N.B. Warns of Blue-Green Algae Health Risks as Temperatures Rise
N.B. Warns of Blue-Green Algae Health Risks as Temperatures Rise

The New Brunswick government is reminding the public of the potential health risks from cyanobacteria, also known as blue-green algae, as temperatures rise. The warning comes amid increasing heat that can promote the growth of these harmful blooms in lakes, rivers, and other water bodies across the province.

Health Risks from Blue-Green Algae

Cyanobacteria can produce toxins that pose serious health risks to humans and animals. According to the provincial government, exposure to blue-green algae can cause skin irritation, sore throat, red eyes, swollen lips, fever, nausea, vomiting, and diarrhea. Ingesting large amounts of toxins may lead to liver damage. Pets and livestock are especially vulnerable, as they may drink contaminated water or lick algae from their fur.

Public Advisory and Precautionary Measures

The government advises residents to avoid swimming, fishing, or engaging in recreational activities in water where blue-green algae blooms are visible. Blooms often appear as green scum, mats, or paint-like streaks on the water surface. Officials recommend not drinking or using such water for cooking, brushing teeth, or bathing. Boiling contaminated water does not remove the toxins and may actually concentrate them.

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If contact occurs, the government suggests rinsing with clean water immediately. Anyone experiencing symptoms after exposure should seek medical attention. The public is encouraged to report suspected blooms to the Department of Environment and Local Government.

Climate Context and Recent Events

The warning coincides with a rise in temperatures across the province, which can accelerate algae growth. This advisory is part of a broader public health campaign to raise awareness as summer approaches. The New Brunswick government emphasizes that early detection and avoidance are key to preventing illness.

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