Equilibrium size of atmospheric aerosol sulfates as a function of particle acidity and ambient relative humidity

Journal Article · Tue Apr 20 04:00:00 EDT 1993 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/92JD03028· OSTI ID:6184747

Koutrakis, P; Kelly, B P ^[1]

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1. Harvard Univ., Boston, MA (United States)

The authors report the results of an atmospheric chemistry and exposure study conducted at Uniontown, Pa during the summer of 1990. The paper reports the size distribution of sulfate aerosols, and correlates the size with the acidity of the particles and the relative humidity. Results are then compared with laboratory data and thermodynamic calculations. The results show that particle size increases, along with acidity and relative humidity. This is the first atmospheric data which shows correlations with laboratory data and simulations, and gives hope for the ability to model this system.

• OSTI ID: 6184747
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 98:D4; ISSN JGREA2; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AEROSOLS
ATMOSPHERIC CHEMISTRY
CHEMISTRY
COLLOIDS
DISPERSIONS
HUMIDITY
OXYGEN COMPOUNDS
PARTICLE SIZE
PH VALUE
SIZE
SOLS
SULFATES
SULFUR COMPOUNDS