Better Health Channel
betterhealth.vic.gov.au Department of Health
betterhealth.vic.gov.au Department of Health
  • Most algae are harmless and an important part of the natural ecosystem.
  • Some types of algae are harmful to people and animals, and some can produce toxins which can cause serious illness.
  • Where these harmful algae grow rapidly and accumulate in a water environment, it is known as a harmful algal bloom. It is difficult to tell the difference between a harmful algal bloom and a non-harmful algal bloom.
  • Direct contact with algae can cause irritation to the skin, eyes, ears, nose and mouth. To be safe, people and pets should avoid water affected by algae.
  • Do not use untreated algae-affected water for drinking, showering or washing. Boiling algae-affected water does not remove toxins.
  • Algal toxins can gather in shellfish, crustaceans and the internal organs of fish. Where there is a harmful algal bloom, do not consume recreationally caught shellfish or crustaceans, and gut and gill fish prior to cooking or freezing.

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Content on this website is provided for information purposes only. Information about a therapy, service, product or treatment does not in any way endorse or support such therapy, service, product or treatment and is not intended to replace advice from your doctor or other registered health professional. The information and materials contained on this website are not intended to constitute a comprehensive guide concerning all aspects of the therapy, product or treatment described on the website. All users are urged to always seek advice from a registered health care professional for diagnosis and answers to their medical questions and to ascertain whether the particular therapy, service, product or treatment described on the website is suitable in their circumstances. The State of Victoria and the Department of Health shall not bear any liability for reliance by any user on the materials contained on this website.

Reviewed on: 23-05-2022