About blue-green algae
A blue-green algal bloom
Blue-green algae, or cyanobacteria, are the most ancient of all photosynthetic organisms. Some produce poisons harmful to humans and possibly fatal to domestic animals and fish - neurotoxins and liver toxins, and skin allergens.
Algal blooms can cause waters to be unsafe for all users of water including agriculture, irrigation and recreation.
It is essential that all persons affected by blue-green algae understand what it is, and what the potential impacts of the algae may be to them or their business or recreational activities.
The NSW Office of Water website provides up-to-date information for NSW on the algae situation. This site also includes tips for identifying algae, key contacts for more information, impacts of blue-green algal blooms, and locations where a red or amber alert is in place.
Information updates about blue-green algal blooms and red alert warning areas can be obtained from the Regional Algal Coordinating Committee, freecall Algal Information Hotline on 1800 999 457.
Information for landholders
- Blue-green algae poisoning of livestock
- Farm water quality and testing
- Irrigating with blue-green algae affected water
- Managing blue-green algae in farm dams
- Preventing animal health problems during drought
- Subsidies for cartage of water to areas affected by blue-green algae
- Water requirements for sheep and cattle