“…Likewise, Massas et al [16] linked air traffic with possible emissions of Cu, Pb, Zn, and, to a limited extent, Ni. Brtnický et al [17], in a study dealing with soil contamination in the vicinity of the airport, related air traffic mainly to Zn contamination, but also mentioned contamination caused by Co and Cr, which were not, however, monitored in this study. Further research on this issue is needed for a more precise definition of air traffic-emitted elements causing soil contamination or pollution because, in most of the mentioned studies, the results may be misrepresented by car traffic.…”