School of Economics and Management, China University of Petroleum East China, Qingdao, 266580, China.
Environ Sci Pollut Res Int. 2024 Aug;31(37):49481-49497. doi: 10.1007/s11356-024-34480-7. Epub 2024 Jul 30.
The pollutant emissions of diesel-powered heavy-duty trucks (HDTs) seriously damage the air quality. The promotion of hydrogen fuel cell HDTs through purchase subsidy policy to reduce emissions has become an important approach to control air pollution. This study focuses on the impact of hydrogen fuel cell HDT purchase subsidies on air quality in the context of China, covering the panel data of 31 Chinese cities from 2014 to 2021 and applying a two-way fixed effects model to analyze the contribution of purchase subsidies and hydrogen refueling station construction subsidies to air quality. Results show that (1) the increase in purchase subsidies could improve the air quality by around 6.1% and there is a lag effect. (2) Purchase subsidies make a larger contribution to air quality compared with construction subsidies. (3) Purchase subsidies can improve air quality by reducing carbon emissions in transport industry. In sight of these results, policy makers should emphasize the implementation of purchase subsidies and hydrogen refueling station construction subsidies and stimulate manufacturers to improve the performance of hydrogen fuel cell so as to contribute more to the environment.
柴油重型卡车（HDT）的污染物排放严重损害空气质量。通过购买补贴政策推广氢燃料电池 HDT 以减少排放已成为控制空气污染的重要途径。本研究聚焦于在中国背景下，氢燃料电池 HDT 购买补贴对空气质量的影响，涵盖了 2014 年至 2021 年中国 31 个城市的面板数据，并采用双向固定效应模型分析购买补贴和加氢站建设补贴对空气质量的贡献。结果表明：（1）购买补贴的增加可以使空气质量提高约 6.1%，并且存在滞后效应。（2）与建设补贴相比，购买补贴对空气质量的贡献更大。（3）购买补贴可以通过减少运输业的碳排放来改善空气质量。鉴于这些结果，政策制定者应强调实施购买补贴和加氢站建设补贴，并激励制造商提高氢燃料电池的性能，从而为环境做出更大贡献。
