气候变化领域集成服务门户(CCPortal): Distinguishing in-cloud and below-cloud short and distal N-sources from high-temporal resolution seasonal nitrate and ammonium deposition in Vienna, Austria

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DOI	10.1016/j.atmosenv.2021.118740
	Distinguishing in-cloud and below-cloud short and distal N-sources from high-temporal resolution seasonal nitrate and ammonium deposition in Vienna, Austria
	Monteiro L.R.; Terzer-Wassmuth S.; Matiatos I.; Douence C.; Wassenaar L.I.
发表日期	2021
ISSN	1352-2310
卷号	266
英文摘要	Reactive nitrogen (Nr: nitrate and ammonium) washout in Vienna (Austria) precipitation events were investigated in 2019. A total of 958 samples from 61 rain events representing >90% of annual precipitation were collected at 5–30 min intervals for nitrate (NO3−) and ammonium (NH4+) analyses and meteorological information. The data revealed systematic seasonal concentration variations for all Nr-species and a clear influence of rush-hour traffic on the kinetics of N-scavenging processes. The monthly nitrate and ammonium deposition was 0.69 ± 0.21 kg ha−1 month−1 and 1.02 ± 0.30 kg ha−1 month−1, respectively. Around 30% of nitrate and 20% of ammonium was dry deposition, and ∼30% of each N-species was from distal sources associated with rainout processes. The half-life of below-cloud N-species were similar in the warmer seasons (1.7 ± 0.2 h and 2.3 ± 0.4 h for nitrate and ammonium). In winter, the ammonium half-life was significantly lower (1.4 h). Nr removal by wet-only in-cloud scavenging was slower than predicted by empirical models. HYSPLIT trajectory analysis revealed that Nr rainout from distal sources in spring had no prevailing direction, but higher Nr contributions were from N and W. In summer and winter, air masses from W, SW and SE were related to intense, medium, and low Nr contributions, respectively. The origin and path of these trajectories coincided with known NOx hotspots in Europe. © 2021 The Authors
关键词	High-resolution sampling Nitrogen pollution Rainout Scavenging ratio Washout
语种	英语
scopus关键词	Deposition; Rain; Austria; Below-cloud; Half lives; High resolution sampling; High temporal resolution; N species; Nitrogen pollution; Rain-out; Scavenging ratios; Washout; Nitrates; ammonia; fossil fuel; nitrate; nitrogen; rain; ammonium compound; cloud cover; nitrate; precipitation (chemistry); precipitation (climatology); scavenging (chemistry); seasonal variation; air pollutant; air pollution; air temperature; Article; Austria; autumn; chemical composition; climate; cloud; controlled study; dry deposition; exhaust gas; highway; municipal wastewater; particulate matter; pollution transport; precipitation; remote sensing; season; solar radiation; spring; summer; traffic; volatilization; waste water treatment plant; water content; wet deposition; wind speed; winter; Austria; Vienna
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248201
作者单位	Isotope Hydrology Section, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna International CentreVienna A-1400, Austria
推荐引用方式 GB/T 7714	Monteiro L.R.,Terzer-Wassmuth S.,Matiatos I.,et al. Distinguishing in-cloud and below-cloud short and distal N-sources from high-temporal resolution seasonal nitrate and ammonium deposition in Vienna, Austria[J],2021,266.
APA	Monteiro L.R.,Terzer-Wassmuth S.,Matiatos I.,Douence C.,&Wassenaar L.I..(2021).Distinguishing in-cloud and below-cloud short and distal N-sources from high-temporal resolution seasonal nitrate and ammonium deposition in Vienna, Austria.ATMOSPHERIC ENVIRONMENT,266.
MLA	Monteiro L.R.,et al."Distinguishing in-cloud and below-cloud short and distal N-sources from high-temporal resolution seasonal nitrate and ammonium deposition in Vienna, Austria".ATMOSPHERIC ENVIRONMENT 266(2021).