Table 1 Policy intervention period and contents studied in this research
Intervention period | Policy name | Content of policy intervention |
|---|---|---|
From June 2014 to December 2017 | Key Work of Joint Prevention and Control for Air Pollution in Beijing-Tianjin-Hebei and Surrounding Areas in 2014 | Establish an expert committee for regional air pollution prevention and control; Strengthen regional cooperation, jointly manage key pollution sources, and simultaneously solve common problems; Study and formulate public policies; take the lead in implementing the particular emission limit of national air pollutants in the Beijing-Tianjin-Hebei region; Guarantee the air quality of APEC conferences in 2014 |
From October 2017 to March 2018 | The Action Plan for Air Pollution Comprehensive Control in Beijing-Tianjin-Hebei and Its Surrounding Areas in Autumn and Winter 2017–2018 | Multiple measures were implemented to strengthen the prevention and control of air pollution in winter with the core aim of improving regional ambient air quality and reducing heavily polluted weather. These measures were designed to reduce pollution emissions across the region. To ensure their effectiveness, several inspection teams were dispatched to Beijing, Tianjin, Hebei and surrounding areas for regular inspections |