Many household products contain ingredients to protect them against sun damage. These UV filters are found in plastics, paints and textiles, as well as personal care products such as sunscreens and moisturizers. UV filters are entering the aquatic environment in rivers, lakes and oceans. Consider for a moment a beach goer swimming in the ocean or rain washing over plastic playground equipment and running into a stormwater drain—either directly or indirectly, UV filters end up making their way to a waterway.
source https://phys.org/news/2021-02-coral-declineis-sunscreen-scapegoat.html
