%0 Journal Article %J Atmospheric Research %D 2016 %T Regional and hemispheric influences on measured spring peroxyacetyl nitrate (PAN) mixing ratios at the Auchencorth UK EMEP supersite %B Atmospheric Research %V 174-175 %P 135-141 %G eng %U http://dx.doi.org/10.1016/j.atmosres.2016.02.013