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

<div>Long trend of SO<sub>2</sub> column over the BTH region during two periods, 2006–2007 and 2007–2017.</div>

Advances in Meteorology

Figure 8: Analysis of SO<sub>2</sub> Pollution Changes of Beijing-Tianjin-Hebei Region over China Based on OMI Observations from 2006 to 2017 