DOI: 10.1016/j.atmosenv.2014.08.066
Scopus记录号: 2-s2.0-84907150999
论文题名: Influence of surface and subsidence thermal inversion on PM2.5 and black carbon concentration
作者: Gramsch E ; , Ca´ceres D ; , Oyola P ; , Reyes F ; , Va´squez Y ; , Rubio M ; A ; , Sa´nchez G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 290
结束页码: 298
语种: 英语
英文关键词: Black carbon
; PM2.5
; Thermal inversion
Scopus关键词: Black carbon
; Thermal inversion
; black carbon
; black carbon
; concentration (composition)
; particulate matter
; rural atmosphere
; subsidence
; temperature profile
; thermal alteration
; air pollution
; Article
; atmosphere
; Chile
; controlled study
; environmental temperature
; geographic distribution
; meteorology
; particulate matter
; rural area
; subsidence thermal inversion
; surface property
; surface thermal inversion
; temperature measurement
; Chile
; Metropolitana
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: A study of particulate matter and temperature in the atmosphere in several places in Chile has been carried out in three different years with the objective of determining a common pattern of the influence of thermal inversions on PM2.5 and black carbon. Temperature measurements were used to separate days with and without inversions. In all sites it was found that the days with thermal inversions had higher black carbon or PM2.5 than days without inversions. In the rural site, black carbon was 57% higher during inversion days. In the downtown Santiago site the PM2.5 was 35% higher during inversion days. At the western Santiago site it was possible to separate the days into three categories; only surface, surface and subsidence, and no thermal inversion. In days with both types of inversion, PM2.5 was 84% higher than days without any type of inversion. During days with only surface inversion, PM2.5 was higher only during the morning and the average PM2.5 was only 14% higher. Although during inversion days the concentrations were higher, it was not possible to find a significant correlation between the strength or intensity of the inversion with black carbon or PM2.5 in the sites without temperature measurements as function of height. However, when this data is available, a moderate correlation is found, indicating that the complete vertical temperature profile is needed in order to find a relationship between those variables. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80555
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Physics, University of Santiago, Avda. Ecuador 3493, Santiago, Chile; Mario Molina Center, Santiago, Chile; Faculty of Chemistry, University of Santiago, Santiago, Chile; Department of Mathematics, University of Santiago, Santiago, Chile
Recommended Citation:
Gramsch E,, Ca´ceres D,, Oyola P,et al. Influence of surface and subsidence thermal inversion on PM2.5 and black carbon concentration[J]. Atmospheric Environment,2014-01-01,98