Table 1.

A list of the three major sources of marine pollution and examples of the key types of pollution from each

source considered in our future scenarios. * denotes a pollutant that is outside the scope of this paper

	Pollutant Source
Pollutant Type	Land-based industry	Municipal-based	Sea-based industry
Sediment	Sediment from mining*, agriculture, or forestry	Sediment from coastal development	Sediment disruptions (e.g. dredging and aquaculture)
Nutrient	Nutrients (e.g. nitrogen, phosphorous, iron) from agriculture, forestry, livestock	Nutrients (e.g. nitrogen and phosphorous) from wastewater, stormwater	Increase in nutrients (e.g. nitrogen and phosphorous) from aquaculture
Plastics	Plastics from packaging and transport of products	Plastics from urban stormwater, and litter escaped from waste management systems	Abandoned, lost, or discarded fishing gear from vessels.Plastics from aquaculture, shipping and offshore structures
Pharmaceuticals	Pharmaceuticals used in animal agriculture	Pharmaceuticals in wastewater from household waste, and medical facilities	Pharmaceuticals (e.g. anti-biotics and antiparasitic drugs) from aquaculture
Chemicals	Chemicals, POPs and pesticides from agriculture, mining, industrial wastewater and runoff	Petroleum and household chemicals from wastewater, and stormwater outlets	Petroleum and chemicals from shipping and offshore structures
Sound			Motor noise, seismic devices and sound propagating devices
Light*		Light from coastal development*	Light from offshore structures and marine transport*
Water*		Fresh water/ heated water* (e.g. melted sea ice, shifts in ocean currents)
Nuclear Waste*	Nuclear waste from power stations*