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. 2020 Nov 25;246:118103. doi: 10.1016/j.atmosenv.2020.118103

Fig. 9.

Fig. 9

(a) Simulated surface average PM2.5 concentrations and weather elements in NCP in CTL00–CTL20. (b–c) Frequency distributions of surface wind speed and wind direction in CTL00–CTL20.