Exponentially increasing microplastic accumulation in an urban estuary: insights from the Narragansett Bay, Rhode Island seafloor.

Many studies have shown that organic pollutants, heavy metals, and other contaminants in Narragansett Bay display a decreasing spatial gradient from the head of the Bay to the mouth, and an increasing trend through time until mitigation measures were implemented (Bricker 1993 ; Goldberg et al. 1977 ; Nixon and Fulweiler 2012 ).

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