Dry deposition of acidic gases and particles. Final report

Technical Report · Sat Feb 01 04:00:00 EST 1986

OSTI ID:6405863

John, W; Wall, S M; Ondo, J L; Wang, H C

The major objective of the study was to provide measurement methods and base-line data on dry acid deposition in California. A hydrogen peroxide bubbler was successfully tested to measure SO/sub 2/ at ppb levels. Direct measurements of acidic-particle deposition on leaves of ligustrum, pine needles, and surrogate surfaces gave results of high degree of reproducibility. Additionally, a Berner impactor (named after Dr. Berner of Austria) was tested and found to be an excellent sampler for acidic particles. The sampler was characterized in the laboratory and was found to have sharp particle-size separations. Losses of ammonium nitrate from volatilization in the impactor were found to be relatively small. Size distributions for strong acid, sulfate, nitrate, ammonium, sodium and chloride ions were obtained at Berkeley and Oildale.

• Research Organization: California Dept. of Health Services, Berkeley (USA). Air and Industrial Hygiene Lab.
• OSTI ID: 6405863
• Report Number(s): PB-87-182077/XAB; CA/DOH/AIHL/SP-40
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORS
CALIFORNIA
CHALCOGENIDES
DEPOSITION
FEDERAL REGION IX
FLUIDS
GASES
MEASURING INSTRUMENTS
MONITORS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
PARTICULATES
POLLUTION
SIZE
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
USA