Microplastics refer to small pieces of plastic ( less than five millimeters in length) that pollute the environment. They come from manufactured microplastics that are used in cosmetics, clothing, and industrial processes such as in air blasting where microplastics are used to remove rust and paint of machineries, engines, boat hulls, or from the degradation through natural weathering processes of larger plastic products such as water, soda bottles, plastic bags, and fishing nets.

Gonzales, E. (2019, September 24). We eat, drink, and breathe microplastics, but should we get worried? Manila Bulletin, p. C-2.