Abstract
In Korea emissions from motor vehicles are a major source of air pollution in metropolitan cities, and in Seoul a large proportion of the vehicle fleet is made up of gasoline-powered passenger cars. The carbon monoxide (CO), hydrocarbons (HC), oxides of nitrogen (NOx) and carbon dioxide (CO 2) contained in the exhaust emissions from 76 gasoline-powered passenger cars equipped with three-way catalysts has been assessed by vehicle speed, vehicle mileage and model year. The results show that CO, HC, NOx and CO CO 2 emissions remained almost unchanged at higher speeds but decreased rapidly at lower speeds. While a reduction in CO, HC and NOx emissions was noticeable in vehicles of recent manufacture and lower mileage, CO CO 2 emissions were found to be insensitive to vehicle mileage, but strongly dependent on gross vehicle weight. Lower emissions from more recent gasoline-powered vehicles arose mainly from improvements in three-way catalytic converter technology following strengthened emission regulations. The correlation between CO CO 2 emission and fuel consumption has been investigated with a view to establishing national CO CO 2 emission standards for Korea.
| Original language | English |
|---|---|
| Pages (from-to) | 1173-1181 |
| Number of pages | 9 |
| Journal | Environmental Technology |
| Volume | 32 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2011 Aug 1 |
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Keywords
- emission characteristics
- fuel consumption
- gasoline passenger cars
- three-way catalyst
- vehicle mileage
ASJC Scopus subject areas
- Environmental Chemistry
- Waste Management and Disposal
- Water Science and Technology
Cite this
Speed-dependent emission of air pollutants from gasoline-powered passenger cars. / Jung, Sungwoon; Lee, Meehye; Kim, Jongchoon; Lyu, Youngsook; Park, Junhong.
In: Environmental Technology, Vol. 32, No. 11, 01.08.2011, p. 1173-1181.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Speed-dependent emission of air pollutants from gasoline-powered passenger cars
AU - Jung, Sungwoon
AU - Lee, Meehye
AU - Kim, Jongchoon
AU - Lyu, Youngsook
AU - Park, Junhong
PY - 2011/8/1
Y1 - 2011/8/1
N2 - In Korea emissions from motor vehicles are a major source of air pollution in metropolitan cities, and in Seoul a large proportion of the vehicle fleet is made up of gasoline-powered passenger cars. The carbon monoxide (CO), hydrocarbons (HC), oxides of nitrogen (NOx) and carbon dioxide (CO 2) contained in the exhaust emissions from 76 gasoline-powered passenger cars equipped with three-way catalysts has been assessed by vehicle speed, vehicle mileage and model year. The results show that CO, HC, NOx and CO CO 2 emissions remained almost unchanged at higher speeds but decreased rapidly at lower speeds. While a reduction in CO, HC and NOx emissions was noticeable in vehicles of recent manufacture and lower mileage, CO CO 2 emissions were found to be insensitive to vehicle mileage, but strongly dependent on gross vehicle weight. Lower emissions from more recent gasoline-powered vehicles arose mainly from improvements in three-way catalytic converter technology following strengthened emission regulations. The correlation between CO CO 2 emission and fuel consumption has been investigated with a view to establishing national CO CO 2 emission standards for Korea.
AB - In Korea emissions from motor vehicles are a major source of air pollution in metropolitan cities, and in Seoul a large proportion of the vehicle fleet is made up of gasoline-powered passenger cars. The carbon monoxide (CO), hydrocarbons (HC), oxides of nitrogen (NOx) and carbon dioxide (CO 2) contained in the exhaust emissions from 76 gasoline-powered passenger cars equipped with three-way catalysts has been assessed by vehicle speed, vehicle mileage and model year. The results show that CO, HC, NOx and CO CO 2 emissions remained almost unchanged at higher speeds but decreased rapidly at lower speeds. While a reduction in CO, HC and NOx emissions was noticeable in vehicles of recent manufacture and lower mileage, CO CO 2 emissions were found to be insensitive to vehicle mileage, but strongly dependent on gross vehicle weight. Lower emissions from more recent gasoline-powered vehicles arose mainly from improvements in three-way catalytic converter technology following strengthened emission regulations. The correlation between CO CO 2 emission and fuel consumption has been investigated with a view to establishing national CO CO 2 emission standards for Korea.
KW - emission characteristics
KW - fuel consumption
KW - gasoline passenger cars
KW - three-way catalyst
KW - vehicle mileage
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U2 - 10.1080/09593330.2010.505611
DO - 10.1080/09593330.2010.505611
M3 - Article
VL - 32
SP - 1173
EP - 1181
JO - Environmental Technology (United Kingdom)
JF - Environmental Technology (United Kingdom)
SN - 0959-3330
IS - 11
ER -