Articles | Volume 15, issue 4
https://doi.org/10.5194/acp-15-1995-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-1995-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Sources of humic-like substances in the Pearl River Delta, China: positive matrix factorization analysis of PM2.5 major components and source markers
B. Y. Kuang
Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
now at: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington, 99532, USA
Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
X. H. H. Huang
Institute of Environment, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
Institute of Environment, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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- Source apportionment of carbonaceous aerosols using hourly data and implications for reducing PM2.5 in the Pearl River Delta region of South China J. Huang et al. 10.1016/j.envres.2022.112960
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- Improvements in source apportionment of multiple time-resolved PM2.5 inorganic and organic speciation measurements using constrained Positive Matrix Factorization C. Huang et al. 10.1007/s11356-024-35476-z
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- Effect of metal-organic interactions on the oxidative potential of mixtures of atmospheric humic-like substances and copper/manganese as investigated by the dithiothreitol assay M. Lin & J. Yu 10.1016/j.scitotenv.2019.134012
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- Key role of pH in the photochemical conversion of NO2 to HONO on humic acid C. Han et al. 10.1016/j.atmosenv.2016.07.053
- A long-term analysis of atmospheric black carbon MERRA-2 concentration over China during 1980–2019 S. Cao et al. 10.1016/j.atmosenv.2021.118662
- Sources of humic-like substances (HULIS) in PM2.5 in Beijing: Receptor modeling approach X. Li et al. 10.1016/j.scitotenv.2019.03.333
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- Measurement report: The 10-year trend of PM2.5 major components and source tracers from 2008 to 2017 in an urban site of Hong Kong, China W. Chow et al. 10.5194/acp-22-11557-2022
- Quantification of nitroaromatic compounds in atmospheric fine particulate matter in Hong Kong over 3 years: field measurement evidence for secondary formation derived from biomass burning emissions K. Chow et al. 10.1071/EN15174
- A one-year, on-line, multi-site observational study on water-soluble inorganic ions in PM 2.5 over the Pearl River Delta region, China J. Liu et al. 10.1016/j.scitotenv.2017.06.039
- Seasonal changes in water-soluble brown carbon (BrC) at Nanling background station in South China B. Zhang et al. 10.3389/fenvs.2024.1360453
- Potential source and health risks of black carbon based on MERRA-2 reanalysis data in a typical industrial city of North China Plain H. Yu et al. 10.1016/j.jenvman.2024.120367
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Latest update: 21 Nov 2024
Short summary
Humic-like substances (HULIS), the hydrophobic part of water soluble organic material, account for ~10% of PM2.5 mass in the Pearl River Delta, China. Source analysis using PM2.5 chemical composition data revealed that secondary formation process, biomass burning, and residual oil combustion from shipping as significant sources of HULIS. Vehicle emissions contributed little to HULIS. Primary sources of HULIS appeared to be linked to inefficient combustion.
Humic-like substances (HULIS), the hydrophobic part of water soluble organic material, account...
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