天津：高水平建设美丽中国先行区

Core Viewpoint - The Tianjin government is committed to enhancing ecological environment quality and promoting green development, aligning with national policies and strategies for sustainable growth [1][6]. Environmental Quality Improvement - The air quality in Tianjin has shown significant improvement, with PM2.5 annual average concentration at 38.1 micrograms per cubic meter, a decrease of 8% year-on-year. The number of good air quality days increased by 36 days to 268, while heavy pollution days decreased by 5 days to 3 [2]. - The proportion of good quality surface water at national control sections reached 52.8%, with no inferior V class water bodies. The nearshore water quality improved, with 72.6% classified as good, an increase of 1.7 percentage points year-on-year [2]. Collaborative Efforts in Environmental Protection - The government is focusing on collaborative ecological protection, including joint efforts in air pollution control and ecological compensation for upstream and downstream water quality management [3]. - Initiatives include signing agreements to combat environmental crimes and establishing mechanisms for nearshore water quality assurance [3]. Green and Low-Carbon Development - The city is actively reducing coal consumption, with a year-on-year decrease of 194.23 million tons. The infrastructure for renewable energy is expanding, with 52 new energy charging and hydrogen stations established [4]. - The carbon market has maintained a 100% compliance rate for nine consecutive years, with green electricity carbon reduction benefits exceeding 53 million yuan in the past two years [4]. Pollution Prevention and Control - In the blue sky campaign, 206 new enterprises achieved environmental performance ratings of A or B, doubling the previous year. The city also eliminated 66,000 old vehicles and introduced 3,872 new energy non-road mobile machinery [5]. - Water quality management includes targeted strategies for nitrogen control in rivers, with successful case studies in various districts [5]. Ecological Safety and Biodiversity - The government is implementing biodiversity protection strategies, creating multiple biodiversity experience sites, and achieving recognition for ecological initiatives [5]. - An emergency monitoring and early warning system is being enhanced, with a 100% collection rate for waste radioactive sources [5]. Environmental Governance System - The city is improving its environmental governance framework, including a tiered management system for construction projects and conducting extensive inspections of enterprises [6]. - Future plans include promoting coordinated development in the Beijing-Tianjin-Hebei region and continuing efforts to improve ecological quality and achieve high standards in environmental goals [6].