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Examining the dependence of macroplastic fragmentation on coastal processes (Chesapeake Bay, Maryland).
Rizzo, Marzia; Corbau, Corinne; Lane, Benjamin; Malkin, Sairah Y; Bezzi, Virginia; Vaccaro, Carmela; Nardin, William.
Afiliación
  • Rizzo M; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA; Department of Physics and Earth Sciences, University of Ferrara, Ferrara, Italy.
  • Corbau C; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA; Department of Physics and Earth Sciences, University of Ferrara, Ferrara, Italy. Electronic address: cbc@unife.it.
  • Lane B; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA.
  • Malkin SY; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA.
  • Bezzi V; Department of Physics and Earth Sciences, University of Ferrara, Ferrara, Italy.
  • Vaccaro C; Department of Physics and Earth Sciences, University of Ferrara, Ferrara, Italy.
  • Nardin W; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, USA.
Mar Pollut Bull ; 169: 112510, 2021 Aug.
Article en En | MEDLINE | ID: mdl-34062324
Plastic debris in the coastal environment is subject to complex and poorly characterized weathering processes. To better understand how key environmental factors affect plastic degradation in a coastal zone, we conducted an in situ experiment. We deployed strips of high density polyethylene (HDPE) and polystyrene (PS) in paired coastal areas of contrasting conditions (hydrodynamic activity: erosional or depositional; water depths: subtidal or intertidal). Strips were collected after environmental exposures at 4, 8, and 43 weeks and analyzed for change in mass, algal biofilm growth, and imaged by petrographic and electron microscopy (SEM-EDS). Significant surface erosion was evident on both polymers, and was more rapid and more extensive with PS. Degradation of PS was responsive to intensity of hydrodynamic activity, and was greater at intertidal depths, highlighting the critical role played by photo-oxidation in the coastal zone, and suggesting that algal biofilms may slow degradation by playing a photo-protective role.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Bahías País/Región como asunto: America do norte Idioma: En Revista: Mar Pollut Bull Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Bahías País/Región como asunto: America do norte Idioma: En Revista: Mar Pollut Bull Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido