Laundry sheets are a popular and convenient way to do laundry.

These sheets are used in place of traditional liquid or powder detergent and can be simply tossed into the washing machine. However, what many people don't know is that these sheets are actually a major contributor to plastic pollution in our oceans.

Laundry sheets contain a type of plastic called polyethylene terephthalate (PET), which is commonly used in water bottles and other plastic products. When these sheets are used in the washing machine, they release small plastic fibers into the water. These fibers can easily pass through wastewater treatment plants and end up in our rivers and oceans.

Polyvinyl alcohol (PVA) is another type of plastic that is sometimes used in laundry sheets. PVA is a water-soluble polymer that can be used to create thin, clear films. In laundry sheets, PVA is used as a binder to hold the active ingredients together.

While PVA is not as commonly used in laundry sheets as PET, it is still a...