While walking along the coast, one can come across broken bottles, plastic toys and food wrappers among others, but cigarette butts appear to be the most common.
In fact, cigarette butts are a prevalent, lasting, and toxic form of marine debris, that can potentially harm marine organisms and their environments. Cigarette butts initially reach the waterways through their improper disposal on beaches, rivers and land and are transported to the coats by rainwater.
Moreover, the 2018 International...
https://safety4sea.com/cigarette-butts-the-most-prevalent-form-of-ocean-litter/