环境质量持续改善 湖南纵深推进污染防治攻坚
Zhong Guo Xin Wen Wang·2025-12-09 01:11

Core Viewpoint - Hunan Province has made significant progress in ecological and environmental protection, achieving notable improvements in air and water quality, as well as soil pollution prevention measures, as part of its "14th Five-Year Plan" initiatives [1][2][3] Group 1: Air Quality Improvement - As of January to November 2025, Hunan's PM2.5 concentration was 31.8 micrograms per cubic meter, a year-on-year decrease of 4.2%, with an air quality good rate of 92.2% [2] - The province has implemented the "Guarding Blue Sky" action plan and various policies to combat air pollution, providing a regulatory framework for air quality improvement [2] - Hunan has eliminated 39,761 diesel vehicles and 27,624 old machinery since 2025, while the number of new energy vehicles has increased by 48.59% [2] Group 2: Water Quality Enhancement - By the end of 2024, the average PM2.5 concentration in Hunan is projected to be 36.1 micrograms per cubic meter, a 12.6% decrease from 2019, with a water quality excellent rate of 98.6% for national monitoring sections [1] - The total phosphorus concentration in Dongting Lake has decreased by 13.6% since 2019, with key lakes showing consistent improvements in water quality [1][2] - Hunan has completed the remediation of 247 urban black and odorous water bodies and has closed or relocated 289 heavy chemical enterprises along the Xiangjiang River [1] Group 3: Soil and Groundwater Protection - Hunan has strengthened soil pollution prevention and control measures, achieving a stable safety utilization rate of contaminated farmland at over 93% [3] - The province has initiated comprehensive investigations into heavy metal pollution sources in agricultural land, completing assessments in 27 key counties [3] - The "Beautiful Countryside Construction Work Plan" has been issued, with 20% of the province's rural areas now recognized as beautiful countryside [3]