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RECORD NUMBER: 24 OF 57

OLS Field Name OLS Field Data
Main Title Deposition Velocities of SO2 and O3 Over Agricultural and Forest Ecosystems.
Author Finkelstein, P. L. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 2001
Year Published 2001
Report Number EPA/600/A-01/008;
Stock Number PB2001-103692
Additional Subjects Deposition velocity ; Sulfur dioxide ; Carbon dioxide ; Dry deposition ; Flux ; Ozone ; Particulates ; Data compilation ; Mathematical models ; Agricultural ecosystems ; Forest ecosystems ; National Oceanic and Atmospheric Administration ; Atmospheric Science Modelling Division
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100QHLO.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB2001-103692 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/17/2002
Collation 12p
Abstract
The results of field studies that measured the flux and deposition velocity of SO2 and O3 are reported. Three of the studies were over agricultural crops (pasture, corn, and soybean), and two were over forest (a deciduous forest and a mixed coniferous-deciduous forest). In all cases the deposition velocity for SO2 was higher than for O3. Diurnal cycles of SO2, deposition velocity were similar in shape, but not magnitude for all surfaces; however those for O3 showed some difference between forest sites where the peak was in the morning, and the agricultural sites where the peak occurred at midday. Seasonal cycles of SO2 were affected by deposition to surfaces when leaves weren't active, yet surface conductance is significant, but not the O3 where stomatal uptake is the primary pathway for deposition