说明：  环保部公布了轻型汽车国V排放标准，汽油车的氮氧化物加严25 ，并增加了污染控制新指标颗粒物粒子数量。环保部科技标准司负责人介绍，北京市出于改善区域空气质量的迫切需求，先行制定了北京V阶段标准。
(Ministry of Environmental Protection announced a light vehicle state V emission standards for nitrogen oxides gasoline vehicles tightened 25 , and adds new indicators of particulate matter pollution control the number of particles. Ministry of Environmental Protection and Technology Standards Department, responsible person, to improve regional air quality in Beijing for urgent needs, first formulated the Beijing stage V standards.)