Blue-green algae Red Alert Psyche Bend downstream to Merbein on the Murray River

Blue-green algae Red Alert Psyche Bend downstream to Merbein on the Murray River

04 March 2020

A red alert level warning (high alert) is in place for a 20 km section of the Murray River between Psyche Bend and Merbein.

The declaration of a red alert follows testing undertaken by Lower Murray Water at a number of sites and surface scums have been observed at a recreational location downstream from Mildura. WaterNSW is also monitoring water quality at locations upstream, downstream and within the red alert area and will report the results as soon as they become available as levels of blue green algae continue to fluctuate in this lower reach of the Murray River.

A red alert level warning indicates that people should not undertake recreational activities where they may be coming into direct contact with the water. Contact with the water may also pose a threat to livestock, and pets. The dominant cyanobacteria detected are known to be toxin producers and may produce a strong musty odour.

People are advised not to enter the water, not to drink untreated water or bathe in untreated water while a red alert level warning is in place. Boiling the water will not remove algal toxins.

People should not eat fish, mussels or crayfish from red alert warning areas.

Blue-green algae usually appear as green paint-like scums on the water, near the edges, or as greenish clumps throughout the water. It makes the water appear dirty, green or discoloured and generally has a strong musty or earthy odour

Blue-green algae occur naturally and can reproduce quickly in favourable conditions where there is still or slow-flowing water, abundant sunlight and sufficient levels of nutrients. It is not possible to predict how long the algae will remain at high levels. Regular monitoring will continue, and the alert will be lifted as soon as the high levels of algae dissipate.

People who believe they may have been affected by blue-green algae are advised to seek medical advice.

Updates about blue-green algae blooms and red level warning areas can be obtained by calling 1800 999 457 or visiting – http://www.waternsw.com.au/water-quality/algae

General inquires – Elizabeth Symes – 0439 077 199

Media Contact – Tony Webber – 0428 613 478

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