Compilation of a biogenic hydrocarbon emissions inventory for evaluating ozone-control strategies in the San Francisco Bay Area

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5181865

Hunsaker, Jr, D B; Moreland, R M

The body of information presented is directed to planners and engineers concerned with developing ozone control strategies. A biogenic hydrocarbon emissions inventory for the San Francisco Bay Area has been prepared for use in determining the degree of hydrocarbon emissions control needed to attain the ozone standard. Remote sensing imagery was used to characterize the regional vegetation distribution, and a Delphi survey of scientists familiar with biogenic emissions was used to provide biogenic hydrocarbon emission factors. For a hypothetical 24-hour period of twelve hours of darkness and twelve hours of light, biogenic sources in the nine-county Bay Area were estimated to produce about 4.5 x 10/sup 5/ kg (500 tons) of total non-methane hydrocarbons; the uncertainty of this estimate was calculated to be +- 50%. The biogenic emissions were found to represent about 33% of the man-made and natural hydrocarbon emissions in the region. The magnitude of the biogenic emissions inventory is not the key factor from which the contribution of biogenic sources to urban ozone production can be discerned. Photochemical dispersion modeling of the total (man-made plus natural) hydrocarbon emissions inventory is recommended as a tool to help understand the contribution of biogenic sources to excessive amounts of the ozone standard in the San Francisco Bay Area.

• Research Organization: Oak Ridge National Lab., TN (USA); Association of Bay Area Governments, Berkeley, CA (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5181865
• Report Number(s): CONF-820627-6; ON: DE82017441
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION CONTROL
CALIFORNIA
CONTROL
DISTRIBUTION
FEDERAL REGION IX
HYDROCARBONS
MONITORING
NORTH AMERICA
ORGANIC COMPOUNDS
OZONE
PACIFIC OCEAN
PLANTS
POLLUTION
POLLUTION CONTROL
SAN FRANCISCO BAY
SEAS
SURFACE WATERS
USA