long ton

Mahalakshmi Mannar

In the context of life cycle analysis (LCA) and emissions calculations, the term tn.LG is not a standard recognized unit in the literature. However, a few possible meanings can be assumed based on the context and specific applications in certain methodologies or organizations.

In emissions calculations during a product's or service's life cycle, various material flows (raw materials, water, air, waste) may be expressed in tonnes (tn) to standardize the quantities used or emitted in different phases of the life cycle.

Thank you so much, Professor Dragan Ugrinov.

As Professor Dragan Ugrinov mentioned, tn.lg is short form representing long tons in Simapro Units while calculating life cycle emissions. Long ton is imperial unit of ton that is equal to 1016.05kg or 2240 pounds. Short tons are 2000 pounds or 907.2 kg, and a tonne is 2205 pounds or 1000 kg.

Could you clarify where you encountered this unit (e.g., report, industry)? For general emissions, common units are tonnes (tn), kg. For satellite such as Sentinel 5 unit is mol/m2.

Professor Amir Ghahremanlou, I came across those units while calculating emissions of manufacturing steel at the plants, with a huge quantity of materials given as input.