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

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 1180 km of sandy beaches in the Salish Sea had 61 pieces of anthropogenic debris weighing approximately 5 g. The total loading for the entire 1 m wide band is estimated to be 72,000,000 pieces and 5.8 metric tons. Most anthropogenic debris on beaches is generated within the region.

Wallace Davis III, Anne G. Murphy, Marine Pollution Bulletin, Volume 97, Issues 1–2, Pages 169–177, 15 August 2015

The article

 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s