Public concern about synthetic turf and rubber crumb is on the rise. These materials are becoming less appealing as studies reveal their potential harm to health and the environment. They can heat up dangerously on hot days and contain harmful chemicals that can leach into our waterways.
Synthetic grass has been embraced by schools and local councils for its lower cost and easier maintenance. However, it can reach temperatures of up to 75 degrees Celsius, risking burns for anyone using the surface. Emma Bacon, from Sweltering Cities, highlights that these surfaces contribute to the urban heat island effect, making surrounding areas even hotter.
On a recent hot day in Melbourne, a local climate activist, Ben Cox, used a temperature gun to measure surface temperatures. He found that synthetic turf was significantly hotter than natural grass, reaching 54 degrees Celsius in sunlight, compared to just 42 degrees for real grass. Such findings raise serious concerns about safety for both people and pets.
Michael Middleton, a cricketer, has experienced the harsh reality firsthand. “Whenever we see it’s over 30 degrees, there’s a collective groan from the team,” he says. “You can really feel the heat bounce off.”
The NSW planning department reports that on extreme summer days, synthetic surfaces can reach averages of 70-75 degrees, while irrigated natural grass stays cooler at around 37 degrees. This reality makes the case for investing in better natural grass fields, which could help avoid heat-related issues.
However, the battle doesn’t just stop at temperature concerns. Synthetic fields are also a source of microplastic pollution. A study found that fragments of synthetic grass in Sydney Harbour rose tenfold between 2022 and 2025. These materials break down and spread, causing more environmental harm.
The rubber crumb used in synthetic turf is often made from recycled car tires, which raises additional health concerns. These materials contain per- and polyfluoroalkyl substances (PFAS), known for their negative health impacts. A parliamentary inquiry recently suggested banning PFAS in artificial surfaces, giving weight to the ongoing public debate.
Local councils are looking to balance community needs with low-maintenance options. Merri-bek City Council’s Mayor Nat Abboud spoke about the increasing demand for public space. Yet, community members like Garnet Brownbill argue that these synthetic fields hinder broader recreational use.
Brownbill recalls how the introduction of a synthetic field at Gardiner Park led to a sharp decline in community activities, pushing out locals who used the area for cycling and casual sports. “Now it’s no longer a community park,” he says, emphasizing that user experience is declining.
For anyone considering synthetic turf, weigh the pros and cons carefully. While convenient and cost-effective, the rising concerns about health, safety, and environmental impacts cannot be ignored.
For further reading on this topic, you can explore the report by the Total Environment Centre detailing microplastic pollution and the recommendations from the inquiry into PFAS contamination. These resources provide insight into the growing issue and its implications for community health and well-being.
