Title of article :
The Treasure Valley secondary aerosol study I: measurements and equilibrium modeling of inorganic secondary aerosols and precursors for southwestern Idaho
Author/Authors :
Hampden Kuhns، نويسنده , , Val Bohdan، نويسنده , , Judy C. Chow، نويسنده , , Vicken Etyemezian، نويسنده , , Mark C. Green، نويسنده , , Douglas Herlocker، نويسنده , , Steven Kohl، نويسنده , , Michael McGown، نويسنده , , June Ramsdell، نويسنده , , William R. Stockwell، نويسنده , , T. Michael Toole and John A. Gambatese، نويسنده , , John Watson، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
14
From page :
511
To page :
524
Abstract :
The SCAPE2 aerosol equilibrium model was applied to measured concentrations of PM2.5 aerosol and precursor gases. Ambient measurements in the Treasure Valley, Idaho were collected during stagnation episodes between December 1999 and March 2000 when conditions were favorable for the formation of secondary inorganic aerosol. SCAPE2 results agreed well with measurements for the episodes tested; Monte Carlo simulation using the uncertainties of the model input variables indicated that discrepancies between measured and modeled results were within the range of analytical precision. Air pollution control strategies were evaluated by perturbing the model input concentrations of total sulfate, nitrate, and ammonium. The largest reductions in secondary aerosol concentrations occurred when total nitrate was reduced, indicating that the formation of ammonium nitrate was limited by the availability of nitrate.
Keywords :
nitrogen oxides , Ammonia , nitrate , particulates , Secondary aerosol formation , equilibrium
Journal title :
Atmospheric Environment
Serial Year :
2003
Journal title :
Atmospheric Environment
Record number :
757457
Link To Document :
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