| Main Title |
Particulate Data from the First Year of Monitoring in Phoenix. Part 2. Organic Carbon and Elemental Composition. |
| Author |
Shreffler, J. ;
Suggs, J. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. |
| Publisher |
1997 |
| Year Published |
1997 |
| Report Number |
EPA/600/A-97/051; |
| Stock Number |
PB97-192553 |
| Additional Subjects |
Air pollution monitors ;
Particulate ;
Organic carbon ;
Trace elements ;
Air pollution sampling ;
Emissions ;
Automobile exhaust ;
Particle size ;
Sulfur ;
Chemical composition ;
Ecological concentration ;
Air filters ;
Meteorological data ;
Wind velocity ;
Data analysis ;
Data collection ;
Statistical analysis ;
Phoenix(Arizona)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB97-192553 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
11p |
| Abstract |
This paper reviews the first year (February 1995-January 1996) of data on particulate composition, centering on the prevalence of elements and organic/elemental carbon. Typically fine mass samples are 40 percent organic carbon, 10 percent elemental carbon, and about 15 percent other elements. Carbon concentrations rise in the late fall and winter, coincident with low wind speeds that may allow automotive emissions to be trapped near the surface. At the same time, carbon rises as a proportion of the fine mass. There is some evidence of leaded gasoline use in Phoenix. Higher wind speeds in the spring and summer result in a greater proportion of crustal elements and sulfur. Comparisons of measurements from the DFPSS (cyclone) and VAPS (virtual impactor), indicate biases consistent with the notion that the cyclone is less efficient at effecting the 2.5 micrometer size cut, allowing larger particles through to the fine mass filters. |
| Supplementary Notes |
See also Part 1, PB97-192587. |
| Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)321-8547; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
68A; 99F; 91A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
731601510 |
| Origin |
NTIS |
| Type |
CAT |
