Recent reports indicate a surge in algal blooms along the coasts of Sweden, particularly in Västernorrland, Gotland, Öland, and Skellefteå.

Experts warn that while not all algae are toxic, thick green scum in the water can pose health risks to humans and pets.

Marine biologist Markus Lindh from SMHI notes that calm, sunny weather encourages the growth of cyanobacteria, which can produce harmful toxins.

In Skellefteå, local authorities have advised against swimming due to suspected cyanobacterial blooms, urging the public to avoid contact with the water.

Symptoms of exposure can include vomiting, especially in children and pets.

As the summer progresses, vigilance is essential for beachgoers to ensure safety in affected areas.