Table 1.

Annual and seasonal averaged PM_2.5 concentration (μg/m³) of ground observations, KED, WRF-Chem and data fusion at monitoring sites.

	Winter	Spring	Summer	Autumn	Annual
N of OBS	364	360	359	360	365
$\overline{{\mathit{\text{OBS}}}_{(m)}}$	138.3	74.6	68.3	83.5	90.9
$\overline{{\mathit{\text{KED}}}_{(m)}}$	136.9	74.2	68.0	83.0	90.3
$\overline{{\mathit{\text{WRF}}}_{(m)}}$	165.4	95.8	108.3	118.0	121.6
$\overline{{\mathit{\text{Fusion}}}_{(m)}}$	138.3	74.5	68.4	83.6	91.0