DOI: 10.1016/j.atmosenv.2018.03.045
Scopus记录号: 2-s2.0-85045190579
论文题名: PM2.5 and gaseous pollutants in New York State during 2005–2016: Spatial variability, temporal trends, and economic influences
作者: Squizzato S ; , Masiol M ; , Rich D ; Q ; , Hopke P ; K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
语种: 英语
英文关键词: Air pollution
; Economics
; Policy
; Spatial variability
; Trends
Scopus关键词: Air pollution
; Air quality
; Economics
; Electric power generation
; Fog
; Natural gas
; Nitrogen oxides
; Ozone
; Public policy
; Ambient concentrations
; Electricity generation
; Homogeneous concentration
; Natural gas consumption
; Ozone concentration
; Peak concentrations
; Spatial variability
; Trends
; Urban growth
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: Over the past decades, mitigation strategies have been adopted both by federal and state agencies in the United States (US) to improve air quality. Between 2007 and 2009, the US faced a financial/economic crisis that lowered activity and reduced emissions. At the same time, changes in the prices of coal and natural gas drove a shift in fuels used for electricity generation. Seasonal patterns, diel cycles, spatial gradients, and trends in PM2.5 and gaseous pollutants concentrations (NOx, SO2, CO and O3) monitored in New York State (NYS) from 2005 to 2016 were examined. Relationships between ambient concentrations, changes in NYS emissions retrieved from the US EPA trends inventory, and economic indicators were studied. PM2.5 and primary gaseous pollutants concentrations decreased across NYS. By 2016, PM2.5 and SO2 attained relatively homogeneous concentrations across the state. PM2.5 concentrations decreased significantly at all sites. Similarly, SO2 concentrations declined at all sites within this period, with the highest slopes observed at the urban sites. Reductions in NOx emissions likely contributed to summertime average ozone reductions. NOx and VOCs controls reduced O3 peak concentrations as seen in significant relationships between the annual O3 4th-highest daily maximum 8-h concentrations and estimated NOx emissions at rural and suburban sites (r2 ∼ 0.7). Spring maxima were not reduced with most sites showing insignificant slopes or significant positive slopes (e.g., +2.6% y−1 and +2% y−1, at CCNY and PFI, respectively). Increases in autumn and winter ozone concentrations were found (e,g., 6.6 ± 0.4% y−1 on average in New York City). Significant relationships were observed between PM2.5, primary pollutants, and economic indicators. Overall, a decrease in electricity generation with coal, and the simultaneous increase in natural gas consumption for power generation, led to a decrease in PM2.5 and gaseous pollutants concentrations. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83136
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States; Center for Air Resources Engineering and Science, Clarkson University, Potsdam, NY, United States
Recommended Citation:
Squizzato S,, Masiol M,, Rich D,et al. PM2.5 and gaseous pollutants in New York State during 2005–2016: Spatial variability, temporal trends, and economic influences[J]. Atmospheric Environment,2018-01-01