Is sea foam pollution?

Most sea foam is natural and not harmful. It often indicates a productive ocean ecosystem.

When can sea foam be a concern?

Along Gulf coast beaches, foam can be a concern during a decaying Karenia brevis harmful algal bloom. Popping bubbles can send algal toxins into the air.

How can a visitor check current beach water status?

SCDES reports current beach water status on its beach monitoring page, including active short-term swim advisories.

Sea foam

Understand sea foam at the beach

Sea foam forms when wind and waves churn dissolved organic matter in seawater.

Sources checked August 23, 2026: NOAA Ocean Service sea foam facts (opens in a new tab) and NOAA Ocean Service red tide facts (opens in a new tab) and South Carolina Department of Environmental Services beach monitoring (opens in a new tab) .

Three choices

Understand most sea foam

Most sea foam is not harmful and often indicates a productive ocean ecosystem.

Know the Gulf coast bloom example

A red tide is a common term for a harmful algal bloom. Along Gulf coast beaches, popping foam bubbles during a decaying Karenia brevis bloom can send algal toxins into the air. The aerosol can irritate eyes and poses a health risk for people with asthma or other respiratory conditions.

Check beach monitoring status

Use the SCDES beach monitoring page to check beach monitoring advisories.

What this page covers

This record gives general sea foam information and identifies the Gulf coast Karenia brevis bloom as the cited aerosol example.

It reports no Surfside Beach foam, current bloom, current advisory, local frequency, season, diagnosis, treatment step, or phone number.

Source: NOAA Ocean Service sea foam facts (opens in a new tab) · Source: NOAA Ocean Service red tide facts (opens in a new tab) · Source: South Carolina Department of Environmental Services beach monitoring (opens in a new tab)

Sea foam questions

What is sea foam?: Sea foam forms when wind and waves churn dissolved organic matter in seawater.; Source: NOAA Ocean Service sea foam facts (opens in a new tab)
Is sea foam pollution?: Most sea foam is natural and not harmful. It often indicates a productive ocean ecosystem.; Source: NOAA Ocean Service sea foam facts (opens in a new tab)
When can sea foam be a concern?: Along Gulf coast beaches, foam can be a concern during a decaying Karenia brevis harmful algal bloom. Popping bubbles can send algal toxins into the air.; Source: NOAA Ocean Service red tide facts (opens in a new tab)
How can a visitor check current beach water status?: SCDES reports current beach water status on its beach monitoring page, including active short-term swim advisories.; Source: South Carolina Department of Environmental Services beach monitoring (opens in a new tab)