Hygroscopic properties of atmospheric aerosol in Riverside, California

M. J. Rood; D. S. Covert; T. V. Larson

doi:10.3402/tellusb.v39i4.15357

Hygroscopic properties of atmospheric aerosol in Riverside, California

Tellus B: Chemical and Physical Meteorology

Volume 39 (1987): Issue 4

By: M. J. Rood, D. S. Covert and T. V. Larson

Open Access

|Jan 1987

Abstract

The hygroscopic properties of atmospheric aerosol were investigated by performing insitu optical measurements under controlled temperature and relative humidity conditions. Complementary measurements included ambient relative humidity and aerosol filter sampling. Measurements were performed in Riverside, California during the months of August and September, 1983. Experimental results indicate that ambient aerosol particles, with diameters less than 2 μm, exhibited deliquescence between 73 and 78% relative humidity during 52% of the measurements. During a one-week intensive sampling period, ambient aerosol particles existed as droplets during 86% of the tests and were dry during the balance of those measurements. When ambient aerosol droplets were detected, they were supersaturated with respect to solute concentration during 71 % of tests and were otherwise subsaturated with respect to solute concentration.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusb.v39i4.15357 | Journal eISSN: 1600-0889

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Language: English

Page range: 383 - 397

Submitted on: Aug 11, 1986

Accepted on: Dec 16, 1986

Published on: Jan 1, 1987

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1987 M. J. Rood, D. S. Covert, T. V. Larson, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 39 (1987): Issue 4