We identified four main work tasks performed on the days of sampling: dismantling (i.e., all work tasks involving manual dismantling of the goods), indoor work (i.e., tasks involving handling of goods except dismantling, for example, sorting of incoming and outgoing goods, truck driving, cleaning, supervision of work), outdoor work (e.g., mainly inspection tasks and transportation of goods within the different locations using trucks), and office work (i.e., computer work with no time in the production buildings).