船舶大气污染防治

Search documents
船舶大气污染已成为关键挑战之一,如何深化船舶大气污染物防治?
Zhong Guo Huan Jing Bao· 2025-08-12 00:23
Core Viewpoint - The article emphasizes the urgent need for enhanced air pollution control measures in China's shipping industry, particularly focusing on the significant contributions of ship emissions to overall air pollution and the challenges posed by aging vessels and outdated emission standards [1][2][3]. Group 1: Current Situation of Ship Emissions - Ship emissions in China are substantial, with nitrogen oxides (NOx) emissions exceeding 1.6 million tons in 2023, accounting for approximately 17% of total mobile source NOx emissions, primarily concentrated in the Yangtze River basin [2]. - The global shipping industry emits around 1 billion tons of greenhouse gases annually, representing over 10% of total emissions from the transportation sector [2]. - The aging fleet is a critical issue, with an average ship age of over 15 years in the Yangtze River basin, and 30% of vessels exceeding 20 years, which is above the international warning line of 12 years [2]. Group 2: Challenges in Emission Standards - Current emission standards for ship engines in China are lagging behind international benchmarks set by the EU and the US, indicating a need for modernization [3]. Group 3: Recommendations for Improvement - The industry should enhance the energy structure of ships by implementing policies and financial incentives to phase out older vessels and increase the use of clean energy in new builds [4]. - There is a need to accelerate the update of ship emission standards to align with international norms, including stricter limits on particulate matter and nitrogen oxides, and the introduction of new monitoring technologies [4]. - Improving the regulatory framework for ship emissions is essential, which includes establishing a closed-loop system for monitoring, controlling, and managing emissions, as well as enhancing regional cooperation and information sharing [4].