随着国民经济的持续高速发展和居民生活水平的提高，机动车保有量大幅增长，道路交通排放已经成为我国城市区域大气污染的主要来源。电动汽车的发展可以有效缓解交通排放带来的大气污染和健康问题，但大规模的电动汽车接入电网会对电网运营造成影响，并将排放转移到电力生产部门，进而改变已有的大气污染风险格局，给大气污染风险管理带来挑战。在我国城市大气污染引发的环境和健康问题日益凸显的背景下，本项目拟以城市电动汽车的规模化发展对区域大气污染健康风险的影响为研究对象，综合应用充电行为模式调研、电力系统时序运行模拟、污染源排放清单、空气质量模型和环境流行病学研究方法，建立一套系统评估城市电动汽车对区域电力系统和大气污染风险影响的科学方法，并在南京市开展案例研究，评估电动汽车政策对区域风电利用和大气污染风险的影响，为优化城市电动汽车的发展决策提供科学依据和政策建议。

With sustained and rapid improvement of economy and living standards, vehicle population has soared during the past decades and traffic emissions have become the major source of urban air pollution. The development of electric vehicles can effectively alleviate the traffic related air pollution and health problems. However, large-scale connection of electric vehicles would affect the operation of power grid, and might shift emissions from transportation sector to power sector. With increasingly prominent environmental and health problems caused by air pollution in Chinese cities, this study intends to investigate the environmental and health benefits of large-scale development of electric vehicles. We comprehensively apply charging behavior survey, power system operation data and air pollutant emissions inventory to evaluate the impact of electric vehicles on emissions from transportation and power sectors and their spatial and temporal distributions. Combined with air quality simulation and health risk analysis, we would establish a scientific method which can systematically evaluate the impacts of electric vehicles on regional power grid, air quality and public health. This approach will be applied to Nanjing to assess the co-effects of electric vehicles on regional wind energy use and public health to provide a scientific basis for optimizing policies of electric vehicles development.