The dataset represents the transportation service of 1 ton by a tanker for liquid goods (approximately loading 5000 DWT) over a distance of 1 kilometer in China's coastal/marine areas. Fuel consumption is calculated based on the ship's load capacity, main engine power, and operating speed. The main emissions (CO2, NOx, SOx, PM, NMVOC, CO, CH4, N2O, etc.) are calculated based on mirine vessel fuel consumption and relevant standards.