北京大气四项主要污染物持续稳定达标

Group 1 - The average concentration of fine particulate matter in Beijing reached 28.5 micrograms per cubic meter in the first half of the year, a year-on-year decrease of 17.4%, marking the best historical level for the same period [1] - Since the 18th National Congress, Beijing has adhered to the "Two Mountains" concept, achieving a 66% reduction in annual average concentration of fine particulate matter from 89.5 micrograms per cubic meter in 2013 to 30.5 micrograms per cubic meter in 2024 [1] - The city has stabilized four major air pollutants to meet the national air quality secondary standard [1] Group 2 - Beijing has dynamically eliminated inferior Class V water bodies and urban black and odorous water bodies, with groundwater levels in plain areas rising for nine consecutive years [1] - The city has implemented two rounds of afforestation projects since 2012, adding over 1,600 square kilometers of green space, increasing forest coverage from 38.6% to 44.95% [1] - The number of parks in the city has reached 1,100, allowing residents to connect with nature close to home [1] Group 3 - The proportion of green electricity in Beijing's total electricity consumption has reached 29.3%, an increase of 13 percentage points since 2020, with energy consumption largely achieving coal-free status [2] - The number of new energy vehicles in Beijing has exceeded 1 million, and the total operating mileage of urban rail transit has reached 879 kilometers [2] - The proportion of green travel in the central urban area reached 75.7% in the first half of this year [2]