Impact of battery electric vehicle usage on air quality in three Chinese first-tier cities

作者：Wenjing Lyu, Ying Hu, Liu Jin, Kaizhe Chen, Peng Liu, Junjun Deng, Shaojun Zhang · 发表于：Scientific Reports · 年份：2024 · DOI：10.1038/s41598-023-50745-6 · 被引用次数：74 · 研究领域：Electric Vehicles and Infrastructure、Energy, Environment, and Transportation Policies、Vehicle emissions and performance

Abstract China, the world leader in automobile production and sales, confronts the challenge of transportation emissions, which account for roughly 10% of its total carbon emissions. This study, utilizing real-world vehicle data from three major Chinese cities, assesses the impact of Battery Electric Vehicles (BEVs) on air quality. Our analysis reveals that BEVs, when replacing gasoline vehicles in their operational phase, significantly reduce emissions, with reductions ranging from 8.72 to 85.71 kg of CO 2 per vehicle monthly. The average monthly reduction rate is 9.47%, though this effect is less pronounced during winter. Advanced BEVs, characterized by higher efficiency and newer technology, exhibit greater emission reduction benefits. While private BEVs generally contribute positively to environmental outcomes, taxi BEVs, due to their intensive usage patterns, show less environmental advantage and may sometimes worsen air quality. Looking ahead, we project substantial emission reductions from the replacement of gasoline vehicles with electric alternatives over the next decade. Policymakers are urged to adopt proactive measures, focusing on promoting medium to large electric vehicles and fostering the use of private and ride-hailing electric vehicles.