Fig. 2
Dose–distance relationship in Fig. 1, EFSA [1]. “Digitised data from Fig. 3 of Lang et al. (2015) [35] relating dose of pollen counted per cm 2 of nettle leaf to the distance of the nettle plant from the edge of the nearest maize crop plant. Data plotted on double logarithmic axes to match scaling adopted by Hofmann et al. (2014) [2]. Lines shown on figure are AB: regression line of best fit; CD: dose–distance relationship of Hofmann et al. (2014) [2] as used in scenario DC of EFSA (2015) [4]; EF: dose-distance-relationship of Hofmann et al. (2014) [2] reduced by multiplicative product, 0.396, of two exposure factors estimated in EFSA (2015) [4], corresponding to scenario MR.” EFSA [1]. The original dose–distance relationship for the ‘most realistic’ scenario in EFSA [4] has been calculated using a factor of 0.0376 and not 0.396 as stated in EFSA 2016 [1]. The correct line (red line) is given here as approximately ten times lower than the level given in EFSA [1]; (EF line). Further, we included the 95% confidence boundaries mentioned by Lang et al. [35]. Both the corrected line and the confidence boundaries from Lang et al.’s study demonstrate the underestimation of exposure risk in the EFSA Panel’s ‘most realistic’ scenario