Sources of Fine Organic Aerosol. 9. Pine, Oak, and Synthetic Log Combustion in Residential Fireplaces

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• 作者：Wolfgang F. Rogge ; Lynn M. Hildemann ; Monica A. Mazurek ; and Glen R. Cass
• 刊名：Environmental Science & Technology
• 出版年：1998
• 出版时间：January 1, 1998
• 年：1998
• 卷：32
• 期：1
• 页码：13 - 22
• 全文大小：347K
• 年卷期：v.32,no.1(January 1, 1998)
• ISSN：1520-5851

文摘

Combustion of wood in residential fireplaces contributesapproximately 14% on an annual average of the totalprimary fine particle organic carbon (OC) emissions to theLos Angeles urban atmosphere and up to 30% of the fineparticulate OC emissions on winter days. This paperpresentscomprehensive organic compound source profiles forsmoke from burning pine, oak, and synthetic logs inresidentialfireplaces. Mass emission rates are determined forapproximately 200 organic compounds including suites ofthe n-alkanes, n-alkenes, cyclohexylalkanes,n-alkanals, n-alkanoic acids, alkenoic acids, dicarboxylic acids, resinacids, hydroxylated/methyoxylated phenols, lignans, substituted benzenes/benzaldehydes, phytosterols, polycyclicaromatic hydrocarbons (PAHs), and oxy-PAHs. Woodsmokeconstituents reflect to a great extent the underlyingcomposition of the wood burned: pine and oak logsproducesmoke that is enriched in lignin decomposition products,pine smoke is enriched in resin acids and their thermalalteration products, while smoke from the synthetic logburnedhere bears the major signature of the petroleum productscombined with traces of the sawdust components fromwhich it is made. Resin acids are discussed aspotentialwood smoke tracers in the environment, and it is shownthat the time series of resin acids concentrations in theLos Angeles atmosphere follows the extreme seasonal variation in wood use reported in previous emissions inventoriesfor the Los Angeles urban area.