Main Title |
Acid Aerosol Measurement Methods: A Summary of U.S. EPA Intercomparisons. |
Author |
Ellestad, T. G. ;
|
CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
Publisher |
1993 |
Year Published |
1993 |
Report Number |
EPA/600/A-93/170; |
Stock Number |
PB93-221885 |
Additional Subjects |
Air pollution sampling ;
Interlaboratory comparisons ;
Aerosols ;
Acidity ;
Photochemical oxidants ;
Ammonium sulfates ;
Ammonium nitrates ;
Sulfuric acid ;
Comparative analysis ;
Quality assurance ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-221885 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
Studies of human exposure to acid aerosols have been underway for several years, leading to the need to intercompare measurement methods for acidic aerosol concentrations. Over the past few years the U.S. EPA has sponsored several intercomparisons of the methods in use. The studies have included single component aerosols of sulfuric acid and ammonium bisulfate, photochemical aerosols, a sequence of compounds chosen to test for on-filter neutralization by ammonium nitrate, the addition of alkaline dust, laboratory-spiked samples, and atmospheric aerosol samples. These studies were designed to establish both intra- and interlaboratory precision and to attempt to separate the effects of differences in flow rate, extraction, and analysis. |
Supplementary Notes |
See also PB90-212572 and PB92-191097. |
Title Annotations |
Reprint: Acid Aerosol Measurement Methods: A Summary of U.S. EPA Intercomparisons. |
Category Codes |
68A; 68G |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
328019317 |
Origin |
NTIS |
Type |
CAT |