Blue-green algae advisory issued for Half Moon Lake
Blue-green algae is pictured in this photo from the Grand River Conservation Authority (GRCA).
Alberta Health Services (AHS) is advising people to avoid parts of Half Moon Lake with blue-green algae blooms.
The health authority said cyanobacteria, also known as blue-green algae, has been identified in the waters of Half Moon Lake in Strathcona County, approximately 27 kilometres east of Edmonton.
Visitors to the lake are advised to avoid all contact with algae blooms, not to swim or wade or allow pets to do so where algae blooms are visible, not to feed whole fish or trimmings from the lake to pets and to consider limiting human consumption of whole fish and trimmings from the lake. Fish fillets from the lake are still safe for human consumption.
If you or your pet comes into contact with blue-green algae, AHS recommends that you wash with tap water as soon as possible.
Cyanobacteria often looks like scum, grass clippings, fuzz or globs on the surface water. It can be blue-green, greenish-brown and/or pinkish-red. It can smell musty or grassy.
Those who come in contact with or ingest water containing blue-green algae may experience skin irritation, rash, sore throat, sore red eyes, swollen lips, fever, nausea and vomiting and/or diarrhea.
Symptoms usually appear within one to three hours and resolve within one or two days. Symptoms in children are usually more noticeable. Exposure to the bacteria can be fatal to pets.
AHS said the waters of Half Moon Lake which do not have visible blooms, can still be used for recreational purposes, even while the health advisory is in place.
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