From macroplastic to microplastic: Degradation of high‐density polyethylene, polypropylene, and polystyrene in a salt marsh habitat
Tóm tắt
As part of the degradation process, it is believed that most plastic debris becomes brittle over time, fragmenting into progressively smaller particles. The smallest of these particles, known as microplastics, have been receiving increased attention because of the hazards they present to wildlife. To understand the process of plastic degradation in an intertidal salt marsh habitat, strips (15.2 cm × 2.5 cm) of high‐density polyethylene, polypropylene, and extruded polystyrene were field‐deployed in June 2014 and monitored for biological succession, weight, surface area, ultraviolet (UV) transmittance, and fragmentation. Subsets of strips were collected after 4 wk, 8 wk, 16 wk, and 32 wk. After 4 wk, biofilm had developed on all 3 polymers with evidence of grazing periwinkles (
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Tài liệu tham khảo
US Environmental Protection Agency.2015. Advancing sustainable materials management: 2013 fact sheet. EPA 530‐R‐15‐003. Washington DC.
AllsoppM WaltersA SantilloD JohnstonP.2006. Plastic debris in the world's oceans. Greenpeace Amsterdam The Netherlands.
Kershaw P, 2011, Plastic debris in the ocean, UNEP Year Book, 20
WennerEL HollandAF SangerDM.1998. Assessing short‐term variability in dissolved oxygen and other water quality variables in shallow estuarine habitats.Ocean Community Conference '98 Proceedings Vol2. Marine Technology Society Baltimore MD USA pp802–806.
Ross SW., 2003, The relative value of different estuarine nursery areas in North Carolina for transient juvenile marine fishes, Fish Bull, 101, 384
AndradyAL.2003.Plastics and the Environment. John Wiley & Sons Hoboken NJ USA.
WeldenNAC.2015. Microplastic pollution in the Clyde Sea area: A study using the indicator speciesNephrops norvegicus. PhD thesis. University of Glasgow Glasgow Scotland.
Hamilton PV., 1976, Predation on Littorina irrorata (Mollusca: Gastropoda) by Callinectes sapidus (Crustacea: Portunidae), Bull Mar Sci, 26, 403
Tucker AD, 1995, Resource partitioning by the estuarine turtle Malaclemys terrapin: Trophic, spatial, and temporal foraging constraints, Herpetologica, 51, 167