As the people of Toronto flocked to the Lake Ontario waterfront to swim, paddle and generally escape pandemic isolation, Chelsea Rochman's students at the University of Toronto were throwing plastic bottles with GPS trackers into the water. The research team's goal is to track trash that ends up in the lake, to figure out where it accumulates in the water and where it's coming from in the first place. Using information from the tracking bottles, they chose spots to put in Seabins — stationary cleaning machines that suck in water all day and trap any garbage and debris — at marinas along the waterfront. They are emptied daily, and the debris collected in them is examined to ferret out what kinds of trash is getting into the lake.
So small, yet so deadly. Investors force plastic industry to reveal pollution
Factories, trains, ships and trucks spill about 10 trillion of the lentil-sized pellets, or nurdles, used to make all plastic products, into the environment each year — enough to make roughly 15 million plastic bottles. Once in aquatic environments, pellets absorb toxins in the water, becoming poisonous magnets for birds, fish and other animals. Pellet contamination is widespread around B.C.’s Lower Mainland, according to a 2019 study by University of Victoria researchers and the Surfrider Foundation. They’re also a major problem in the Great Lakes and other regions with high concentrations of plastic manufacturing or transportation infrastructure.