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OLS Field Name OLS Field Data
Main Title Speciation of Ambient Sulfate Particulate Matter Using FT-IR-Based Absorption to Complement Wet Chemical and Thermal Speciation Measurements.
Author McClenny, W. A. ; Krost, K. J. ; Daughtrey, E. H. ; Williams, D. D. ; Allen, G. A. ;
CORP Author ManTech Environmental Technology, Inc., Research Triangle Park, NC. ;Harvard School of Public Health, Boston, MA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c1994
Year Published 1994
Report Number EPA-68-D0-0106; EPA/600/J-94/449;
Stock Number PB95-131157
Additional Subjects Air pollution monitoring ; Ammonium sulfates ; Absorption ; Particulates ; Ammonium compounds ; Chemical analysis ; Nondestructive tests ; Measuring instruments ; Chemical reactions ; Acidification ; Reprints ; Teflon filters
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB95-131157 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/06/1995
Collation 9p
Abstract The direct, nondestructive, infrared transmission measurement of fine particles on Teflon filters is used to unambiguously identify ammonium bisulfate in particle samples collected from the ambient air. The samples are collected at 10 L/min over 23 hours for 24 consecutive summer days (21 July - 14 August) in 1991 in a rural setting near State College, PA. These measurements are combined with the wet chemical analysis of the collected particles to infer the partition of particulate sulfate as ammonium sulfate, ammonium bisulfate, and sulfate associated with excess free hydrogen ion. The effects of particle reactions on the filter in altering the speciation are estimated by comparison of these results with the averaged real-time results obtained by thermal speciation.
Supplementary Notes Pub. in Applied Spectroscopy, v48 n6 p706-713 1994. Prepared in cooperation with Harvard School of Public Health, Boston, MA. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
NTIS Title Notes Journal article.
Title Annotations Reprint: Speciation of Ambient Sulfate Particulate Matter Using FT-IR-Based Absorption to Complement Wet Chemical and Thermal Speciation Measurements.
Category Codes 68A; 55E; 99A; 91A
NTIS Prices PC A02/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 435321108
Origin NTIS
Type CAT