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Source-receptor reconciliation of South Coast Air Basin particulate air quality data. Final report Jul 79-Jan 81

Technical Report ·
OSTI ID:6494335
;
Chemical element balance and chemical tracer techniques are used to identify the source types contributing to particulate air quality in the South Coast Air Basin. An inventory of fine particle trace metals emissions in that air basin is constructed for the year 1976. It is shown that over 80% of the fine lead emissions come from highway traffic, 81% of the nickel arises from fuel oil fly ash, and more than 90% of the iron and manganese comes from soil-like materials. Then, using these metals as tracers for their most prominent source types, the ambient aerosol burden at 10 air monitoring sites is subdivided into contributions from particular source types. It is found that most monitoring sites are exposed to aerosol containing about 20% highway vehicle exhaust, 1% to 2% fuel oil fly ash, 20% to 50% soil dust or road dust, with sulfates and nitrates each present at about 15% of total mass. Source assessments based on currently available trace metals air monitoring data can be constructed and used to improve the accuracy of particulate emission control strategies.
Research Organization:
Cass (Glen R.), Pasadena, CA (USA); McRae (Gregory J.), Pasadena, CA (USA)
OSTI ID:
6494335
Report Number(s):
PB-82-250093
Country of Publication:
United States
Language:
English

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Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL MONITORING
AIR POLLUTION
CALIFORNIA
ELEMENTS
EXHAUST GASES
FEDERAL REGION IX
FLUIDS
FUEL OILS
FUELS
GASEOUS WASTES
GASES
IRON
ISOTOPE APPLICATIONS
LEAD
LIQUID FUELS
MANGANESE
METALS
MONITORING
NICKEL
NITRATES
NITROGEN COMPOUNDS
NORTH AMERICA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PETROLEUM PRODUCTS
POLLUTION
POLLUTION SOURCES
SULFATES
SULFUR COMPOUNDS
TRACE AMOUNTS
TRACER TECHNIQUES
TRANSITION ELEMENTS
USA
WASTES