DOI: 10.1016/j.atmosenv.2014.03.029
Scopus记录号: 2-s2.0-84901002061
论文题名: Temporal variations of O3 and NOx in the urban background atmosphere of the coastal city Jeddah, Saudi Arabia
作者: Alghamdi M ; A ; , Khoder M ; , Harrison R ; M ; , Hyvärinen A ; -P ; , Hussein T ; , Al-Jeelani H ; , Abdelmaksoud A ; S ; , Goknil M ; H ; , Shabbaj I ; I ; , Almehmadi F ; M ; , Lihavainen H ; , Hämeri K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 205
结束页码: 214
语种: 英语
英文关键词: Meteorological parameters
; Oxides of nitrogen
; Ozone
; Saudi Arabia
; Total oxidant
; Weekend effect
Scopus关键词: Nitrogen oxides
; Oxidants
; Average concentration
; Background concentration
; Jeddah , Saudi Arabia
; Meteorological parameters
; Meteorological variables
; Oxides of nitrogen
; Saudi Arabia
; Weekend effects
; Ozone
; nitrogen oxide
; ozone
; atmospheric pollution
; crop yield
; health risk
; nitrogen dioxide
; nitrous oxide
; oxidant
; ozone
; phytotoxicity
; public health
; temporal variation
; air pollutant
; article
; atmosphere
; autumn
; circadian rhythm
; concentration (parameters)
; correlation analysis
; high temperature
; human
; humidity
; meteorology
; motor vehicle
; Northern Hemisphere
; priority journal
; Saudi Arabia
; seashore
; seasonal variation
; shopping
; solar radiation
; summer
; travel
; urban area
; winter
; Jeddah
; Makkah [Saudi Arabia]
; Saudi Arabia
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: Ozone is a pollutant of major concern because of its well recognized effects upon human health and crop yields. This study analyses in depth a new dataset for ozone from Jeddah, a coastal city in Saudi Arabia within the Middle Eastern region, for which very few ozone data are currently available, collected between March 2012 and February 2013. The measurements presented include NO, NO2 and ozone as well as relevant meteorological variables. The data show a marked seasonal variation in ozone with highest concentrations in the summer months and lowest average concentrations in the winter. Concentrations also show a substantial difference between weekdays and weekends, with higher NO and NO2 on weekdays, but lower concentrations of ozone. Plots of total oxidant versus NOx concentration indicate background concentrations of ozone (at zero NOx) ranging from 38.2ppb in January to 59ppb in May consistent with the northern hemisphere spring maximum in ozone concentrations. The slope of total oxidant/NOx varies from 0.13 in March to 0.68 in August. The two summer months of July and August are anomalous with slopes of around double that of other months, suggesting a higher efficiency of ozone production at lower primary pollutant concentrations arising from much reduced daytime traffic. A substantial weekend/weekday difference in ozone which is higher at weekends appears to be attributable to lower daytime traffic activity and hence reduced emissions of NOx to a "NOx-saturated" atmosphere. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80981
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia; Division of Environmental Health and oRisk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Finnish Meteorological Institute, Erik Palménin aukio 1, P.O. Box 503, FI-00101 Helsinki, Finland; Department of Physics, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland; Department of Physics, The University of Jordan, Amman 11942, Jordan
Recommended Citation:
Alghamdi M,A,, Khoder M,et al. Temporal variations of O3 and NOx in the urban background atmosphere of the coastal city Jeddah, Saudi Arabia[J]. Atmospheric Environment,2014-01-01,94