Mysterious balls that led to Sydney beach closures contained harmful substances
The mysterious balls that prompted the closure of several beaches in Sydney last week were found to contain saturated acids, E. coli bacteria, and fecal matter, according to authorities.
The Northern Beaches Council of Sydney confirmed that the debris was sent for analysis by the New South Wales Environmental Protection Authority (EPA) to better understand its composition and origin.
On January 14, nine beaches—including popular spots like Manly and Dee Why—were closed after small, marble-sized spheres began appearing in the sand.
This incident follows a similar event in October when thousands of dark patches were spotted along the city's coastline, leading to temporary beach closures and a large-scale cleanup operation.
The latest batch of these mysterious balls was removed from beaches near the harbor this week, according to a statement from the Northern Beaches Council.
Authorities have advised the public to avoid touching the spheres and to report any sightings to the relevant agencies immediately.
In addition to bacteria and acids, the analysis also identified the presence of volcanic pumice rock.
Northern Beaches Mayor Sue Heins expressed hope that the Environmental Protection Authority’s investigation would uncover the source of the material, preventing similar incidents in the future.
She reassured the public that regular beach inspections are ongoing and encouraged residents to report any new findings.
When the first debris appeared in October, it was initially suspected to be tar balls. However, further testing revealed a complex mix of substances, including cooking oil, soap residues, blood pressure medication, pesticides, human hair, methamphetamine, and even veterinary drugs.
Experts noted that these materials resembled fatbergs—solidified masses of fat, oil, and waste commonly found in sewage systems.
Despite the findings, Sydney Water has stated that its treatment plants are operating normally and that there are no signs of issues within the city's sewer system.
