Real-time measurement of aerosol black carbon during the Carbonaceous Species Methods Comparison Study, Citrus College, Glendora, California, August 12-21, 1986: Final report

Technical Report · Sun Nov 01 00:00:00 EST 1987

OSTI ID:5212724

Hansen, A D.A.; Novakov, T

During the period August 12-21, 1986, the Atmospheric Aerosol Research Group of Lawrence Berkeley Laboratory participated in the Carbonaceous Species Method Comparison Study (CSMCS) conducted at Citrus College, Glendora, California. The equipment that we used was the aethalometer, an instrument developed at LBL that measures the concentration of aerosol black carbon in real time. In this report we present our results from that study in the form of 1-minute, 1-hour, and multi-hour average concentrations. We found concentrations generally ranging from 2 to 5 ..mu..g (BC)m/sup 3/, usually with increases in the morning traffic hours. We also observed short-duration (2-15 min) peaks in the black carbon concentration that could be directly attributed to the activity of vehicles in a delivery area less than 50 m from the study site. We conclude that mobile sources were the major contributor to the short- and medium-term variability of aerosol black carbon measured at this site. 5 refs., 5 figs., 1 tab

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5212724
• Report Number(s): LBL-24582; ON: DE88008393
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOLS
MEASURING METHODS
CARBON BLACK
AIR POLLUTION
AUTOMOBILES
CARBON
COMBUSTION PRODUCTS
DESIGN
ECOLOGICAL CONCENTRATION
EXHAUST GASES
FILTERS
MEASURING INSTRUMENTS
PARTICULATES
POLLUTION SOURCES
PROGRESS REPORT
COLLOIDS
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
FLUIDS
GASEOUS WASTES
GASES
NONMETALS
PARTICLES
POLLUTION
SOLS
VEHICLES
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)