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Marine algal blooms

This leaflet explains what marine algal blooms are, how they affect you and what you should do if you see one

Marine algal bloom

Natural Resources Wales receives many enquiries about the quality of coastal waters. Most are about genuine pollution incidents, but sometimes they relate to algal blooms that are a natural feature in our seas.

This leaflet explains what marine algal blooms are, how they affect you and what you should do if you see one.

Related document downloads

Marine algae leaflet PDF [1.2 MB]

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