Large microplastic particles in sediments of tributaries of the River Thames, UK

By Robert Lyons on 15th February 2017

This study is the first to quantify microplastics of any size in river sediments in the UK and links their presence to terrestrial sources including sewage and road marking paints. The study found that many fragments are derived from road marking paints - a previously undescribed source. It also describes efficient methods developed for separating large microplastic particles from sediment and finds that inputs and behaviour of microplastics are varied and complex to predict.