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Plastic input into the oceans

Plastic input into the oceans

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Uploaded 14 Jun 2016 by Tom Skarning
Year: 2016
From collection: Marine Litter Vital Graphics
Author: GRID-Arendal and Maphoto/Riccardo Pravettoni
Description:
Despite knowledge of the role played by rivers, there are no global estimates of the amount of man-made debris reaching the ocean at river mouths. Therefore, of the estimated 4.8 to 12.7 million tonnes of litter which enter the marine environment in 2010 from land-based sources within a 50 km-wide coastal zone (Jambeck et al., 2015), the proportion delivered by rivers is unknown. Debris originating more than 50 km inland from the coast would also need to be added to the figures above. The quantity and composition of anthropogenic debris delivered by a particular river also depends on the intensity and character of the socio-economic activities and population density in the river basin. The implementation of environmental protection and waste treatment measures may help to reduce the leakage of debris. The distribution and extent of impervious surfaces (built-up areas) in watersheds has been used as a proxy for the input of plastic debris through watercourses, as it is directly re ...
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Tags:
  • Most common and visible litter items in beaches
  • Plasticized animal species - Entangled
  • Preventing is better  than cleaning up
  • Natural processes aecting the distribution and fate of plastics
  • How much plastic is estimated to be in the oceans and where it may be
  • The impact of plastic pollution on  oceans is at least $8 bn per year
  • How much plastic waste is produced worldwide
  • How plastic moves from the economy to the environment