Fig. 2: Concentration of total microplastics and microbeads in channel bed sediments.
From: Microplastic contamination of river beds significantly reduced by catchment-wide flooding
a–d, Pre- (a and c) and post-flooding (b and d) concentrations of total microplastics (a and b) and microbeads (c and d) at all 40 bed sediment sampling sites in the Irwell and Mersey catchments. e, Mean daily discharge record for the River Irwell at Adelphi Weir. Note that this does not include the Irk and Medlock catchments. AOD, above ordnance datum.
