The Ministry of the Environment

September 12, 2022

The Ministry of the Environment, Conservation and Parks North Bay Area Office received notification today of a possible harmful algal bloom in Ruth Lake, Township of Nipissing

Ministry staff conducted a site visit today to collect a sample which will be sent to the lab for analysis.

Sample Results will be shared once they become available.

Information on blue-green algae can be downloaded from Blue-green algae |

It is important to note that in addition to the nuisance (fouling) and aesthetic (smell) problems caused by blue-green algal blooms, several species of cyanobacteria have the ability to create toxins.