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Title: Paso del Norte ozone study VOC measurements, 1996

The results of VOC determinations of ambient air samples collected at surface air quality monitoring sites and near sources of interest on the US and Mexican side of the border during six weeks of the 1996 Paso del Norte Ozone Study are reported. Carbonyl samples were collected on DNPH impregnated cartridges at three surface sites and analyzed by HPLC to quantify 13, C-1 to C-8 species. Whole air samples were collected in electro-polished stainless steel canisters which were returned to laboratory for determination of C-2 to C-10+ hydrocarbons by cryogenic preconcentration capillary gas chromatography with flame ionization detection (gc-fid). Several sources were sampled: rush hour traffic, propane-powered bus exhaust, automobile paint shop emissions, propane fuel, petroleum refinery, and industrial manufacturing site. Spatial and temporal characteristics of VOC species concentrations and compositions are presented. Overall surface TNMOC values ranged from 0.1 to 3.4 ppmC with the highest concentrations recorded in the morning at three vehicle-dominated sites, two in Cuidad Juarez and one in downtown El Paso. Toluene in El Paso samples and propane, which is used as a cooking and transportation fuel in Cuidad Juarez, were the most abundant hydrocarbons.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
6095829
Report Number(s):
PB-99-171480/XAB; EPA--600/A-99/068
Resource Type:
Technical Report
Resource Relation:
Other Information: See also DE00007426
Research Org:
Environmental Protection Agency, National Exposure Research Lab., Research Triangle Park, NC (United States); Sonoma Technology, Inc., Petaluma, CA (United States); Instituto Mexicano del Petroleo, Mexico City (Mexico); Egyptian Radiation and Environmental Monitoring Network, Cairo (Egypt)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; AIR POLLUTION MONITORING; AIR POLLUTION MONITORS; CARBONYLS; HYDROCARBONS; MEXICO; ORGANIC COMPOUNDS; OZONE; POLLUTION SOURCES; VOLATILE MATTER; DEVELOPING COUNTRIES; LATIN AMERICA; MATTER; MEASURING INSTRUMENTS; MONITORING; MONITORS; NORTH AMERICA; POLLUTION 540120* -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (1990-)