College of Transport and Communications, Shanghai Maritime University, Shanghai 201306, China.
College of Transport and Communications, Shanghai Maritime University, Shanghai 201306, China.
Mar Pollut Bull. 2023 Sep;194(Pt A):115313. doi: 10.1016/j.marpolbul.2023.115313. Epub 2023 Jul 26.
The COVID-19 has had a particularly significant impact on the shipping industry. Using AIS data, a "bottom-up" method was adopted to investigate whether the removal of port-imposed prevention regulations would affect ship activity and ship emissions in Lianyungang Port. The study discovered that, except for passenger ships, the total number of other ships has increased significantly, with tugs, tankers/chemical vessels, ROROs and work boats ranking among the top four. After the regulations were removed, the average normal cruising time per vessel increased from 12.23 to 20.05 h, an increase of 63.94 %, while the average operating time per vessel during slow cruising, maneuvering and hotelling decreased. Meanwhile, the total emissions of air pollutants from vessels have increased by >60 %. Relevant departments need to pay more attention to NO and develop feasible policies to reduce emissions from especially cargo vessels, tankers and chemical vessels.
新冠疫情对航运业产生了重大影响。本研究利用 AIS 数据，采用“自下而上”的方法，调查了港口解除防疫规定是否会影响连云港港的船舶活动和船舶排放。研究发现，除客船外，其他船舶总数显著增加，拖轮、油轮/化学品船、滚装船和工作船位居前四。规定解除后，每艘船舶的平均正常巡航时间从 12.23 小时增加到 20.05 小时，增加了 63.94%，而船舶低速巡航、操纵和停泊时的平均运行时间减少。同时，船舶空气污染物的总排放量增加了>60%。相关部门需要更加关注氮氧化物，并制定可行的政策来减少特别是货船、油轮和化学品船的排放。
