修订后的空气质量标准即将亮相 污染物浓度限值有所收严

Group 1 - The revised air quality standards have tightened the concentration limits for PM2.5, sulfur dioxide, and nitrogen dioxide, with the annual PM2.5 limit reduced from 35 micrograms per cubic meter to 25 micrograms per cubic meter [3] - The implementation of the new standards will be phased to minimize the impact on economic and social development, ensuring a smooth transition [3] - The tightening of standards is expected to promote the development of new energy vehicles and clean energy, facilitating a green and low-carbon transformation in industries, energy, and transportation [3] Group 2 - The ecological environment department emphasizes that the new standards should not simply replicate the strictest international levels, but must consider factors such as spatial layout, industrial structure, and resource endowment [3] - The current coal-dominated energy structure in China is expected to change slowly in the short term, and the country aims to reach a level of development comparable to that of medium-developed countries by 2035, where PM2.5 limits are also around 25 micrograms per cubic meter [3]