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Figure

Annual mean nickel concentrations in 2015

Figure Created 21 Sep 2017 Published 12 Oct 2017 Last modified 15 Aug 2018

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Observed concentrations of nickel in 2015. The map shows the Ni annual mean concentrations. The red and dark-red dots indicate stations with concentrations exceeding the target value (20 ng/m3). Only stations with more than 14 % of valid data have been included in the map.