Acquisition of acid vapor and aerosol concentration data for use in dry-deposition studies in the South Coast Air Basin. Volume 1 and Volume 2. Final report, August 1985-March 1988

Technical Report · Tue Mar 01 04:00:00 EST 1988

OSTI ID:6294921

Soloman, P A; Fall, T; Salmon, L; Lin, P; Vasquez, F

Caltech operated a monitoring network at nine sites in the South Coast Air Basin for the calendar year 1986 to collect data on acidic gases and particles. The primary objective of the project was to measure the spatial and temporal distributions of gas phase and particle phase acids and bases to support the California Air Resources Board's dry deposition research and monitoring program. The authors measured the gaseous pollutants HNO/sub 3/, HCl, HF, HBr, formic acid, acetic acid, and ammonia. They also measured particle chemistry in three size ranges: less than 2.2 microns aerodynamic diameter, PM10 (less than 10 microns), and total particles (no size discrimination). Annual average PM10 concentrations varied between 47 micrograms/cu m near the coast to over 87 micrograms/cu m at Rubidoux. The reaction of gas-phase nitric acid with ammonia to form particle-phase ammonium nitrate was a major contributor to the high PM10 values at Rubidoux.

• Research Organization: California Inst. of Tech., Pasadena (USA). Environmental Quality Lab.
• OSTI ID: 6294921
• Report Number(s): PB-89-145395/XAB; EQL-25
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETIC ACID
AEROSOLS
AIR POLLUTION MONITORING
AIR QUALITY
AMMONIA
CALIFORNIA
CARBOXYLIC ACIDS
COLLOIDS
DISPERSIONS
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
FEDERAL REGION IX
FORMIC ACID
GAS ANALYSIS
HYDRIDES
HYDROBROMIC ACID
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MONOCARBOXYLIC ACIDS
NAPAP
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
ORGANIC ACIDS
ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
PROGRESS REPORT
SAMPLING
SOLS
USA