Fig. 2.
Time average map of Black carbon surface mass concentration monthly 0.5 × 0.625 deg. [MERRA-2 Model M2TMNXAER v 5.12.4] µg m−3 at three different situations a Normal Days, b Lockdown 1.0, 2.0, 3.0, & 4.0, and c unlock down 1.0
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