Atmospheric chemistry
; Characterization
; Health risks
; Mass spectrometry
; Optical properties
; Pollution
; Atmospheric particulate matter
; Chemical characterization
; Chemical information
; Degree of neutralization
; Economic development
; Ion-chromatographic techniques
; Source apportionment
; Spatiotemporal variability
; Chemical analysis
; ammonium nitrate
; element
; inorganic compound
; ion
; atmospheric pollution
; chemical analysis
; economic development
; filter
; neutralization
; oxygenation
; particulate matter
; physicochemical property
; pollution monitoring
; real time
; source apportionment
; spatiotemporal analysis
; air pollution
; air sampling
; atmospheric transport
; chemical analysis
; China
; data analysis
; factor analysis
; ion chromatography
; light scattering
; mass spectrometry
; measurement
; optics
; oxygenation
; particle size
; particulate matter
; physical chemistry
; priority journal
; Review
; seasonal variation
; secondary organic aerosol
; spatial analysis
; spatiotemporal analysis
; China
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:
Atmospheric particulate matter (PM) pollution has become a major health threat accompanying the rapid economic development in China. For decades, filter-based offline chemical analyses have been the most widely adopted means to investigate PM and have provided much information for understanding this type of pollution in China. However, offline analyses have low time resolutions and the chemical information thus obtained fail to reflect the dynamic nature of the sources and the rapid processes leading to the severe PM pollution in China. In recent years, advances in real-time PM chemical characterization have created a new paradigm for PM studies in China. In this review, we summarize those advances, focusing on the most widely used mass spectrometric and ion chromatographic techniques. We describe the findings from those studies in terms of spatiotemporal variabilities, degree of neutralization and oxygenation, source apportionment, secondary formation, as well as collocated measurements of the chemical and physical (hygroscopic and optical) properties of PM. We also highlight the new insights gained from those findings and suggest future directions for further advancing our understanding of PM pollution in China via real-time chemical characterization. � 2017 Elsevier Ltd
Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Environmental Toxicology, University of California, Davis, CA, United States; Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou, China; School of Energy and Environment, City University of Hong Kong, Hong Kong
Recommended Citation:
Li Y,J,, Sun Y,et al. Real-time chemical characterization of atmospheric particulate matter in China: A review[J]. Atmospheric Environment,2017-01-01,158