Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2000-8-22
pubmed:abstractText
With the removal of lead from gasoline and the use of new technologies, there have been some changes in vehicle emissions. In order to find out if the unleaded gasoline has the ability to reduce the emission of pollutants, leaded and unleaded gasoline were tested on a Santana engine dynamometer under a standard test cycle. The concentrations of hydrocarbons (HC) and carbon monoxide (CO) in emission were analyzed. The extracts of total exhaust particles were also collected and the components were detected by gas chromatography/mass spectrometry (GC/MS). A series of different end point genotoxicity tests, including the Ames test, the single cell gel electrophoresis (SCGE) assay, and micronucleus induction assay, were performed to investigate the mutagenicity in the two kinds of gasoline. We found that unleaded gasoline could reduce the emission of CO and HC and significantly decrease the quantity of vehicle exhaust particulate matter by 60%. As for the component analysis, only 23 kinds of organic substances adsorbed onto the particles were identified in the unleaded gasoline, while 32 kinds of compounds were detected in the leaded gasoline. The genotoxicity tests indicated that both types of gasoline could enhance the number of histidine-independent colonies in the Ames test, cause DNA damage, and increase the frequency of induced micronucleus in the Chinese hamster lung (CHL) cells. For the same particle weight, no difference was found between their mutagenicity. Because of the decrease in the emission of CO, HC, and particles in unleaded gasoline, this gasoline has some benefits for the environment and human health.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0731-8898
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
41-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Effect of leaded and unleaded gasoline on the mutagenicity of vehicle exhaust particulate matter.
pubmed:affiliation
Department of Environmental Health, Shanghai Medical University, China.
pubmed:publicationType
Journal Article