globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2018.02.045
Scopus记录号: 2-s2.0-85042864029
论文题名:
High-resolution satellite remote sensing of provincial PM2.5 trends in China from 2001 to 2015
作者: Lin C; Q; , Liu G; , Lau A; K; H; , Li Y; , Li C; C; , Fung J; C; H; , Lao X; Q
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 180
起始页码: 110
结束页码: 116
语种: 英语
英文关键词: High resolution ; Long-term trend ; PM2.5 ; Provincial scale ; Satellite remote sensing
Scopus关键词: Satellites ; High resolution ; Long-term trend ; PM2.5 ; Provincial scale ; Satellite remote sensing ; Remote sensing ; concentration (composition) ; data set ; long-term change ; particulate matter ; remote sensing ; satellite altimetry ; spatial resolution ; spectral resolution ; trend analysis ; accuracy ; air quality ; Article ; China ; particulate matter ; priority journal ; remote sensing ; surface property ; urban area ; Beijing [China] ; China ; Hebei ; Shanghai ; Tianjin
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: Given the vast territory of China, the long-term PM2.5 trends may substantially differ among the provinces. In this study, we aim to assess the provincial PM2.5 trends in China during the past few Five-Year Plan (FYP) periods. The lack of long-term PM2.5 measurements, however, makes such assessment difficult. Satellite remote sensing of PM2.5 concentration is an important step toward filling this data gap. In this study, a PM2.5 data set was built over China at a resolution of 1 km from 2001 to 2015 using satellite remote sensing. Analyses show that the national average of PM2.5 concentration increased by 0.04 μg·m−3·yr−1 during the 10th FYP period (2001–2005) and started to decline by −0.65 μg·m−3·yr−1 and −2.33 μg·m−3·yr−1 during the 11th (2006–2010) and the 12th (2011–2015) FYP period, respectively. In addition, substantial differences in the PM2.5 trends were observed among the provinces. Provinces in the Beijing-Tianjin-Hebei (BTH) region had the largest reduction of PM2.5 concentrations during the 10th and 12th FYP period. The greatest reduction rate of PM2.5 concentration during the 10th and 12th FYP period was observed in Beijing (−3.68 μg·m−3·yr−1) and Tianjin (−6.62 μg·m−3·yr−1), respectively. In contrast, PM2.5 concentrations remained steady for provinces in eastern and southeastern China (e.g., Shanghai) during the 12th FYP period. In overall, great efforts are still required to effectively reduce the PM2.5 concentrations in future. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82930
Appears in Collections:气候变化事实与影响

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作者单位: Department of Civil and Environmental Engineering, The Hong Kong University of Science and TechnologyHong Kong, Hong Kong; Institute for the Environment, The Hong Kong University of Science and TechnologyHong Kong, Hong Kong; Shanghai Institute of Satellite Engineering, Shanghai, China; Division of Environment and Sustainability, The Hong Kong University of Science and TechnologyHong Kong, Hong Kong; Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, China; Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China; Department of Mathematics, The Hong Kong University of Science and TechnologyHong Kong, Hong Kong; Jockey Club School of Public Health and Primary Care, The Chinese University of Hong KongHong Kong, Hong Kong

Recommended Citation:
Lin C,Q,, Liu G,et al. High-resolution satellite remote sensing of provincial PM2.5 trends in China from 2001 to 2015[J]. Atmospheric Environment,2018-01-01,180
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