OMI satellite observations of decadal changes in ground-level sulfur dioxide over North America

被引：36
|
作者：
Kharol, Shailesh K. [1 ]
McLinden, Chris A. [1 ]
Sioris, Christopher E. [1 ]
Shephard, Mark W. [1 ]
Fioletov, Vitali [1 ]
van Donkelaar, Aaron [2 ]
Philip, Sajeev [2 ,4 ]
Martin, Randall V. [2 ,3 ]
机构：
[1] Environm & Climate Change Canada, Air Qual Res Div, Toronto, ON M3H 5T4, Canada
[2] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada
[3] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
[4] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
来源：
ATMOSPHERIC CHEMISTRY AND PHYSICS | 2017年 / 17卷 / 09期
基金：
加拿大自然科学与工程研究理事会;
关键词：
FINE PARTICULATE MATTER; CANADIAN OIL SANDS; AIR-QUALITY; SO2; MORTALITY; POLLUTION; MODEL; NO2; RETRIEVAL; ALGORITHM;
D O I：
10.5194/acp-17-5921-2017
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Sulfur dioxide (SO2) has a significant impact on the environment and human health. We estimated ground-level sulfur dioxide (SO2) concentrations from the Ozone Monitoring Instrument (OMI) using SO2 profiles from the Global Environmental Multi-scale - Modelling Air quality and CHemistry (GEM-MACH) model over North America for the period of 2005-2015. OMI-derived ground-level SO2 concentrations (r = 0.61) and trends (r = 0.74) correlated well with coincident in situ measurements from air quality networks over North America. We found a strong decreasing trend in coincidently sampled ground-level SO2 from OMI (-81 +/- 19 %) and in situ measurements (-86 +/- 13 %) over the eastern US for the period of 2005-2015, which reflects the implementation of stricter pollution control laws, including flue-gas desulfurization (FGD) devices in power plants. The spatially and temporally contiguous OMI-derived ground-level SO2 concentrations can be used to assess the impact of long-term exposure to SO2 on the health of humans and the environment.
引用
收藏
页码：5921 / 5929
页数：9
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