Experimental Characterization of PM2.5 Organic Carbon by Using Carbon-fraction Profiles of Organic Materials
Open Access
- 30 June 2022
- journal article
- research article
- Published by Springer Science and Business Media LLC in Asian Journal of Atmospheric Environment
- Vol. 16 (2), 80-92
- https://doi.org/10.5572/ajae.2021.128
Abstract
Organic aerosols (OA) in the atmosphere have complex emission sources and formation processes that must be determined to understand the OA composition and behavior. The thermal optical method is generally used to analyze organic carbon (OC) in OAs, and the resulting thermally fractionated OC profiles can be considered to be a synthesis of the organic materials contained in OAs. In this study, carbon-fraction profiles of 43 organic materials were determined and categorized into five types on the basis of their profile patterns. Then a chemical mass balance (CMB) analysis using the five types and the measured carbon-fraction profiles of particulate OC from various emission sources was conducted. The major sources thus determined were generally reasonable considering the known chemical properties of emission source particles. In addition, the seasonal organic matter composition in ambient particulate OC measured at a suburban site of Tokyo was experimentally estimated by a CMB analysis using the five types, and the potential of making good use of thermally fractionated OC data to understand the characteristics of OAs was discussed.Keywords
Funding Information
- Steel Foundation for Environmental Protection Technology (14atmos-217)
This publication has 32 references indexed in Scilit:
- Chirality and the origin of atmospheric humic-like substancesAtmospheric Chemistry and Physics, 2010
- Toward a standardised thermal-optical protocol for measuring atmospheric organic and elemental carbon: the EUSAAR protocolAtmospheric Chemistry and Physics, 2010
- Determination of Dicarboxylic Acids and Levoglucosan in Fine Particles in the Kanto Plain, Japan, for Source Apportionment of Organic AerosolsAerosol and Air Quality Research, 2010
- Improving source identification of fine particles in a rural northeastern U.S. area utilizing temperature‐resolved carbon fractionsJournal of Geophysical Research: Atmospheres, 2004
- Water‐soluble organic compounds in biomass burning aerosols over Amazonia 2. Apportionment of the chemical composition and importance of the polyacidic fractionJournal of Geophysical Research: Atmospheres, 2002
- A new analytical approach for size‐resolved speciation of organic compounds in atmospheric aerosol particles: Methods and first resultsJournal of Geophysical Research: Atmospheres, 2000
- Elemental Carbon-Based Method for Monitoring Occupational Exposures to Particulate Diesel ExhaustAerosol Science and Technology, 1996
- Comparison of the composition of humic and fulvic acids prepared by the IHSS method and NAGOYA methodSoil Science and Plant Nutrition, 1994
- The dri thermal/optical reflectance carbon analysis system: description, evaluation and applications in U.S. Air quality studiesAtmospheric Environment. Part A. General Topics, 1993
- Characterization of a humic acid-like brown substance in airborne particulate matter and tentative identification of its originAtmospheric Environment (1967), 1986