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| Comparative analysis on emission factors of carbonaceous components in PM2.5 and PM10 from domestic fuels combustion |
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Abstract PM10 and PM2.5 emitted from crop waste (JG), wood (XC), honeycomb coal (FW) and raw coal (KM) burning were collected through a dilution sampling system. Carbonaceous components in what are they were analyzed. Results showed that the emission factors (EFs) of particles and carbon components were influenced by fuel types. Fine particles were the most common particles, with PM2.5/PM10 ratios varying between 0.7~0.9. KM held the highest EFs of particles. They were 9.837g/kg and 11.929g/kg for PM2.5 and PM10 which were 12.6 and 13.7 times higher than FW, respectively. The EFs of particles for JG and XC were in the range of 7.359g/kg~10.444g/kg, slightly lower than those of KM. The EFs of OC were highest for KM (5.29 and 5.19g/kg for PM2.5 and PM10). The highest EFs of EC were in XC (1.065 and 1.126g/kg of PM2.5 and PM10) which were 300 and 10 times of those in FW and JG. The carbonaceous components accounted for 40%~60% of particles emitted from KM, XC and JG burning which were three times higher than FW. The OC/EC ratios for XC and KM varied from 3 to 6 and the ratios were up to 30~50 for JG and FW.
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Received: 17 February 2014
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