%0 Journal Article
%T Evaluation of the environmental benefits of the enhanced vehicle inspection/maintenance program based on the short transient loaded mode in Guangzhou<br>广州市实施I/M简易瞬态工况检测方法的环境效果分析
%A LI Xiaoling
%A WU Ye
%A YAO Xincan
%A ZHANG Shaojun
%A ZHOU Yu
%A FU Lixin
%A <br>李晓玲
%A 吴烨
%A 姚欣灿
%A 张少君
%A 周昱
%A 傅立新
%J 环境科学学报
%D 2012
%I 
%X The short transient loaded mode (IG195) test can improve the efficiency of identifying high emitters in inspection/maintenance (I/M) programs. This paper was based on the pilot IG195 test data of light-duty gasoline vehicles (LDGV) in Guangzhou from 2007 to 2009. The percentages of high emitters exceeding the cut points for pre- and post-Euro I (including Euro I) vehicles were 20.1% and 17.6%, respectively. Re-inspection test data showed that 76.0% pre-Euro I and 64.7% post-Euro I high emitters could meet the requirement after proper maintenance. The modified MOBILE5 model was used to estimate the emission factors for LDGV. In 2009, the LDGV in Guangzhou emitted 244 thousand tons of CO, 38 thousand tons of HC and 18 thousand tons of NOx. If all of the vehicles which finally failed the IG195 test could be scrapped, the emissions of CO, HC and NOx can be reduced by 42.0 thousand tons, 5.8 thousand tons and 1.5 thousand tons, respectively, which amount to 17.2%, 15.3% and 8.2% of the total LDGV emissions. If all of the vehicles finally failing IG195 could be replaced by Euro IV models that complied with their emission standards, the emissions of CO, HC and NOx could be reduced by 41.2 thousand tons, 5.7 thousand tons and 1.4 thousand tons, which made up 16.9%, 15.0% and 8.0% of the total LDGV emissions, respectively. Controlling the pre-Euro I and Euro I vehicles was the most effective way in achieving emission reduction benefits by the new I/M program. The two vehicle categories together contributed about 90% of the emission reduction for CO and HC, and 85% for NOx in the I/M program.
%K inspection and maintenance(I/M)
%K light-duty gasoline vehicles
%K short transient loaded mode (IG195)
%K vehicle emission
%K MOBILE5 model<br>检查/维护(I/M)
%K 轻型汽油车
%K 简易瞬态工况法
%K 排放
%K MOBILE5模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=4189763B19B8AD45F11202D29AAC8641&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=CA4FD0336C81A37A&sid=74011071555EB4E5&eid=6270DC1B5693DDAF&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=46