Nylon cooking bags, plastic-lined cups can release nanoparticles into liquids

Nylon cooking bags and plastic-lined cardboard cups are conveniences many people rely on, but a new study suggests that they are an underappreciated source of nanoparticles. They report that the plastic in these products release trillions of nanometer-sized particles into each liter of water that they come in contact with. That sounds like a lot, but the team notes that these levels are under the regulatory limits for consumption.