Organic and elemental carbon size distributions of Los Angeles aerosols measured during SCAQS. Final report

Technical Report · Fri Dec 01 04:00:00 EST 1989

OSTI ID:6162593

McMurry, P H

The report summarizes measurements of size-resolved residual organic carbon (ROC) and elemental carbon (EC) made by U. of Minnesota during the Southern California Air Quality Study (SCAQS). Measurements were made with MOUDI impactors. Impactors were located at Claremont and Rubidoux during summer SCAQS sampling, and at Long Beach and Los Angeles during the fall. It was found that the average mass mean diameter of ROC ranged from 0.43 micrometer at Los Angeles to 0.62 micrometer at Rubidoux. Mass mean diameters of EC were systematically smaller than for ROC. The ROC/EC ratio varied with site, season and particle size. Average ROC/EC ratios were 2.66 (Claremont), 2.12 (Rubidoux), 1.51 (Long Beach) and 1.26 (Los Angeles).

• Research Organization: Minnesota Univ., Minneapolis, MN (USA). Particle Technology Lab.
• OSTI ID: 6162593
• Report Number(s): PB-91-103614/XAB; PTL-PUB--713
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AEROSOLS
AIR POLLUTION
AIR POLLUTION MONITORING
CALIFORNIA
CARBON
COLLOIDS
DISPERSIONS
DISTRIBUTION
DOCUMENT TYPES
ELEMENTS
FEDERAL REGION IX
LOS ANGELES
NONMETALS
NORTH AMERICA
ORGANIC COMPOUNDS
PARTICLE SIZE
POLLUTION
PROGRESS REPORT
SEASONAL VARIATIONS
SIZE
SOLS
SPATIAL DISTRIBUTION
USA
VARIATIONS