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. Author manuscript; available in PMC: 2022 Nov 18.
Published in final edited form as: ISPRS Int J Geoinf. 2014 May 20;3(2):713–731. doi: 10.3390/ijgi3020713

Figure 3.

Figure 3.

County level block kriged estimated mean PM2.5 (μg/m3) for the 81 affected counties in non-haze and haze periods. Top Row: Control period between 29 June–1 July designated as non-haze period. Bottom Row: Haze period between 6–8 July.