@misc{beyn_changes_in_2014, author={Beyn, F., Matthias, V., Daehnke, K.}, title={Changes in atmospheric nitrate deposition in Germany – An isotopic perspective}, year={2014}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.envpol.2014.06.043}, abstract = {We investigated the isotopic composition of atmospheric NO3− deposition at a moderately polluted site in Western Europe over an annual cycle from December 2011 to November 2012. On average, we measured load-weighted δ15N values of +0.1 and +3.0‰ in wet and dry deposition, respectively. A comparison to source-specific N emission trends and to isotope data from the 1980s reveals distinct changes in δ15N–NO3− values: In contrast to the increasing relative importance of isotopically depleted natural NOx sources, we find an increase of isotope values in comparison to historical data. We explore the role of land-based N sources, because backward trajectories reveal a correlation of higher δ15N to air mass origin from industrialized areas. Nowadays isotopically enriched NOx of coal-fired power plants using selective catalytic converters and land-based vehicle emissions, which use same technology, are apparently the main driver of rising δ15N values in nitrate deposition.}, note = {Online available at: \url{https://doi.org/10.1016/j.envpol.2014.06.043} (DOI). Beyn, F.; Matthias, V.; Daehnke, K.: Changes in atmospheric nitrate deposition in Germany – An isotopic perspective. Environmental Pollution. 2014. vol. 194, 1-10. DOI: 10.1016/j.envpol.2014.06.043}}