| Main Title |
Non-urban hydrocarbon concentrations in ambient air north of Houston, Texas / |
| Author |
Seila, Robert L.
|
| Other Authors |
|
| CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. |
| Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1979 |
| Report Number |
EPA-600/3-79-010 |
| Stock Number |
PB-293 227 |
| OCLC Number |
52642629 |
| Additional Subjects |
Gas analysis ;
Hydrocarbons ;
Methane ;
Carbon monoxide ;
Vegetation ;
Sources ;
Air pollution ;
Sampling ;
Chemical analysis ;
Sites ;
Laboratory equipment ;
Concentration(Composition) ;
Gas chromatography ;
Texas ;
Houston(Texas) ;
Air pollution detection ;
Air pollution sampling
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
EPA-600/3-79-010 |
|
Region 1 Library/Boston,MA |
05/25/2016 |
| EJBD |
EPA 600-3-79-010 |
c.1 |
Headquarters Library/Washington,DC |
03/24/2014 |
| EKBD |
EPA-600/3-79-010 |
|
Research Triangle Park Library/RTP, NC |
07/18/2003 |
| ELBD ARCHIVE |
EPA 600-3-79-010 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-3-79-010 |
|
AWBERC Library/Cincinnati,OH |
09/16/2016 |
| ESAD |
EPA 600-3-79-010 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-293 227 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 30 pages : illustrations ; 28 cm. |
| Abstract |
In January 1978, a study was undertaken at Jones State Forest, 38 miles north of Houston, Texas, to determine the concentrations of non-methane hydrocarbons, methane, and carbon monoxide; to detail the composition of hydrocarbons (especially of the vegetation); and to discover the sources of non-methane hydrocarbons. Thirteen 3-hour integrated Tedlar bag samples and five grab samples using stainless steel cans were collected over a 39-hour period. The samples were returned to the Research Triangle Park laboratory for analysis, where the can samples showed lower non-methane hydrocarbon concentration values that did the bag samples. Sources of paraffins (72% of the non-methane hydrocarbons) and the other hydrocarbons were found to be: vehicular exhaust (35%), the forest's vegetation (2%), the city of Houston (22%), and the region between Houston and the forest (32%). Isoprene and alpha-pinene were the vegetative hydrocarbons noted, with the latter showing a distinctive 24-hour cycle of concentration variation. |
| Notes |
"February 1979." "EPA-600/3-79-010." |
