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I use EcoInvent 3.7, and in the process: "transport, freight, lorry 16-32 metric ton, EURO6 | transport, freight, lorry 16-32 metric ton, EURO6 | Cutoff, S" the ozone depletion category is surprisingly impactful. I tracked the impactful emissions to Methane, bromotrifluoro-, Halon 1301. I tracked the chemical through the unit sub-processes to see if i could find the source, but it appeared in almost all processes - production of the lorry, maintenance of the lorry, production of diesel, and road maintenance. 

What is this danger chemical, and why does it appear so frequently in this process?

Thank you for your time.

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In a similar unit process system, you see this:

an emission of oil and gas production.