A questionnaire used to obtain the job description
The questionnaire was elaborated according to Okóń [24].
It was composed of the following sections:
■ general information on the work site, work time, tools
and machines used;
■ qualifications required to perform the job at a particular
workpost;
■ work conditions; this section included questions that
allowed to determine the period of time spent in particular
conditions during a working day;
■ physical work performed by employees at a particular
workpost;
■ physical and mental traits necessary to perform successfully
individual tasks (43 traits), including the indication
how far a given trait should be developed to assure good
performance;
Fig. 1. Morphological composition of municipal waste in Poland (%).