Environment, conservation and climate
Invasive species are spreading
Hundreds of invasive species have infiltrated our lakes, rivers and forests. This puts our native fish, plants and animals and their habitats at risk.
After an invasive species arrives it is almost impossible to remove it. This can cause irreparable damage to important habitats and ecosystems.
For general information on blue-green algae, please refer to the Ministry of the Environment, Conservation and Parks’ website at Blue-green algae | ontario.ca .
Jordan Lake (Hwy 62, Tudor) — Township of Tudor and Cashel
The Belleville Area Office of the Ministry of the Environment, Conservation and Parks (MECP) attended this site on August 31, 2023 in response to a notification regarding a possible blue green algal bloom in Jordan Lake, in the Township of Tudor and Cashel.
Final Laboratory results for both locations are indicative of blue-green algal blooms (specifically Phormidium, Dolichospermum, and Spirulina at Location 1 and Phormidium, Planktothrix, and Spirulina at Location 2) and mats of green algae at both locations (specifically Mougeotia).
The samples from Location 1 and 2 had Total Microcystin concentrations of 0.37 μg/L and 0.21 μg/L, respectively. Anatoxin-A and Microcystin-LR for both locations were below the laboratories reported detection limit.
Health Canada’s Recreational Limit for Microcystin is 10 μg/L, and Ontario’s Drinking Water Standard is 1.5 μg/L.
These results are based on the amount of algal material in the submitted samples. Algal blooms have the potential to change over time if conditions are favourable for growth.
Health related questions should be directed to local Public Health or a Physician.
For general information on blue-green algae, please refer to the Ministry of the Environment, Conservation and Parks’ website at Blue-green algae | ontario.ca or the fact sheets attached.