Heatwave: Cyanobacteria proliferation in French water bodies

Cyanobacteria, toxic to humans and animals, are multiplying in lakes and rivers.

Published 3sem2 sources✓ ConfirmedImportantupdated 3sem

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The fact

Health authorities advise against swimming in several areas.

This proliferation is linked to rising temperatures and pollution.

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Auto-synthesis from 2 media sources · identified on June 27, 2026