Pan-European rural monitoring network shows dominance of NH 3 gas and NH 4 NO 3 aerosol in inorganic atmospheric pollution load

作者：Y. Sim Tang, Christophe R. Flechard, Ulrich Dämmgen, Sonja Vidič, Vesna Djuricic, Marta Mitošinková, Hilde Thelle Uggerud, María José Sanz, Ivan Simmons, U. Dragosits, Eiko Nemitz, Marsailidh M. Twigg, Netty van Dijk, Yannick Fauvel, F. Sanz, Martin Ferm, Cinzia Perrino, Maria Catrambone, David Leaver, Christine F. Braban, John Neil Cape, Mathew R. Heal, Mark A. Sutton · 发表于：Atmospheric chemistry and physics · 年份：2021 · DOI：10.5194/acp-21-875-2021 · 被引用次数：44 · 研究领域：Atmospheric chemistry and aerosols、Atmospheric and Environmental Gas Dynamics、Atmospheric Ozone and Climate

A comprehensive European dataset on monthly atmospheric NH 3 , acid gases (HNO 3 , SO 2 , HCl), and aerosols (NH4+, NO3-, SO42-, Cl − , Na + , Ca 2+ , Mg 2+ ) is presented and analysed. Speciated measurements were made with a low-volume denuder and filter pack method (DEnuder for Long-Term Atmospheric sampling, DELTA ® ) as part of the EU NitroEurope (NEU) integrated project. Altogether, there were 64 sites in 20 countries (2006–2010), coordinated between seven European laboratories. Bulk wet-deposition measurements were carried out at 16 co-located sites (2008–2010). Inter-comparisons of chemical analysis and DELTA ® measurements allowed an assessment of comparability between laboratories. The form and concentrations of the different gas and aerosol components measured varied between individual sites and grouped sites according to country, European regions, and four main ecosystem types (crops, grassland, forests, and semi-natural). The smallest concentrations (with the exception of SO42- and Na + ) were in northern Europe (Scandinavia), with broad elevations of all components across other regions. SO 2 concentrations were highest in central and eastern Europe, with larger SO 2 emissions, but particulate SO42- concentrations were more homogeneous between regions. Gas-phase NH 3 was the most abundant single measured component at the majority of sites, with the largest variability in concentrations across the network. The largest concentrations of NH 3 , NH4+, and NO3- were at...