IEECAS OpenIR  > 粉尘与环境研究室
Wintertime particulate pollution episodes in an urban valley of the Western US: a case study
Chen, LWA (Chen, L. -W. A.)[1,2]; Watson, JG (Watson, J. G.)[1,2]; Chow, JC (Chow, J. C.)[1,2]; Green, MC (Green, M. C.)[1]; Inouye, D (Inouye, D.)[3]; Dick, K (Dick, K.)[3]
2012-12-30
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
卷号12期号:21页码:10051-10064
文章类型期刊论文
摘要

This study investigates the causes of elevated PM2.5 episodes and potential exceedences of the US National Ambient Air Quality Standards (NAAQS) in Truckee Meadows, Nevada, an urban valley of the Western US, during winter 2009/2010, an unusually cold and snowy winter. Continuous PM2.5 mass and time-integrated chemical speciation data were acquired from a central valley monitoring site, along with meteorological measurements from nearby sites. All nine days with PM2.5 > 35 mu g m(-3) showed 24-h average temperature inversion of 1.5-4.5 degrees C and snow cover of 8-18 cm. Stagnant atmospheric conditions limited wind ventilation while highly reflective snow cover reduced daytime surface heating creating persistent inversion. Elevated ammonium nitrate (NH4NO3) and water associated with it are found to be main reasons for the PM2.5 exceedances. An effective-variance chemical mass balance (EV-CMB) receptor model using locally-derived geological profiles and inorganic/organic markers confirmed secondary NH4NO3 (27-37 %), residential wood combustion (RWC; 11-51 %), and diesel engine exhaust (7-22 %) as the dominant PM2.5 contributors. Paved road dust and de-icing materials were minor, but detectable contributors. RWC is a more important source than diesel for organic carbon (OC), but vice versa for elemental carbon (EC). A majority of secondary NH4NO3 is also attributed to RWC and diesel engines (including snow removal equipment) through oxides of nitrogen (NOx) emissions from these sources. Findings from this study may apply to similar situations experienced by other urban valleys.

DOI10.5194/acp-12-10051-2012
收录类别SCI
语种英语
引用统计
被引频次:52[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10137
专题粉尘与环境研究室
通讯作者Chen, LWA (Chen, L. -W. A.)[1,2]
作者单位1.Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an, China;
3.Washoe County District Health Department Air Quality Management Division, Reno, NV, USA
推荐引用方式
GB/T 7714
Chen, LWA ,Watson, JG ,Chow, JC ,et al. Wintertime particulate pollution episodes in an urban valley of the Western US: a case study[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2012,12(21):10051-10064.
APA Chen, LWA ,Watson, JG ,Chow, JC ,Green, MC ,Inouye, D ,&Dick, K .(2012).Wintertime particulate pollution episodes in an urban valley of the Western US: a case study.ATMOSPHERIC CHEMISTRY AND PHYSICS,12(21),10051-10064.
MLA Chen, LWA ,et al."Wintertime particulate pollution episodes in an urban valley of the Western US: a case study".ATMOSPHERIC CHEMISTRY AND PHYSICS 12.21(2012):10051-10064.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Wintertime particula(2679KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chen, LWA (Chen, L. -W. A.)[1,2]]的文章
[Watson, JG (Watson, J. G.)[1,2]]的文章
[Chow, JC (Chow, J. C.)[1,2]]的文章
百度学术
百度学术中相似的文章
[Chen, LWA (Chen, L. -W. A.)[1,2]]的文章
[Watson, JG (Watson, J. G.)[1,2]]的文章
[Chow, JC (Chow, J. C.)[1,2]]的文章
必应学术
必应学术中相似的文章
[Chen, LWA (Chen, L. -W. A.)[1,2]]的文章
[Watson, JG (Watson, J. G.)[1,2]]的文章
[Chow, JC (Chow, J. C.)[1,2]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。