THE SEAS OF PLASTIC
Accumulation of marine floating debris originated from highly populated coastal regions
From land to sea, contribution of coastal regions to the 5 gyres and other accumulation zones
Plastic pollution in the oceans represents a major global environmental challenge. At a global scale, man-made debris has been observed to accumulate in remote areas of the ocean in large circulating gyres. The source of this plastic is assumed to be mostly land based, however little is known about the relative contribution of different land based sources to each gyre.
By modelling and tracking the paths of plastic particles from land to sea we can estimate the relative sizes of each gyre. Also the model reveals the relative contributions of the different source regions to each of the gyres. These relationships are visualised here and allow to compare the contribtutions by source and gyre.
Coastal Population Pressure
Plastic Particle Concentration
Dimensionless particles model: the releases and concentration are expressed in percentage of the global marine debris pollution.