Plastics make up the majority of litter across Australia, and in the absence of strong regulation, citizen scientists are taking matters into their own hands to tackle the growing problem. From Melbourne's creeks to remote Arnhem Land beaches, volunteers are collecting data and cleaning up plastic waste, often filling gaps left by government and industry.
Neil Blake, a Melbourne resident, has conducted 56 collections of synthetic turf fragments from a stormwater gutter near Darebin Creek over the past three years. He noticed plastic from a local hockey pitch was running off into the environment, aided by wind and leaf blowers. Using scales at a community science lab in St Kilda, Blake quantifies his samples to present to local authorities.
In northern Australia, Sea Shepherd Australia partnered with Indigenous rangers to clean up Australia Bay, a culturally significant turtle nesting area heavily impacted by plastic pollution and abandoned fishing gear. Graham Lloyd, a remote marine debris campaigner, described the scene as 'extremely confronting', with decades of plastic waste including medical items and single-use plastics.
Jeff Angel, director of the Total Environment Centre, says such projects demonstrate how citizen science steps in where regulations have failed. 'Plastic pollution has been occurring for decades… it's one of our biggest pollution problems,' he notes, adding that citizen science educates individuals and fosters collective action toward solutions.
Australians produce over 3 million tonnes of plastic waste annually, with plastics making up more than 80% of litter nationwide. A review found a single synthetic turf field can release up to 100kg of plastic fragments into waterways. Citizen scientists provide crucial data to bodies like the CSIRO, helping monitor pollution and inform policy.
