated mortality according to O3 emission sources in 35 European countries, 2015–2017.
From: Geographic sources of ozone air pollution and mortality burden in Europe

Only days with average mean 8-hour maximum O3 above 70 µg/m3 were considered in this analysis. The horizontal bars represent the 95% empirical CI of the overall O3 attributable mortality (ie, the sum of the five contribution sources).