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Mar Pollut Bull. 2015 Aug 15;97(1-2):169-177. doi: 10.1016/j.marpolbul.2015.06.019. Epub 2015 Jun 19.

Plastic in surface waters of the Inside Passage and beaches of the Salish Sea in Washington State.

Author information

1
Retired Director of Quality, Leviton Manufacturing, United States. Electronic address: wallydavis3@gmail.com.
2
Retired Director, Port Townsend Marine Science Center, United States.

Abstract

We summarize results of two independent studies on plastic pollution in the marine environment that overlap in time and space. One study evaluated the abundance of anthropogenic debris on 37 sandy beaches bordering the Salish Sea in Washington State while the other characterized plastic debris in surface waters of the Salish Sea and the Inside Passage to Skagway, Alaska. Both studies concluded that foam, primarily expanded polystyrene was the dominant pollutant. Plastic was found in surface waters the full length of the Inside Passage but was concentrated near harbors. At the wrack line, an average square meter of Washington's 1180km of sandy beaches in the Salish Sea had 61 pieces of anthropogenic debris weighing approximately 5g. The total loading for the entire 1m wide band is estimated to be 72,000,000 pieces and 5.8metric tons. Most anthropogenic debris on beaches is generated within the region.

KEYWORDS:

Citizen science; Inside Passage; Microplastic; Salish Sea; Sandy beaches; Surface water

PMID:
26099788
DOI:
10.1016/j.marpolbul.2015.06.019
[Indexed for MEDLINE]

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