Cobourg – Pine Pollen in Lake Ontario Appears as Foaming Yellow Scum

In City Hall

The Town of Cobourg’s Environmental Service’s Department would like to inform citizens that pine pollen is currently visible on the shorelines of Lake Ontario during the months of June and July and is not harmful.

Most common during the month of June, the accumulation of a mustard yellow scum on inland lakes and along the shores and bays of Lake Ontario is caused when pine pollen from surrounding forests is blown into the water by high winds. This is a natural phenomenon that occurs in most of Northern Ontario where a forest ecosystem is prevalent.

This pine pollen should not be mistaken for algae, spilled paint or petroleum and is not harmful nor does it pose a health risk. The pine pollen will eventually decompose or become trapped in the sediment along the shoreline.

Pete Fisher
Author: Pete Fisher

Has been a photojournalist for over 30-years and have been honoured to win numerous awards for photography and writing over the years. Best selling author for the book Highway of Heroes - True Patriot Love

Join Our Newsletter!

Want to keep up to date on news and events in Northumberland? Subscribe to newsletter!

You may also read!

Video – Nawautin Sanctuary – Natures Photo Gallery

https://www.youtube.com/watch?v=Zx1GwTCC_g8 (Photo gallery) Another beautiful evening at Nawautin Sanctuary in Alnwick/Haldimand Township on Friday, May 9, 2025. Spring and sprung and there

Read More...

Video – Fun Times On The Golf Course Raising Money for a Great Cause

https://www.youtube.com/watch?v=kcN2osLOyZU (Photo gallery) It was a fun day raising funds for a great cause at Dalewood Golf Club on Friday, May

Read More...

Peterborough Police – Impaired Arrest, Warrant Arrests (No Names Released)

Calls for Service: (May 8 at 8:00am – May 9 at 8:00am) 117   Impaired Arrest A 19-year-old Peterborough man is facing an

Read More...

Mobile Sliding Menu