The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Spatial and seasonal distributions of carbonaceous aerosols over China
Open accessAbstract
Simultaneous measurements of atmospheric organic and elemental carbon (OC and EC) were taken during winter and summer seasons at 2003 in 14 cities in China. Daily PM 2.5 samples were analyzed for OC and EC by the Interagency Monitoring of Protected Visual Environments (IMPROVE) thermal/optical reflectance protocol. Average PM 2.5 OC concentrations in the 14 cities were 38.1 μ g m−3 and 13.8 μ g m−3 for winter and summer periods, and the corresponding EC were 9.9 μ g m−3 and 3.6 μ g m−3, respectively. OC and EC concentrations had summer minima and winter maxima in all the cities. Carbonaceous matter (CM), the sum of organic matter (OM = 1.6 × OC) and EC, contributed 44.2% to PM 2.5 in winter and 38.8% in summer. OC was correlated with EC (R2: 0.56–0.99) in winter, but correlation coefficients were lower in summer (R2: 0.003–0.90). Using OC/EC enrichment factors, the primary OC, secondary OC and EC accounted for 47.5%, 31.7% and 20.8%, respectively, of total carbon in Chinese urban environments. More than two thirds of China's urban carbon is derived from directly emitted particles. Average OC/EC ratios ranged from 2.0 to 4.7 among 14 cities during winter and from 2.1 to 5.9 during summer. OC/EC ratios in this study were consistent with a possible cooling effect of carbonaceous aerosols over China.
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Cites
China’s environment in a globalizing world
Liu, J., & Diamond, J. (2005) · Nature · doi:10.1038/4351179a · Cited by 1,643
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A review of biomass burning: Emissions and impacts on air quality, health and climate in China
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Chemical characterization and source apportionment of PM 2.5 in Beijing: seasonal perspective
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Self-citationFine particulate matter (PM2.5) in China at a city level
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Metadata
- Authors
- Cao, J. J., Lee, S. C., Chow, J. C., Watson, J. G., Ho, K. F., Zhang, R. J., Jin, Z. D., Shen, Z. X., Chen, G. C., Kang, Y. M., Zou, S. C., Zhang, L. Z., Qi, S. H., Dai, M. H., Cheng, Y., & Hu, K.
- Venue
- Journal of Geophysical Research: Atmospheres
- Publisher
- American Geophysical Union (AGU)
- Published
- 2007-11-10
- Volume
- 112
- Issue
- D22
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2150009788
- Cited by
- 1,007
- References
- 1
- FWCI
- 16.66
- Type
- journal article
- Language
- en
- Open access
- green
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- Cao, J. J., Lee, S. C., Chow, J. C., Watson, J. G., Ho, K. F., Zhang, R. J., Jin, Z. D., Shen, Z. X., Chen, G. C., Kang, Y. M., Zou, S. C., Zhang, L. Z., Qi, S. H., Dai, M. H., Cheng, Y., & Hu, K. (2007). Spatial and seasonal distributions of carbonaceous aerosols over China. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/2006jd008205
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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