船舶污染物排放管控将加严，新国标有望近期出台

Core Points - The Ministry of Ecology and Environment is set to introduce new regulations on ship exhaust smoke density limits and measurement methods to enhance pollution control and management for operating vessels [1] - The draft standard is currently open for public consultation and is expected to be released soon, with the China Classification Society as the responsible unit [1] - The new standard aims to address black smoke emissions caused by improper maintenance of diesel engines and mismatched ship, engine, and propeller configurations [1][5] Group 1: Regulatory Framework - The new standard will apply to vessels operating or moored in waters under the jurisdiction of the Chinese government [1] - The draft standard encourages regions with enforcement capabilities to adopt stricter emission limits, with a recommendation for a Ringelmann smoke density level of 2 as a qualifying standard [5][6] - The implementation of this standard is expected to improve the maintenance levels of vessels and reduce black smoke emissions, thereby enhancing air quality, particularly in port cities [6] Group 2: Current Emission Statistics - As of the end of 2024, there are 110,200 water transport vessels in China, with a total cargo throughput of 9.811 billion tons, reflecting a 4.7% increase from the previous year [1] - In 2023, ship emissions of hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM) were 111,000 tons, 1.6186 million tons, and 64,100 tons, respectively, accounting for 27.4%, 35.7%, and 28.6% of total non-road mobile source emissions [2] - The increase in ship emissions of major air pollutants indicates a rising trend, necessitating stricter control measures [2]