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Comparison of the Mutagenicity of Exhaust Emissions From Motor Vehicles Using Leaded and Unleaded Gasoline as Fuel 被引量:1
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作者 YUANDONG ZHOUWEI 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1999年第2期136-143,共8页
While Unleaded gasoline has the advantage of eliminating lead from automobile exhaust, its potential to reduce the exhaust gas and particles, merits further examination. In the present studies,the concentrations of hy... While Unleaded gasoline has the advantage of eliminating lead from automobile exhaust, its potential to reduce the exhaust gas and particles, merits further examination. In the present studies,the concentrations of hydrocarbons (HC) and earbon monoxides (CO) in emissions were analyzed on Santana engine Dynamometer under a standard test cycle, and total exhaust particles were collected from engines using leaded and unleaded gasoline. It was found that unleaded gasoline reduced the emissions of CO and HC, and decreased the quantity of vehicle exhaust particulate matters by 60%.With the unlead gasoline, only 23 kinds of organic substances, adsorbed in the particles, were identified by gas chromatography/mass spectrometer (GC/MS) while 32 components were detected using the leaded gasoline. The results of in vitro Salmonella/ microsomal test and micronucleus induction assay in CHL cells indicated that both types of gasoline increased the number of histidine-independent colonies and the frequencies of micronucleus induction; no significant differellce was found in their mutagenicity. 展开更多
关键词 line Comparison of the Mutagenicity of Exhaust Emissions From motor vehicles Using Leaded and Unleaded Gasoline as Fuel PAHS
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Management of the Recall of Defective Motor Vehicles in China
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作者 Liu Xiang Yang Ying 《China Standardization》 2005年第3期20-23,共4页
The Administrative Regulation on the Recall of Defective Motor Vehicles has officially entered into force on October 1st, 2004, which means the management on defective products has made a substantive progress. The ena... The Administrative Regulation on the Recall of Defective Motor Vehicles has officially entered into force on October 1st, 2004, which means the management on defective products has made a substantive progress. The enactment and enforcement of the Administrative Regulation has generated active responses in our society and drawn much attention from the automobile industry. Up to March 2005, there have been 15 domestic and foreign auto manufacturers initiating voluntary recalls since the Administrative Regulation on the Recall of Defective Motor Vehicles was issued in March 2004, and 312864 vehicles have been recalled. All the relevant firms, types, models, numbers and the date are as the following table 1. 展开更多
关键词 SIQ Management of the Recall of Defective motor vehicles in China
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Dynamic emission characteristics and control strategies of air pollutants from motor vehicles in downtown Beijing,China
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作者 Yan Shen Tongran Wu +9 位作者 Aiping Lian Jie Gao Fei Peng Guohua Song Xuefang Wu Yangyang Cui Xinyu Liu Yunfei Wan Jing Yan Yifeng Xue 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2024年第2期637-646,共10页
This study combined the real-time monitoring and investigation of traffic flows to comprehensively analyze the road traffic flow and vehicle structure in downtown Beijing.A dynamic emission inventory of motor vehicle ... This study combined the real-time monitoring and investigation of traffic flows to comprehensively analyze the road traffic flow and vehicle structure in downtown Beijing.A dynamic emission inventory of motor vehicle air pollutants in downtown Beijing in 2021 was established,and the impact of these emissions on air quality was simulated and quantified,and different emission reduction control scenarios were proposed to evaluate their environmental improvement effects and explore measures to mitigate the impact of pollution emissions.The results show that the high traffic flow and the structure of the motor vehicle emissions in downtown Beijing are the main causes of severe motor vehicle pollution.Monitoring data shows that traffic flow in central Beijing is dominated by small passenger vehicles,while the vehicle mix is better than in other regions,with 72.0%of vehicles meeting"National V"or higher emission standards.However,to achieve higher air quality goals,further reducing vehicle emissions is necessary.Based on dynamic traffic flow,the average daily emissions of nitrogen oxides(NOX),particulate matters(PM_(2.5))and volatile organic compounds(VOC)from motor vehicles in central Beijing are 17.7 tons,0.6 tons and 14.0 tons,respectively,accounting for 23.0%of the city’s average daily motor vehicle emissions.If a zero-emission zone for motor vehicles were implemented in central Beijing,the annual average emission level of pollutants will be reduced by 10.4%to 21.0%.The designation of ultra-low emission zones for motor vehicles could be effective in improving the air quality in the center of Beijing. 展开更多
关键词 motor vehicle Air pollutant Emission characteristics Control strategy BEIJING
