Toluene degradation products in simulated atmospheric conditions

Autor:	Robert J. O'Brien, Bruce E. Dumdei
Rok vydání:	1984
Předmět:	chemistry.chemical_classification Multidisciplinary Air pollution medicine.disease_cause Toluene Atmosphere chemistry.chemical_compound Hydrocarbon chemistry medicine Degradation (geology) Organic chemistry Hydroxyl radical Gasoline Aromatic hydrocarbon
Zdroj:	Nature. 311:248-250
ISSN:	1476-4687 0028-0836
DOI:	10.1038/311248a0
Popis:	Atmospheric hydrocarbons have an important influence on the chemistry of the polluted lower atmosphere. Aromatic hydrocarbons or benzene derivatives comprise about 25–40% of gasoline in the US1 and they are widely employed as solvents. Toluene is the most commonly used aromatic hydrocarbon and is often the most abundant of all non-methane hydrocarbons in urban atmospheres. Typical urban toluene concentrations range from 1 to 50 p.p.b. (parts per 109)2,3 and clean-air concentrations up to 0.4 p.p.b. have been reported4. The aromatic hydrocarbons are destroyed by reaction with atmospheric hydroxyl radical (HO) and toluene remains in the atmosphere for about 50 daylight hours before reacting. Despite extensive study, toluene's reaction products are poorly understood5. Many reaction products have been identified, but most of these are ring-addition or side-chain oxidation products which retain the aromatic character of toluene. We have conducted a thorough study of toluene's oxidation products in simulated atmospheric conditions and present here an account of the products found and outline their probable formation and destruction mechanisms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0ced6555693cc8d0f3e91ff23b28d369 https://doi.org/10.1038/311248a0 Zobrazit plný text záznamu