Main Title |
Evaluation of techniques for measuring biogenic airborne sulfur compounds : Cedar Island field study 1977 / |
Author |
McClenny, W. A. ;
Shaw, R. W. ;
Baumgardner, R. E. ;
Braman, R. S. ;
Ammons, J. M.
|
Other Authors |
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. ;University of South Florida, Tampa. Dept. of Chemistry. |
Publisher |
U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory, Office of Research and Development, |
Year Published |
1979 |
Report Number |
EPA-600/2-79-004 |
Stock Number |
PB-290 658 |
OCLC Number |
52543831 |
Additional Subjects |
Gas analysis ;
Sulfur inorganic compounds ;
Sulfur organic compounds ;
Air pollution ;
Chemical analysis ;
Particles ;
Concentration(Composition) ;
Fines ;
Aerosols ;
X ray analysis ;
X ray fluorescence ;
Hydrogen sulfide ;
Biological productivity ;
Sampling ;
Sulfur dioxide ;
Air pollution detection ;
Sulfide/dimethyl ;
Sulfide/methyl
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
EPA-600/2-79-004 |
|
Region 1 Library/Boston,MA |
05/25/2016 |
EJBD |
EPA 600-2-79-004 |
c.1 |
Headquarters Library/Washington,DC |
12/27/2013 |
EKBD |
EPA-600/2-79-004 |
|
Research Triangle Park Library/RTP, NC |
07/04/2003 |
ELBD ARCHIVE |
EPA 600-2-79-004 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-79-004 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-290 658 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xv, 122 pages : illustrations, map ; 28 cm. |
Abstract |
Sulfur in both gaseous and particulate form has been measured near biogenic sources using new measurement techniques. The preconcentration of gaseous sulfur on gold-coated glass beads followed by desorption into a flame photometric detection for sulfur is shown to have a detection limit of 0.1-0.2 ng of sulfur and to allow for speciation of H2S, CH3SH and (CH3)2S at low parts per trillion levels. Ambient levels of NO2 and O3 were found to alter the molecular form of sulfur on the beads unless scrubbed from the sampled air. A collection technique using tandem filters is extended from earlier efforts on fine and coarse aerosol to include collection of SO2 and H2S on chemically coated filters; these filters are analyzed by X-ray fluorescence for sulfur content. Measurements of gases evolved from biogenic sources reveal H2S and (CH3)2S as primary components with significant diurnal variations. Recommendations for further instrument development are given. |
Notes |
"January 1979." Includes bibliographical references. "EPA-600/2-79-004." |