Source identification of water-soluble organic aerosols at a roadway site using a positive matrix factorization analysis

Park, Seungshik; Cho, Sung Yong; Bae, Min‐Suk

doi:10.1016/j.scitotenv.2015.07.004

Cited by 45 publications

(39 citation statements)

References 64 publications

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“…Yulong, which were recorded by automatic weather stations installed in the glacier areas (at an elevation of 4800 m asl). The flux of WSOC in Baishui glacier was 0.99 gC m À2 yr À1 , comparable to the result (0.11 ± 0.49 gC m À2 yr À1 ) proposed in Li et al (2016a) for six glaciers in the TP, but lower than the fluxes of typical polluted areas in North and South Korea (1.9 gC m À2 yr À1 ) (Yan and Kim, 2012;Park et al, 2015). Similar method was used to determine the flux of IPC in Baishui glacier, and the flux of IPC was 4.77 gC m À2 yr À1 , indicating a large fraction of IPC, as well as WSOC have contributed to dynamic carbon cycle in glaciers.…”

Section: Carbonaceous Compound Flux and Glacial Retreatsupporting

confidence: 81%

Distributions and light absorption property of water soluble organic carbon in a typical temperate glacier, southeastern Tibetan Plateau

Niu

Kang

et al. 2018

Tellus B: Chemical and Physical Meteorology

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Section: Carbonaceous Compound Flux and Glacial Retreatsupporting

confidence: 81%

Distributions and light absorption property of water soluble organic carbon in a typical temperate glacier, southeastern Tibetan Plateau

Niu

Kang

et al. 2018

Tellus B: Chemical and Physical Meteorology

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“…K + generally originates from biomass burning with lesser contributions from coal burning and dust. However, biomass burning is regarded as the most important source for K + and it is often used as an indicator of biomass burning (Kuang et al, 2015;Zhang et al, 2013;Park et al, 2015;Pio et al, 2008;Wang et al, , 2012Cheng et al, 2013). In northern China, biomass burning including residential cooking, heating, and open biomass burning occurred in all seasons Zheng et al, 2015).…”

Section: Possible Primary Sources Of Hulismentioning

confidence: 99%

Quantifying primary and secondary humic-like substances in urban aerosol based on emission source characterization and a source-oriented air quality model

Han

Hopke

et al. 2019

Atmos. Chem. Phys.

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Abstract. Humic-like substances (HULIS) are a mixture of high-molecular-weight, water-soluble organic compounds that are widely distributed in atmospheric aerosol. Their sources are rarely studied quantitatively. Biomass burning is generally accepted as a major primary source of ambient humic-like substances (HULIS) with additional secondary material formed in the atmosphere. However, the present study provides direct evidence that residential coal burning is also a significant source of ambient HULIS, especially in the heating season in northern China based on source measurements, ambient sampling and analysis, and apportionment with source-oriented CMAQ modeling. Emission tests show that residential coal combustion produces 5 % to 24 % of the emitted organic carbon (OC) as HULIS carbon (HULISc). Estimation of primary emissions of HULIS in Beijing indicated that residential biofuel and coal burning contribute about 70 % and 25 % of annual primary HULIS, respectively. Vehicle exhaust, industry, and power plant contributions are negligible. The average concentration of ambient HULIS in PM2.5 was 7.5 µg m−3 in urban Beijing and HULIS exhibited obvious seasonal variations with the highest concentrations in winter. HULISc accounts for 7.2 % of PM2.5 mass, 24.5 % of OC, and 59.5 % of water-soluble organic carbon. HULIS are found to correlate well with K+, Cl−, sulfate, and secondary organic aerosol, suggesting its sources include biomass burning, coal combustion, and secondary aerosol formation. Source apportionment based on CMAQ modeling shows residential biofuel and coal burning and secondary formation are important sources of ambient HULIS, contributing 47.1 %, 15.1 %, and 38.9 %, respectively.

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“…Although a number of studies have focused on chemical characteristics and sources of WSOC (Cheng et al, 2012;Huang et al, 2006;Miyazaki et al, 2007;Park et al, 2015), studies about the artifacts of WSOC during sampling, thermal characteristics of WSOC and its application to source appointment were limited. In our study, we developed a method to obtain the temperature-resolved carbon fractions of WSOC.…”

Section: Introductionmentioning

confidence: 99%

Water-soluble organic carbon (WSOC) and its temperature-resolved carbon fractions in atmospheric aerosols in Beijing

Tang

Zhang

Wang

et al. 2016

Atmospheric Research

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Source identification of water-soluble organic aerosols at a roadway site using a positive matrix factorization analysis

Cited by 45 publications

References 64 publications

Distributions and light absorption property of water soluble organic carbon in a typical temperate glacier, southeastern Tibetan Plateau

Distributions and light absorption property of water soluble organic carbon in a typical temperate glacier, southeastern Tibetan Plateau

Quantifying primary and secondary humic-like substances in urban aerosol based on emission source characterization and a source-oriented air quality model

Water-soluble organic carbon (WSOC) and its temperature-resolved carbon fractions in atmospheric aerosols in Beijing

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