The city says Kearney Lake Beach is closed for the season after municipal staff tested the water quality for bacteria and found a potential bloom of toxic blue-green algae.
Halifax Parks and Recreation says all swimming lessons have been cancelled, and that more testing in the area is underway.
Blue-green algae is found naturally in freshwater in Nova Scotia all the time, and are known as some of the oldest organisms on Earth, according to the municipality.
They say that certain types of this algae can produce toxins called microcystins. These blooms are known to have negative impacts for people and pets, especially in high concentrations. It mainly targets the skin, liver, kidneys, and digestive system.
Children and immune-compromised individuals are at a higher risk.
The city says water users are encouraged to take the following precautions:
- Avoid water contact. If contact occurs, towel off vigorously and wash with tap water as soon as possible.
- Do not swim or wade (or allow your children or pets to swim or wade) in any areas where blue-green algae is visible or in areas that have been closed to swimming due to possible blue-green algae.
- Keep pets on-leash and do not allow them to consume blue-green algae material.
- Avoid consuming water from this lake.
- Avoid consuming fish that has come from this lake.
The municipality monitors for blue-green algae at certain supervised beaches from July 1 to August 31.
HRM says there is a list of alternative supervised beach locations on the city’s website.