fig2

Figure 2. Estimated concentrations of nanoplastic (PSNP/mg DW) in the biofilm samples collected across the 14 stations (× 3 sampling points) visited at Lake St-Pierre. Codes on the X-axis represent station location where A = archipelago, N = north shore, S = south shore. Colors represent water masses, where brown for the northern water body, green for the central water body, and lilac for the southern water body. The solid black line represents the median concentration, and the black dot represents the mean concentration. Stations are presented from upstream to downstream, with station A1 being the most upstream station. Distances in km from station A1 are also indicated. PSNP: Polystyrene-like nanoplastics; DW: dry weight.