Editing Swan River (Western Australia) (section)

===Environmental issues===
The river has been used for the disposal of all kinds of waste. Even well into the 1970s, various local councils had rubbish tips on the mud flats along the edge of the river. Heavy industry also contributed its share of waste into the river from wool scouring plants in Fremantle to fertiliser and foundries sited in the Bayswater{{snd}}Bassendean area. Remedial sites works are still ongoing{{as of? |date=March 2025}} in these areas to remove the toxins left to leach into the river.

During the summer months there are problems with [[algal bloom]]s killing fish, caused by nutrient run-off from farming activities as well as the use of fertilisers in the catchment areas. The occasional accidental spillage of sewage and chemicals has also caused sections of the river to be closed to human access. The river has survived all this and is in relatively good condition considering on-going threats to its ecology.

In 2010 the Government of Western Australian imposed restrictions on phosphorus levels in fertilisers due to concerns about the health of the Swan and Canning river systems.<ref>{{cite news |url=http://www.theaustralian.com.au/business/wa-goes-it-alone-over-phosphorus/news-story/a8713bfe016446d97f17466235f35c22?nk=731cdf16ad1df64dadeb5468e95092e4-1507543299 |title=WA goes it alone over phosphorus |date=30 April 2010}}</ref>
{{Panorama
|image=File:MatildaBay gobeirne.jpg
|height=140
|caption=Matilda Bay on the Swan River, with [[Mount Eliza, Western Australia|Mount Eliza]] and the Perth skyline in the background
}}