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Title of article :
Tracking the sources and sinks of local marine debris in Hawai‘i
Author/Authors :
Carson، نويسنده , , Henry S. and Lamson، نويسنده , , Megan R. and Nakashima، نويسنده , , Davis and Toloumu، نويسنده , , Derek and Hafner، نويسنده , , Jan and Maximenko، نويسنده , , Nikolai and McDermid، نويسنده , , Karla J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
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Abstract :
Plastic pollution has biological, chemical, and physical effects on marine environments and economic effects on coastal communities. These effects are acute on southeastern Hawai‘i Island, where volunteers remove 16 metric tons of debris annually from a 15 km coastline. Although the majority is foreign-origin, a portion is locally-generated. We used floating debris-retention booms in two urban waterways to measure the input of debris from Hilo, the island’s largest community, and released wooden drifters in nearby coastal waters to track the fate of that debris. In 205 days, 30 kilograms of debris (73.6% plastic) were retained from two watersheds comprising 10.2% of Hilo’s developed land area. Of 851 wooden drifters released offshore of Hilo in four events, 23.3% were recovered locally, 1.4% at distant locations, and 6.5% on other islands. Comparisons with modeled surface currents and wind were mixed, indicating the importance of nearshore and tidal dynamics not included in the model. This study demonstrated that local pollutants can be retained nearby, contribute to the island’s debris-accumulation area, and quickly contaminate other islands.
Keywords :
Ocean models , Retention booms , sources , Pathways , Hawaii , Marine debris , Drifters , Plastics , Waste Disposal
Journal title :
Marine Environmental Research
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