Collection and analysis of nonmethane hydrocarbon transport data from upwind ozone monitoring sites for Louisville, Kentucky and Nashville, Tennessee. Final report, August-December 1980
This document describes the collection of nonmethane hydrocarbon transport data to be used in Level III: EKMA-OZIPP analysis for Louisville, Kentucky and Nashville, Tennessee. Ambient air samples were collected during September, 1980, at sites normally upwind of these cities. Integrated samples were collected at each site from 6:00 am to 9:00 am daily for two weeks. Samples were collected in Tedlar bags then transferred to stainless steel canisters for shipment and analysis. Cryogenic trapping with liquid oxygen was used to concentrate the hydrocarbon species and to separate methane and nonmethane hydrocarbons. Nonmethane hydrocarbons were thermally desorbed in a gas chromatograph and quantitated with a flame ionization detector (FID). This method was thoroughly tested and data in support of it are presented within the report. Nonmethane hydrocarbon (NMHC) concentrations (6-9 am average) near the upwind monitoring site for Louisville, Kentucky, ranged from 0.11 to 0.96 ppmv-C with a mean value of 0.30 ppmv-C and a median of 0.22 ppmv-C. NMHC concentrations near the upwind monitoring site for Nashville, Tennesee ranged from 0.06 to 0.34 ppmv-C with a mean value of 0.12 ppmv-C and a median of 0.09 ppmv-C.
- Research Organization:
- Radian Corp., Durham, NC (USA)
- OSTI ID:
- 5718628
- Report Number(s):
- PB-81-152910
- Country of Publication:
- United States
- Language:
- English
Similar Records
The influence factors and novel character of the concentration distribution of atmospheric C{sub 2}-C{sub 10} nonmethane hydrocarbons monitored at Lanyu, Taiwan
Determination of low levels of total nonmethane hydrocarbon content in ambient air