ENAMAP-1a long term air pollution model: refinement of transformation and deposition mechanisms

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6330868

Endlich, R M; Bhumralkar, C M; Brodzinsky, R; Nitz, K C; Cantrell, B K

This paper is concerned with the long-range transport of air pollution over eastern North America. Using standard weather reports and several SOx emission data inventories, the ENAMAP model computes the airborne concentrations of SO2 and SO4 and their deposition on the earth's surface. The newest version of the model (ENAMAP-1B) includes the influences of smoothed terrain on the winds and divides the atmospheric boundary layer into three parts. This treatment allows pollution emissions to be divided among layers. The model has been used to compute monthly average values of concentration and deposition for January and August 1977. Comparisons with air quality measurements show that calculated SO2 concentrations are reasonably accurate, but SO4 concentrations are generally too high. Further tuning of the model is required to optimize its performance. A version of the model applicable to NOx emissions is currently being tested.

• Research Organization: SRI International, Menlo Park, CA (USA)
• OSTI ID: 6330868
• Report Number(s): PB-83-140731
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
DEPOSITION
ENVIRONMENTAL TRANSPORT
MASS TRANSFER
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SAMPLING
SULFUR COMPOUNDS
SULFUR OXIDES