Emissions from Two Outboard Engines Operating on Reformulated Gasoline Containing MTBE

Autor:	Steven M. Pyle, Peter A. Gabele
Rok vydání:	1999
Předmět:	Pollutant Xylene Environmental engineering Air pollution General Chemistry BTEX Particulates medicine.disease_cause Ethylbenzene chemistry.chemical_compound chemistry Environmental chemistry medicine Environmental Chemistry Gasoline Petrol engine
Zdroj:	Environmental Science & Technology. 34:368-372
ISSN:	1520-5851 0013-936X
DOI:	10.1021/es990770e
Popis:	Air and water pollutant emissions were measured from two 9.9 HP outboard engines: a two-stroke Evinrude and its four-stroke Honda counterpart. In addition to the measurement of regulated air pollutants, speciated organic pollutants and particulate matter emissions were determined. Aqueous samples were analyzed for MTBE (methyl tert-butyl ether) and BTEX (benzene, toluene, ethylbenzene, and xylene) emission rates. Compared to the four-stroke engine, the two-stroke had dramatically higher levels of toxic organic and particulate matter emissions. The organic material emitted from the two-stroke engine resembles the test gasoline due to the predominance of unburned fuel. Emission rates for PM10 (particulate matter with a diameter of 10 μm or less) are equal to those for PM2.5, implying that emitted particles are all in the respirable range. Aqueous emissions from the two-stroke are also higher: the two-stroke's BTEX and MTBE emissions are, on average, 5 and 24 times higher, respectively, and 3−10% of the MT...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c8aede12b99536305dac256b771055f6 https://doi.org/10.1021/es990770e Zobrazit plný text záznamu