https://saltwatersoldiers.net/2013/10/02/plastic-seas-from-water-bottles-to-cigarette-butts-it-all-becomes-tiny-particles-and-its-the-tiny-particles-that-are-most-deadly/
Plastic Seas: From Water Bottles to Cigarette Butts, It All Becomes Tiny Particles, and It's the Tiny Particles that are Most Deadly