Comparison of four scanning mobility particle sizers at the Fresno Supersite--颗粒学报PARTICUOLOGY

Watson, J. G., Chow, J. C., Sodeman, D. A., Lowenthal, D. H., Chang, M.-C. O., Park, K., & Wang, X. (2011). Comparison of four scanning mobility particle sizers at the Fresno Supersite. Particuology, 9(3), 204–209. https://doi.org/10.1016/j.partic.2011.03.002

Comparison of four scanning mobility particle sizers at the Fresno Supersite

John G. Watson ^{a b *}, Judith C. Chow ^{a b}, David A. Sodeman ^a, Douglas H. Lowenthal ^a, M.-C. Oliver Chang ^a, Kihong Park ^a, Xiaoliang Wang ^a

a Desert Research Institute, 2215 Raggio Parkway, Reno, NV, 89512, USA
b Institute of Earth Environment, Chinese Academy of Sciences, 10 Fenghui South Road, Xi’an High Tech Zone, Xi’an 710075, China

10.1016/j.partic.2011.03.002

Volume 9, Issue 3, June 2011, Pages 204-209

Received 23 November 2010, Revised 23 February 2011, Accepted 14 March 2011, Available online 13 May 2011.

E-mail: john.watson@dri.edu

Highlights

Abstract

Size distributions of ambient aerosols at the Fresno Supersite were measured with four commercially available scanning mobility particle sizers (SMPS). TSI nano, TSI standard, Grimm, and MSP instruments were collocated at the Fresno Supersite and particle size distributions were measured continuously from August 18 through September 18, 2005. For particles with diameters between 10 and 200 nm, differences among hourly-average ambient particle concentrations ranged from 0% between the TSI nano and Grimm in the 30–50 nm size range to 39% between the Grimm and MSP in the 10–30 nm size range. MSP concentrations were 10–33% lower than those measured with the TSI standard for particles smaller than 200 nm. The TSI nano and TSI standard agreed to within 5% in their overlapping size range (10–84 nm). The TSI nano and Grimm agreed to within 40% for 5–10 nm particles.

Graphical abstract

Keywords

Aerosol measurement; SMPS; Fresno; Supersite; Size distribution; Ultrafine particles

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