Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Halogenated aromatic compounds in automotive emissions from leaded gasoline additives

Journal Article · · Environ. Sci. Technol.; (United States)
DOI:https://doi.org/10.1021/es00153a011· OSTI ID:6940281
;
Brominated/chlorinated aromatic compounds were identified in automotive emissions from leaded gasoline containing dibromo- and dichloroethane (DBE and DCE). The predominantly brominated aromatic compounds found were phenols, alkylphenols (ring brominated), and alkylbenzenes (side chain brominated). The major compounds were 2-mono-, 2,4-di-, 2,6-di, and 2,4,6-tribromophenol, monobromo- and dibromomethylphenol, ..cap alpha..-bromotoluene, ..cap alpha..-bromoxylenes, and (bromomethyl)dimethylbenzenes, and smaller amounts of mixed brominated/chlorinated analogues; the total concentration of these halogenated compounds was more than 25 ..mu..f/m/sup 3/ of exhaust. These compounds were not present in exhaust from unleaded gasoline and arise from the DBE and DCE scavenger additives in premium gasoline, presumably via radical halogenation during or after combustion of fuel in the engine. The preliminary results from these experiments under idling motor conditions indicate conversion of these additives to halogenated aromatic compounds at around 0.1-0.2%. With DCE and DBE both present in gasoline, the conversion to brominated aromatic compounds largely exceeds that to chlorinated compounds. 2,4,6-Tribromophenol and other halogenated compounds were also detected on snow collected near a motorway.
Research Organization:
Swiss Federal Research Station, Waedenswil
OSTI ID:
6940281
Journal Information:
Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 20:11; ISSN ESTHA
Country of Publication:
United States
Language:
English

Similar Records

Brominated phenol production from the chlorination of wastewater containing bromide ions
Journal Article · Mon Oct 01 00:00:00 EDT 1984 · Bull. Environ. Contam. Toxicol.; (United States) · OSTI ID:5944654
Synthesis and crystal structure of 2,4,6-tri(. cap alpha. ,. cap alpha. -dimethylbenzyl)phenol
Journal Article · Thu Feb 19 23:00:00 EST 1987 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) · OSTI ID:6418063
Production of ethane, ethylene, and acetylene from halogenated hydrocarbons by methanogenic bacteria
Journal Article · Wed Jul 01 00:00:00 EDT 1987 · Appl. Environ. Microbiol.; (United States) · OSTI ID:5987846

Related Subjects

02 PETROLEUM
020900 -- Petroleum-- Environmental Aspects
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADDITIVES
AIR POLLUTION
AROMATICS
AUTOMOBILES
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
DATA
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
FUELS
GASEOUS WASTES
GASES
GASOLINE
HALOGENATED AROMATIC HYDROCARBONS
INFORMATION
LIQUID FUELS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION
POLLUTION SOURCES
VEHICLES
WASTES