Liu, Yafei Characterization and sources of volatile organic compounds (VOCs) and their related changes during ozone pollution days in 2016 in Beijing, China. [electronic resource] - Environmental pollution (Barking, Essex : 1987) Feb 2020 - 113599 p. digital Publication Type: Journal Article ISSN: 1873-6424 Standard No.: 10.1016/j.envpol.2019.113599 doi Subjects--Topical Terms: Air Pollutants--analysisBeijingEnvironmental MonitoringOzone--analysisVehicle Emissions--analysisVolatile Organic Compounds--analysis