| Main Title |
Measurement of Light Absorption Extinction in Denver. |
| Author |
Lewis, C. W. ;
Dzubay, T. G. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
| Year Published |
1986 |
| Report Number |
EPA/600/J-86/224; |
| Stock Number |
PB87-170411 |
| Additional Subjects |
Absorption ;
Light(Visible radiation) ;
Concentration(Composition) ;
Air pollution ;
Particles ;
Denver(Colorado)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB87-170411 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
Simultaneous measurements of bext (teleradiometer), b(sup sp) (integrating nephelometer) and b(sup ag) (N02 monitor) were used to obtain particle absorption extinction coefficients b(sup sp) for the Denver atmosphere during January 1982. The average of the ratio bap/b(sup sp) was measured to be 0.185 + or - 0.015 at 530 nm, which is 2-3 times smaller than previous measurements. Supplementary data included b(sup ap) measurements by the integrating plate method, which yielded values systematically higher by about 35%, and elemental carbon (black soot) aerosol concentration, from which a value of 8.0 + or - 0.6 m sq/g-1 was obtained for the mass-specific absorption coefficient of elemental carbon. |
| Supplementary Notes |
Pub. in Aerosol Science and Technology 5, p325-336 Sep 86. |
| NTIS Title Notes |
Journal article. |
| PUB Date Free Form |
1986 |
| Category Codes |
55A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
716918574 |
| Origin |
NTIS |
| Type |
CAT |