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Factors Influence Hanoians’ Choice of Non-Motorized Transport Mode to Access Bus Stations
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作者 Ngo Trung Phuong Masahiko Kikuchi +1 位作者 Aya Kojima Hisashi Kubota 《Journal of Transportation Technologies》 2024年第3期372-389,共18页
Hanoi’s rapid urbanization has led to a surge in private vehicle ownership, particularly motorcycles, amidst inadequate public transportation infrastructure. Despite government efforts, many still prefer motorized tr... Hanoi’s rapid urbanization has led to a surge in private vehicle ownership, particularly motorcycles, amidst inadequate public transportation infrastructure. Despite government efforts, many still prefer motorized transport, citing mobility and safety concerns, exacerbated by insufficient pedestrian infrastructure. This study examines the motivations behind this reliance on motorized vehicles, particularly motorcycles, in Hanoi. Findings reveal safety and convenience as primary factors driving motorized transport use, especially for accessing bus stations. Economic incentives could promote non-motorized travel and public transport adoption. Policy implications highlight the importance of addressing economic factors and improving access infrastructure to manage motorized vehicle reliance and foster sustainable urban mobility in Hanoi. 展开更多
关键词 Access Mode Choice Non-motorized vehicles motorized vehicles Bus User Urban Transport Behavior
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Import And Export Of Motor Vehicles(Jan. to Mar., 1996)
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《中国汽车(英文版)》 1996年第3期25-25,共1页
关键词 AIB MMI Import And Export Of motor vehicles JAN
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Import And Export Of Motor Vehicles(Jan. to Jun., 1996)
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《中国汽车(英文版)》 1996年第4期27-27,共1页
关键词 to Jun Import And Export Of motor vehicles JAN
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Production and Sales of Motor Vehicles, Jan. to Feb. 1998
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《中国汽车(英文版)》 1998年第2期14-14,共1页
关键词 to Feb Production and Sales of motor vehicles JAN
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Production and Sales of Motor Vehicles, Jan. to July, 1998
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《中国汽车(英文版)》 1998年第4期13-13,共1页
关键词 to July Production and Sales of motor vehicles JAN
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Production and sales of motor vehicles, Jan. to Dec., 1998
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《中国汽车(英文版)》 1999年第1期18-18,共1页
关键词 to Dec Production and sales of motor vehicles JAN
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Production and Sales of Motor Vehicles, Jan. to May 1998
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《中国汽车(英文版)》 1998年第3期19-19,共1页
关键词 to May 1998 Production and Sales of motor vehicles JAN
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Import and Export of Motor Vehicles(Jan. to March, 1997)
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《中国汽车(英文版)》 1997年第3期21-21,共1页
关键词 Import and Export of motor vehicles JAN
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Import and Export of Motor Vehicles(Jan. to Sept., 1997)
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《中国汽车(英文版)》 1997年第6期19-19,共1页
关键词 Import and Export of motor vehicles JAN
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Import and Export of Motor Vehicles, 1998 Jan. to Sept.
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《中国汽车(英文版)》 1998年第6期22-22,共1页
关键词 Import and Export of motor vehicles JAN
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Import off Motor Vehicles in 1997(by region)
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《中国汽车(英文版)》 1998年第2期18-18,共1页
关键词 by region Import off motor vehicles in 1997
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Import And Export Of Motor Vehicles In 1996
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《中国汽车(英文版)》 1997年第2期29-29,共1页
关键词 In Import And Export Of motor vehicles In 1996
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Import and Export of Motor Vehicles(Jan. to Jun., 1997)
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《中国汽车(英文版)》 1997年第4期20-20,共1页
关键词 to Jun Import and Export of motor vehicles
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Import and Export of Motor Vehicles Jan. to June, 1998
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《中国汽车(英文版)》 1998年第4期11-11,共1页
关键词 Import and Export of motor vehicles Jan to June
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Catalog of the Published National Standards for Motor Vehicles in 1994
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《中国汽车(英文版)》 1995年第2期8-9,共2页
关键词 GB Catalog of the Published National Standards for motor vehicles in 1994
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Import of Motor Vehicles
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《中国汽车(英文版)》 1998年第3期21-21,共1页
关键词 Import of motor vehicles
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Motor Vehicles Retired from Use (1991-1997)
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《中国汽车(英文版)》 1998年第2期4-4,共1页
关键词 motor vehicles Retired from Use
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