Instrument to collect fogwater for chemical analysis

Journal Article · Sat Jun 01 00:00:00 EDT 1985 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1137995· OSTI ID:5780581

Jacob, D J; Waldman, J M; Haghi, M; Hoffmann, M R; Flagan, R C

An instrument is presented which collects large samples of ambient fogwater by impaction of droplets on a screen. The collection efficiency of the instrument is determined as a function of droplet size, and it is shown that fog droplets in the range 3--100-..mu..m diameter are efficiently collected. No significant evaporation or condensation occurs at any stage of the collection process. Field testing indicates that samples collected are representative of the ambient fogwater. The instrument may easily be automated, and is suitable for use in routine air quality monitoring programs.

• Research Organization: Environmental Engineering Science, W. M. Keck Engineering Laboratories, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5780581
• Journal Information: Rev. Sci. Instrum.; (United States), Vol. 56:6
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
DESIGN
FOG
AEROSOL MONITORING
CHEMICAL COMPOSITION
AEROSOLS
DROPLETS
AIR POLLUTION MONITORING
COLLOIDS
DISPERSIONS
MEASURING INSTRUMENTS
MONITORING
MONITORS
PARTICLES
SOLS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)