Model Evaluation of Dry Deposition to Vegetation for Volatile and Semi-Volatile Organic Compounds in a Multimedia Environment |
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| Authors: | Cooter Ellen J Cohen Yoram |
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| Institution: | (1) Atmospheric Sciences Modelling Division, Air Resources Laboratory, National Oceanic and Atmospheric Administration, Research Triangle Park, NC, 27711, U.S.A.;(2) Department of Chemical Engineering, University of California, Los Angeles, Los Angeles, CA, 90065-1590, U.S.A |
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| Abstract: | Gas-phase atmospheric deposition wasevaluated in a screening level model of themultimedia environmental distribution of toxics(MEND-TOX). Algorithmic additions to MEND-TOXfor the estimation of gas-phase depositionvelocity over vegetated surfaces were analyzedusing recently published dry deposition fluxmeasurements for nitric acid. Model outputs arecompared to similar estimates from the NOAAmultilayer dry deposition model. Results of theevaluation indicate that MEND-TOX performs wellas a screening level model for the estimation ofgas-phase dry deposition velocity of nitric acidover soybeans. The present study expandsprevious laboratory results for organic speciesto include an inorganic species and open fieldand dry leaf, conditions.(On assignment to the National Exposure Research Laboratory, U.S. Environmental Protection Agency); (author for correspondence, e-mail |
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| Keywords: | gas-phase deposition multimedia nitric acid screening model vegetation |
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