The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Spatial and monthly trends in speciated fine particle concentration in the United States
Open accessAbstract
In the spring of 1985 an interagency consortium of federal land management agencies and the Environmental Protection Agency established the Interagency Monitoring of Protected Visual Environments (IMPROVE) network to assess visibility and aerosol monitoring for the purpose of tracking spatial and temporal trends of visibility and visibility‐impairing particles in rural areas. The program was initiated with 20 monitoring sites and was expanded to 165 sites between 2000 and 2003. This paper reports on fine aerosol data collected in the year 2001 at 143 sites. The major fine (d p < 2.5 μm) particle aerosol species, sulfates, nitrates, organics, light‐absorbing carbon, and wind‐blown dust, and coarse gravimetric mass are monitored, and at some sites, light scattering and/or extinction are measured. Sulfates, carbon, and crustal material are responsible for most of the fine mass at the majority of locations throughout the United States, while at sites in southern California and the midwestern United States, nitrates can contribute significantly. In the eastern United States, sulfates contribute between 50 and 60% of the fine mass. Sulfate concentrations tend to be highest in the summer months while organic concentrations can be high in the spring, summer, or fall seasons, depending upon fire‐related emissions. However, at the two urban sites, Phoenix, Arizona, and Puget Sound, Washington, organics peak during the winter months. Nitrate concentrations also tend to be highest during the winter months. During the spring months in many areas of the western United States, fine soil can contribute as much as 40% of fine mass. The temporal changes in soil concentration that occur simultaneously over much of the western United States including the Rocky Mountain region suggest a large source region, possibly long‐range transport of Asian dust.
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Citations
Cites
Atmospheric Chemistry and Physics: From Air Pollution to Climate Change
Seinfeld, J. H., Pandis, S. N., & Noone, K. (1998) · Physics Today · doi:10.1063/1.882420 · Cited by 8,731
Prospero, J. M., Ginoux, P., Torres, O., Nicholson, S. E., & Gill, T. E. (2002) · Reviews of Geophysics · doi:10.1029/2000rg000095 · Cited by 2,977
Turpin, B. J., & Lim, H.-J. (2001) · Aerosol Science and Technology · doi:10.1080/02786820119445 · Cited by 2,036
Gas/Particle Partitioning and Secondary Organic Aerosol Yields
Odum, J. R., Hoffmann, T., Bowman, F., Collins, D., Flagan, R. C., & Seinfeld, J. H. (1996) · Environmental Science & Technology · doi:10.1021/es950943+ · Cited by 1,529
Spatial and seasonal trends in particle concentration and optical extinction in the United States
Malm, W. C., Sisler, J. F., Huffman, D., Eldred, R. A., & Cahill, T. A. (1994) · Journal of Geophysical Research: Atmospheres · doi:10.1029/93jd02916 · Cited by 1,302
Self-citationChow, J. C., Watson, J. G., Pritchett, L. C., Pierson, W. R., Frazier, C. A., & Purcell, R. G. (1993) · Atmospheric Environment. Part A. General Topics · doi:10.1016/0960-1686(93)90245-t · Cited by 1,161
Asian dust events of April 1998
Husar, R. B., Tratt, D. M., Schichtel, B. A., Falke, S. R., Li, F., Jaffe, D., Gassó, S., Gill, T., Laulainen, N. S., Lu, F., et al. (2001) · Journal of Geophysical Research: Atmospheres · doi:10.1029/2000jd900788 · Cited by 851
Self-citationFine Particle and Gaseous Emission Rates from Residential Wood Combustion
McDonald, J. D., Zielinska, B., Fujita, E. M., Sagebiel, J. C., Chow, J. C., & Watson, J. G. (2000) · Environmental Science & Technology · doi:10.1021/es9909632 · Cited by 607
Formation of atmospheric particles from organic acids produced by forests
Kavouras, I. G., Mihalopoulos, N., & Stephanou, E. G. (1998) · Nature · doi:10.1038/27179 · Cited by 481
Aromatics, Reformulated Gasoline, and Atmospheric Organic Aerosol Formation
Odum, J. R., Jungkamp, T. P. W., Griffin, R. J., Forstner, H. J. L., Flagan, R. C., & Seinfeld, J. H. (1997) · Environmental Science & Technology · doi:10.1021/es960535l · Cited by 348
Cited by
Chow, J. C., Watson, J. G., Chen, L.-W. A., Chang, M. C. O., Robinson, N. F., Trimble, D., & Kohl, S. (2007) · Journal of the Air & Waste Management Association · doi:10.3155/1047-3289.57.9.1014 · Cited by 854
Lamarque, J.-F., Emmons, L. K., Hess, P. G., Kinnison, D. E., Tilmes, S., Vitt, F., Heald, C. L., Holland, E. A., Lauritzen, P. H., Neu, J., et al. (2012) · Geoscientific Model Development · doi:10.5194/gmd-5-369-2012 · Cited by 835
Lamarque, J.-F., Kyle, G. P., Meinshausen, M., Riahi, K., Smith, S. J., van Vuuren, D. P., Conley, A. J., & Vitt, F. (2011) · Climatic Change · doi:10.1007/s10584-011-0155-0 · Cited by 466
Metadata
- Authors
- Malm, W. C., Schichtel, B. A., Pitchford, M. L., Ashbaugh, L. L., & Eldred, R. A.
- Venue
- Journal of Geophysical Research: Atmospheres
- Publisher
- American Geophysical Union (AGU)
- Published
- 2004-02-12
- Volume
- 109
- Issue
- D3
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2042472688
- Cited by
- 391
- References
- 27
- FWCI
- 16.32
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Malm, W. C., Schichtel, B. A., Pitchford, M. L., Ashbaugh, L. L., & Eldred, R. A. (2004). Spatial and monthly trends in speciated fine particle concentration in the United States. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/2003jd003739
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