DOI: 10.1002/2014GL059962
论文题名: Importance of tropospheric ClNO2 chemistry across the Northern Hemisphere
作者: Sarwar G. ; Simon H. ; Xing J. ; Mathur R.
刊名: Geophysical Research Letters
ISSN: 0094-10595
EISSN: 1944-10326
出版年: 2014
卷: 41, 期: 11 起始页码: 4050
结束页码: 4058
语种: 英语
英文关键词: hydroxyl radical
; nitric acid
; nitryl chloride
; ozone
; sulfate
; total nitrate
Scopus关键词: Air quality
; Nitrates
; Nitric acid
; Ozone
; Community multi-scale air quality models
; Dinitrogen pentoxide
; Heterogeneous chemistry
; Hydroxyl radicals
; Laboratory and field experiments
; nitryl chloride
; Northern Hemispheres
; sulfate
; Chlorine compounds
; aerosol
; air quality
; atmospheric modeling
; chemical composition
; concentration (composition)
; heterogeneity
; Northern Hemisphere
; ozone
; pollution monitoring
; troposphere
; China
; Europe
英文摘要: Laboratory and field experiments have revealed that uptake of dinitrogen pentoxide (N2O5) on aerosols containing chloride produces nitryl chloride (ClNO2) and nitric acid. We incorporate heterogeneous ClNO2 formation into the hemispheric Community Multiscale Air Quality model. This heterogeneous chemistry substantially enhances ClNO 2 levels in several areas of the Northern Hemisphere and alters the composition of airborne reactive nitrogen, comprising more than 15% of monthly mean values in some areas. Model results suggest that this heterogeneous chemistry reduces monthly mean total nitrate by up to 25% and enhances monthly mean daily maximum 8 h ozone by up to 7.0 ppbv. The pathway also enhances hydroxyl radical by more than 20% in some locations which in turn increases sulfate and other secondary pollutants. The largest ClNO2 concentrations and impacts occur over China and Western Europe, two areas in which few relevant field measurements have been made. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901733011&doi=10.1002%2f2014GL059962&partnerID=40&md5=f022509b3d98af78cfa9fdd6a115a223
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7859
Appears in Collections: 气候减缓与适应
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作者单位: National Exposure Research Laboratory, U.S. Environmental Protection Agency, RTP, NC, United States
Recommended Citation:
Sarwar G.,Simon H.,Xing J.,et al. Importance of tropospheric ClNO2 chemistry across the Northern Hemisphere[J]. Geophysical Research Letters,2014-01-01,41(11).