Selected article for: "long distance and significantly differ"
Author: Zander S Venter; Kristin Aunan; Sourangsu Chowdhury; Jos Lelieveld
Title: COVID-19 lockdowns cause global air pollution declines with implications for public health risk
  • Document date: 2020_4_14
    • ID: 33cgz7ob_18
    Snippet: The trends for O3 and PM2.5 are more heterogeneous over space (Fig. 1D , F) and time (Fig. 2E , 135 F) relative to the ubiquitous declines in NO2. For instance, increases in O3 over southern China 136 differ significantly from the decreases observed over the Wuhan province, the epicenter of 137 COVID-19 (Fig. 1D ). We expect this to be a consequence of synoptic redistribution of O3 by 138 atmospheric circulations. Similarly, the local decreases o.....
    Document: The trends for O3 and PM2.5 are more heterogeneous over space (Fig. 1D , F) and time (Fig. 2E , 135 F) relative to the ubiquitous declines in NO2. For instance, increases in O3 over southern China 136 differ significantly from the decreases observed over the Wuhan province, the epicenter of 137 COVID-19 (Fig. 1D ). We expect this to be a consequence of synoptic redistribution of O3 by 138 atmospheric circulations. Similarly, the local decreases over parts of Spain are in contrast to 139 increases observed over eastern Europe. This is not surprising given that O3 is affected by long-140 distance transport as well as non-linear chemical interactions with volatile organic compounds 141 (VOCs) and NOx, mediated by mesoscale and urban canopy weather patterns (12). 142 143

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