0.1 and 1.0 mm, respectively. Before the PECDs, the mass concentrations
of PM2.5 are 16–24% of those of PM10 and 1.7–7.8% of those
of total PM (TSP); after the PECDs, those of PM2.5 were increased to
12–52.5% of PM10 and 8.6–44.1% of total PM, respectively. Sui et al.
also reported that in the bimodal distribution of PM obtained from
PC plants, however, the small and large peaks are formed at 0.11 mm
and 4 mm, respectively [30]. The deficiency of Yi et al.’s work is that
the difference of PM characteristics from CFB and PC coal plantswas
ignored.