生态环境部发布《2024中国生态环境状况公报》

Core Viewpoint - The 2024 China Ecological Environment Status Bulletin indicates continuous improvement in ecological environment quality and stable environmental safety across the country [1] Air Quality - The average concentration of PM2.5 in cities at or above the prefecture level reached 29.3 micrograms per cubic meter, a decrease of 2.7% from 2023 - The proportion of days with good air quality was 87.2%, an increase of 1.7 percentage points from 2023 - The proportion of heavily polluted days was 0.9%, a decrease of 0.7 percentage points from 2023 - The average PM2.5 concentrations in the Beijing-Tianjin-Hebei region, Yangtze River Delta, and Fenwei Plain decreased by 0.9%, 0.9%, and 4.8% respectively compared to 2023 [2] Surface Water Quality - The proportion of surface water quality in categories I to III was 90.4%, an increase of 1.0 percentage points from 2023 - The proportion of water quality in category V or worse was 0.6%, a decrease of 0.1 percentage points from 2023 - Among 210 key lakes and reservoirs, the proportion of those with good water quality was 77.1%, an increase of 2.5 percentage points from 2023 - The water quality in major river basins such as the Yangtze and Yellow Rivers remained stable at category II for several consecutive years [3] Marine Water Quality - The proportion of coastal waters meeting Class I standards in summer was 97.7%, a decrease of 0.2 percentage points from 2023 - The overall quality of nearshore marine waters remained stable, with 83.7% classified as good (Class I and II) [4] Soil Environment - The overall heavy metal content in key soil risk monitoring points showed a declining trend, indicating initial control over soil pollution - The safety utilization rate of contaminated arable land reached 92% - The rate of rural domestic sewage treatment exceeded 45% [5] Natural Ecology - The Ecological Quality Index (EQI) value was 59.95, indicating a "Category II" ecological quality, reflecting rich biodiversity and high coverage of natural ecosystems - The forest coverage rate exceeded 25% [6] Noise Environment - The daytime and nighttime compliance rates for noise environment in cities at or above the prefecture level were 95.8% and 88.2% respectively, with a slight decrease in daytime compliance [7] Nuclear and Radiation Safety - No significant nuclear or radiation incidents occurred, with the annual occurrence rate of radiation accidents remaining below one per ten thousand sources - The overall radiation environment quality was good [8] Climate Change Response - The proportion of coal consumption in total energy consumption was 53.2%, a decrease of 1.6 percentage points from 2023 - The share of clean energy sources in total energy consumption rose to 28.6%, an increase of 2.2 percentage points from 2023 - The cumulative transaction volume of carbon emission rights reached 630 million tons, with a total transaction value of 43.033 billion yuan [9] Solid Waste and New Pollutants Management - The construction of "waste-free cities" is being advanced, with 113+8 cities and regions accelerating the implementation of related tasks - New pollutant management initiatives are being launched in key river basins, focusing on specific pollutants and industries [10]