Apparently the run off from streets drain, gardens and farms are flushed into the swan and it is dangerous to swim in it for a few days over 10mm (we are currently sitting on 23mm)https://www.dpaw.wa.gov.au/parks/alerts-and-updates/item/2998-updated-alert-for-the-swan-canning-riverpark
Is this what you are getting at?
The Dangers of Surfing After a Rain Feed www.surfline.com/surf-news/is-the-72-hour-rule-still-the-foremost-guideline-for-avoiding-sickness-the-dangers-of-surfing-after-a-rain/1286 ------------------ Sent from the Surfline iPhone app
The whole river is basically brown at the moment because all the recent rain has caused tannin stained freshwater to flow downstream. Just because its brown doesn't mean its bad for you, but there is a risk that a load of pesticides/fertilisers got washed into the system, and following the warm weather we're expecting this week we may see some serious algal blooms occurring which aren't ideal for swimming in either.
Select to expand quoteglasstraxx said..
out today at point Walter and water was brown, with brown foam. ??
You know how when you put dishwashing liquid in water it bubbles? Same thing, as surfactants are released in to the water ways they increase the surface tension of the water and it bubbles. Algae can also produce organic surfactants when they die and begin to decompose but also in lesser amount when living.
As danial_y was saying there are pesticide run offs as well as pollutants from the streets from storm drains which include heavy metals which are taken in through the skin and cause defects in intelligence..
2:19
haha nah im on the brita... seriously tho water was super brown, was genuinely worried i was gonna catch something after getting out
Thinking about heading out to attadale /point Walter this Saturday. What's the go? Reckon it's unsafe?
