Simultaneous HTDMA and HR-ToF-AMS measurements at the HKUST supersite in Hong Kong in 2011

Ming Chee Yeung, Berto P. Lee, Yong Jie Li, Chak K. Chan

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

This paper presents the results of simultaneous aerosol hygroscopicity and composition measurements using a Humidified Tandem Differential Mobility Analyzer (HTDMA) and an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) at the HKUST Supersite, located at a coastal suburban site in Hong Kong. Growth factors (GFs) at 90% relative humidity and the size-resolved composition of ambient aerosols at dry electricalmobility diameters of 75, 100, 150, and 200 nmwere measured in May, September, and November 2011. Bimodal GF distributions with a dominant more hygroscopic (MH) mode and a small fraction of the nonhygroscopic or less hygroscopic mode (number fraction
Original languageEnglish (US)
Pages (from-to)9864-9883
Number of pages20
JournalJournal of Geophysical Research
Volume119
Issue number16
DOIs
StatePublished - Aug 27 2014
Externally publishedYes

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