Carbonaceous aerosol in ambient air: Parallel measurements between water cyclone and carbon analyzer--颗粒学报PARTICUOLOGY

Bae, M.-S., Schwab, J. J., Park, D.-J., Shon, Z.-H., & Kim, K.-H. (2019). Carbonaceous aerosol in ambient air: Parallel measurements between water cyclone and carbon analyzer. Particuology, 44, 153-158. https://doi.org/10.1016/j.partic.2018.09.001

Carbonaceous aerosol in ambient air: Parallel measurements between water cyclone and carbon analyzer

Min-Suk Bae ^a *, James J. Schwab ^b, Da-Jeong Park ^{a c}, Zang-Ho Shon ^d, Ki-Hyun Kim ^e

a Department of Environmental Engineering, Mokpo National University, Muan, South Korea
b Atmospheric Sciences Research Center, University at Albany, State University of New York, 251 Fuller Road, Albany, NY, 12203, USA
c Environmental Analysis Center, Gwangju Institute of Science and Technology, Gwangju, South Korea
d Department of Environmental Engineering, Dong-Eui University, Busan, South Korea
e Department of Civil and Environmental Engineering, Hanyang University, Seoul, South Korea

10.1016/j.partic.2018.09.001

Volume 44, June 2019, Pages 153-158

Received 23 January 2017, Revised 18 September 2018, Accepted 20 September 2018, Available online 23 December 2018, Version of Record 30 April 2019.

E-mail: minsbae@hotmail.com

Highlights

• A water cyclone, developed to collect PM in a small liquid flow, was interfaced with a carbon analyzer.

• Total carbon results from a water cyclone and carbon analyzers were compared.

• Carbonaceous thermal distribution investigated carbon fractionation in total water organic and inorganic carbon.

Abstract

A water cyclone, developed to collect and preserve biological aerosols in a small liquid flow, was interfaced with a total organic carbon analyzer to measure the aerosol organic and inorganic carbon fractions. The total carbon was compared against parallel measurements of elemental carbon (EC) and organic carbon (OC) using a Sunset Real Time ECOC Analyzer between 12–29 January 2009. A National Institute for Occupational Safety and Health (NIOSH) like protocol for the measurements included four temperature steps ending at 840 °C for OC under a helium atmosphere followed by two temperature steps ramped to 850 °C for EC in a helium–oxygen atmosphere. Carbon data comparison between the water cyclone-TOC and the TOC measured by the analyzer indicated good agreement (r² = 0.82, linear regression slope = 0.98, p < 0.001). Analyses of the relationship between total water organic carbon and OC, investigated using data sets from case studies spanning two different events, suggested it was possible to distinguish between the primary and secondary sources.

Graphical abstract

Keywords

Water soluble organic carbon; Total organic carbon; Carbonaceous material

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