Figure 1

Surface plastic concentration (p m2) on agricultural field (a) “Lehmkaute” (LK) or (b) “Holzbach” (HB) and average microplastic concentration (p kg-1) over entire soil column in agricultural field (c) “Lehmkaute” and (d) “Holzbach” (Overview of sampling sectors and points based on a digital terrain model provided in Supplementary Fig. S1).