Hits:

Indexed by:会议论文

Date of Publication:2015-11-30

Included Journals:EI、Scopus

Abstract:Based on the different emission standards for main atmospheric pollutants emissions from mobile sources, this paper estimated major exhaust emissions of carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbon (HC) and fine particulate matter (PM2.5) from on-road and off-road mobile sources in China for the years 2000-2012. The results showed that: (1) Over the 12-year time period, there had been increased and then decreased. And in 2005, the emissions reached the maximum, 42.33 Mt, and the on-road mobile sources shared more than 80% of the total value. (2) Source contributions to these totals differed significantly, with higher contributions coming from CO and NOx, each accounting for more than 87% of the total emissions. In general, the emissions of CO show a tendency of decreasing as the emissions of NOx tend to increase, in contrast, the emissions of HC and PM2.5 have small change. (3) The motorized and heavy-duty diesel trucks were typically on-road mobile sources, while agricultural machines were the major off-road mobile sources. (4) The distribution of main atmospheric pollutant emissions among regions differed distinctly. The five-top provinces were Shandong, Guangdong, Hebei, Henan and Jiangsu province in 2012. In addition, the emission extensive intensity provinces were from in Bohai economic circle, Yangtze River Delta region and the Pearl River Delta region. In these areas, the highest emission intensity provinces were Shanghai, Beijing and Tianjin. ? 2015 The Japan Society of Mechanical Engineers.