Alberta Health Services has issued a health advisory for Heritage Lake, near Morinville, until further notice. Blue-green algae blooms have been Alberta Health Services has issued a health advisory for Heritage Lake, near Morinville, until further notice.

The warning from New Brunswick's chief medical officer of health comes less than a week after three dogs died as a result of what is suspected to be a blue-green algae bloom.

Necropsy results show blue-green algae caused the deaths of three dogs playing near the St. John River more than a week ago.

Not all blooms are harmful but some types can make humans and animals sick when breathed-in, swallowed or touched

Some residents in B.C.'s Central Interior are being told to avoid drinking or bathing in their tap water following an outbreak of potentially toxic algae blooms.

The Okanagan Indian Band is advising residents to not enter or consume water from the north arm of Okanagan Lake until further notice due to a toxic algae bloom.

The beach at a state park in upstate New York has been closed because of a toxic algae bloom.