Analysis of SO<sub>2</sub> Pollution Changes of Beijing-Tianjin-Hebei Region over China Based on OMI Observations from 2006 to 2017

<div>Average SO<sub>2</sub> column over the BTH region during 2006–2010 (a) and 2011–2017 (b).</div>

Advances in Meteorology

Figure 6: Analysis of SO<sub>2</sub> Pollution Changes of Beijing-Tianjin-Hebei Region over China Based on OMI Observations from 2006 to 2017 