Maximum ground-level concentrations with downwash--analysis.
Equations derived previously for critical downwind distance xc' wind speed uc' and plume rise zc' the values that produce maximum ground-level concentrations (MGLC) chi c under downwash conditions, have been solved. Tables of chi c' xc' uc' and zc' and graphs of the relationships among uc and zc, for a range of stack heights hs' and building heights hb' are presented. Results for two types of sources--a turbine and a reciprocating engine--are discussed. Some comparisons are made to the U.S. Environmental Protection Agency's (EPA) SCREEN3 model.
Bowman
W A
WA
Day & Zimmerman, Inc., Amarillo, Texas, USA. wbowman@pantex.com
D000392:Air Movements; D000393:Air Pollutants / Q000032:analysis*; D000465:Algorithms; D008962:Models, Theoretical; D014919:Wind
D000393:Air Pollutants