Snow is melting across northwestern Ontario, unveiling a winter's worth of litter. Social Sharing Posted: Mar 17, 2021 7:43 AM ET | Last Updated: March 17 Discarded PPE, such as a face mask, is making up a larger portion of the litter seen this spring in Thunder Bay, says EcoSuperior.(Andrew Lee/CBC) comments Snow is melting across northwestern Ontario, unveiling a winter's worth of litter. While the unsightly annual event is welcomed by few, this year's litter seems to stick out a little more than before, with much of it being comprised of PPE like masks and gloves. "Maybe we're just noticing those things like masks lying on the ground," said Melissa Davidson, a program coordinator at EcoSuperior.