The Willamette River is Full of Green Algae

The Oregon Health Authority has issued a warning regarding a harmful algal bloom that has spread throughout the Willamette River in Portland, originating from the Ross Island lagoon. The bloom, which poses health risks to humans and is deadly for pets, has raised concerns among local advocates about the state's response time. Willie Levenson, a prominent river advocate, criticized the slow notification process and urged for more proactive measures to prevent such blooms, which have become increasingly common due to climate change. The Ross Island lagoon, a manmade feature from the 1920s, has become a breeding ground for cyanobacteria due to stagnant water conditions. Levenson is working with scientists to design a channel that would enhance water circulation and mitigate algal growth, but funding remains a significant hurdle.

Advocates had hoped for legislative support in the recent session, but a related bill failed to advance. Levenson aims for a milestone in the channel design work next year, which he believes will demonstrate the project’s viability to stakeholders. He emphasizes that fostering public connection to the river is essential for long-term environmental change.