Pollution due to urbanization

Model characteristics

  • Model name: MARINA-Multi
  • Version: Global-1.0
  • Application: Global
  • Scales: sub-basins and annual
  • Period: 2010-2100
  • Pollutants: nitrogen, phosphorus, triclosan, Cryptosporidium, and microplastics
  • Sources: point (sewage and open defecation)
  • Main inputs: population with the sewage connections, removal efficiencies, excretion consumption rates of pollutants per capita
  • Main outputs: inputs of multiple pollutants to rivers by source and sub-basin

Modelling approach

Figure 1: Conceptual framework of the model application to the world (Strokal et al., 2021)
Figure 1: Conceptual framework of the model application to the world (Strokal et al., 2021)

Model outputs (example)

Figure 2: Changes in river pollution between 2010 and 2050 according to an optimistic scenario that assumed the implementation of advanced technologies to treat wastewater and avoid open defecation (%). Strokal et al., (2021)
Figure 2: Changes in river pollution between 2010 and 2050 according to an optimistic scenario that assumed the implementation of advanced technologies to treat wastewater and avoid open defecation (%). Strokal et al., (2021)