Analysis of emission characteristics associated with vessel activities states in port waters

• Published in: Marine pollution bulletin 2024-05, Vol.202, p.116329-116329, Article 116329
• Main Authors: Gao, Xinjia, Dai, Wei, Yu, Qifeng
• Format: Article
• Language: English
• Subjects: Air Pollutants - analysis; AIS data; carbon dioxide; Carbon Dioxide - analysis; China; Emission reduction; Environmental Monitoring; estuaries; Gas pollution; marine pollution; oils; Shanghai Port; Ship activity; Ship emission characteristics; Ships; Sulfur Dioxide - analysis; Yangtze River
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2024.116329

This study investigates AIS data from March 2019 to February 2020 in Shanghai Port waters. The ship activities of berthing, waiting, and ingress/egress are extracted in detail to elucidate the emission characteristics of ships in Shanghai Port, differentiating emissions patterns across various ship activity. The findings reveal that the top three pollutants within Shanghai Port are CO2, NOX, and SO2. Container ships have the highest emissions, followed by bulk carriers. Berthed container ships and oil tankers exhibit the highest emission. Waiting container ships emit the most, followed by oil tankers and bulk carriers. Among ships entering and leaving the port, low-speed navigation produces the most emissions, followed by maneuvering and steady-speed navigation. Emission hotspots include the Yangtze River Estuary Anchorage and the main navigation channel into and out of the port. This study offers robust data support for an in-depth understanding and evaluation of ship emission characteristics in Shanghai Port. •This study analyzes AIS data from Shanghai Port, covering March 2019 to February 2020, with a focus on ship activities.•CO2 was the dominant pollutant, followed by NOX and SO2. Container ships were the major contributors to emissions.•Container ships have the highest emissions, followed by bulk carriers, while oil tankers and others emit less.•Low-speed navigation produced the highest emissions, followed by maneuvering and normal-speed navigation.•Emission hotspots include the Yangtze River Estuary Anchorage, Luhuashan Anchorage, and the main navigation channel.