Emissions of nitrogen and phosphorus from various sources into urban waterways cause algal blooms and generally degrade delicate aquatic ecosystems. Perth’s Canning River is a prime example, and yet protecting it from these emissions has been a policy challenge for the last 50 years. A mix of incentives and regulation is needed to improve the cost effectiveness of abatement actions.
The attached study investigated abatement actions for the Canning Catchment. It outlines an approach that can be widely applied to other catchments, and adapted as new technologies for nutrient abatement become available.