This bathing water beach often has patches of seaweed (macroalgae) and the bathing water can be affected by occasional blooms of phytoplankton (microscopic algae) which are not harmful, but can result in the water appearing discoloured or as foam forming on the water.
The risks to human health from contact, ingestion or inhalation with marine algae that currently occur in UK coastal waters are considered to be low. However, some individuals may be more sensitive and display some reactions.
A common marine algae found in UK coastal waters is Phaeocystis, which is often mistaken for sewage as it forms foam and a brown scum, but it is non-toxic.
Bathing is advised against due to pollution from run off from agricultural land, urban areas, and occasional discharges from storm overflows. During or after periods of heavy rainfall the impact from these sources of pollution can increase the risk of reduced bathing water quality.