DOI: 10.1016/j.atmosenv.2015.08.007
Scopus记录号: 2-s2.0-84940020749
论文题名: Meteorological detrending of primary and secondary pollutant concentrations: Method application and evaluation using long-term (2000-2012) data in Atlanta
作者: Henneman L ; R ; F ; , Holmes H ; A ; , Mulholland J ; A ; , Russell A ; G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 119 起始页码: 201
结束页码: 210
语种: 英语
英文关键词: Accountability
; Air pollution trends
; KZ filtering
; Meteorological detrending
Scopus关键词: Balloons
; Ozone
; Pollution
; Reduction
; White noise
; Accountability
; Air pollutant concentrations
; Annual average concentration
; Detrending
; Kolmogorov-Zurbenko filter
; Ozone concentration
; Pollutant concentration
; Pollution regulation
; Air pollution
; carbon
; carbon monoxide
; organic carbon
; ozone
; accountability
; atmospheric pollution
; climate effect
; concentration (composition)
; emission control
; environmental modeling
; filter
; long-term change
; meteorology
; metropolitan area
; ozone
; pollutant property
; regression analysis
; seasonal variation
; trend analysis
; white noise
; air pollution
; air quality
; Article
; concentration (parameters)
; exhaust gas
; linear regression analysis
; meteorology
; particulate matter
; priority journal
; quantitative analysis
; seasonal variation
; summer
; United States
; white noise
; Atlanta
; Georgia
; United States
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: The effectiveness of air pollution regulations and controls are evaluated based on measured air pollutant concentrations. Air pollution levels, however, are highly sensitive to both emissions and meteorological fluctuations. Therefore, an assessment of the change in air pollutant levels due to emissions controls must account for these meteorological fluctuations. Two empirical methods to quantify the impact of meteorology on pollutant levels are discussed and applied to the 13-year time period between 2000 and 2012 in Atlanta, GA. The methods employ Kolmogorov-Zurbenko filters and linear regressions to detrended pollutant signals into long-term, seasonal, weekly, short-term, and white-noise components. The methods differ in how changes in weekly and holiday emissions are accounted for. Both can provide meteorological adjustments on a daily basis for future use in acute health analyses.The meteorological impact on daily signals of ozone, NOx, CO, SO2, PM2.5, and PM species are quantified. Analyses show that the substantial decreases in seasonal averages of NOx and SO2 correspond with controls implemented in the metropolitan Atlanta area. Detrending allows for the impacts of some controls to be observed with averaging times of as little as 3 months. Annual average concentrations of NOx, SO2, and CO have all fallen by at least 50% since 2000. Reductions in NOx levels, however, do not lead to uniform reductions in ozone. While average detrended summer average maximum daily average 8 h ozone (MDA8h O3) levels fell by 4% (2.2 ± 2 ppb) between 2000 and 2012, winter averages have increased by 12% (3.8 ± 1.4 ppb), providing further evidence that high ozone levels are NOx-limited and lower ozone concentrations are NOx-inhibited. High ozone days (with MDA8h O3 greater than 60 ppb) decreased both in number and in magnitude over the study period. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81519
Appears in Collections: 气候变化事实与影响
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作者单位: Georgia Institute of Technology, Atlanta, GA, United States; Atmospheric Sciences Program, Department of Physics, University of Nevada, Reno, United States
Recommended Citation:
Henneman L,R,F,et al. Meteorological detrending of primary and secondary pollutant concentrations: Method application and evaluation using long-term (2000-2012) data in Atlanta[J]. Atmospheric Environment,2015-01-01,119