Skip to main content


Title: Blue-green algae
Author: Environment Agency
Document Type: Monograph
This brief Environment Agency leaflet describes what blue-green algae, blooms and scums are. Blue-green algae are natural inhabitants of many inland waters, estuaries and the sea. In fresh waters, they are found in suspension and attached to rocks and other surfaces at the bottom of shallow waterbodies and along the edges of lakes and rivers. When the numbers of blue-green algae are not excessive they, together with other algal groups, are important contributors to the aquatic biology of natural waters. If the water is enriched with nitrogen and phosphorus, and other requirements for growth are met then the numbers of blue-green algae can become excessive. Such extensive growths are sometimes referred to as BLOOMS. For reasons which are not yet fully understood, bloom and scum forming blue-green algae in freshwaters, brackish water and seawater are capable of producing TOXINS.
Publisher: Environment Agency
Publication Date: [after 1996]
Publication Place: Bristol
Subject Keywords: Algal bloomsInland watersEstuariesSea waterToxins
Taxonomic Keywords: Cyanobacteria
Extent: n.p. [4]
Total file downloads: 299

Download PDF    Display PDF in separate tab