Main Title |
Dimethyl and Methyl Hydrogen Sulfate in the Atmosphere. |
Author |
Durham, J. L. ;
Spiller, L. L. ;
Eatough, D. J. ;
Hansen, L. D. ;
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. ;Brigham Young Univ., Provo, UT. |
Year Published |
1984 |
Report Number |
EPA-600/D-84-115; |
Stock Number |
PB84-190511 |
Additional Subjects |
Air pollution ;
Laboratory equipment ;
Chemical analysis ;
Concentration(Composition) ;
Diffusion ;
Industrial wastes ;
Transport properties ;
Organic sulfates ;
Sulfur dioxide ;
Electric power plants ;
Sulfate/dimethyl ;
Sulfate/hydroxy-methyl ;
Air pollution detection ;
Air pollution sampling ;
Ion chromatography
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB84-190511 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
A novel technique of using the sample tube penetration profile of trace reactive gases has been applied to the sampling and indirect identification of candidate species through their diffusion coefficients. Laboratory studies of trace dimethyl and methyl hydrogen sulfate flow and their deposition as sulfate to a nylon wall demonstrated that this system can be described theoretically by the modified Gormley-Kennedy equation. Atmospheric samples taken with the penetration sampler in Elkmont, Tennessee, Riverside, California, and Detroit, Michigan exhibited mass deposition spectra that correspond to those of dimethyl and methyl hydrogen sulfate. The profiles were used to estimate the apparent gaseous diffusion coefficient and ambient mass concentration. The estimated diffusion coefficients agree well with semi-empirical theoretical estimates from gas kinetic theory. The estimates of ambient mass of the trace sulfate gas equal or exceed the measurements of fine particulate sulfate; these two variables are not correlated. |
Supplementary Notes |
Prepared in cooperation with Brigham Young Univ., Provo, UT. |
PUB Date Free Form |
May 84 |
Category Codes |
7D; 68A; 99A; 97R |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
421622774 |
Origin |
NTIS |
Type |
CAT |