Abstract：The concentration of organic carbon (OC), elementary carbon (EC) and isotopic composition of total carbon (TC) in airborne particulate and pollution sources were studied which were sampled in Taiyuan, Jincheng, Changzhi and Lucheng city of Shanxi province. By analyzing the velative data of OC/EC and comparing the carbon isotopic composition of TC in airborne particulate and pollution sources, the sources of carbon in airborne particulate in the four cities were discussed. The coal-combustion dust, vehicle exhaust dust, soil dust, urban raised dust and airborne particulate in different functional sites in the four cities were collected in the heating and non-heating period. After pre-treatment, the samples were analyzed by thermal optical carbon analyzer, NC-2500 elemental analyzer and isotope mass spectrometry. The analyzing results of airborne particle and emission sources indicate that the TC of ambient samples in heating period is mainly from coalcombustion dust, while in non-heating period it is mainly from urban dust; coalcombustion dust and vehicle exhaust dust are the main emission sources of TC, and urban dust also has some contribution.
2011, Vol. 32 
