A recent research study conducted by the University of British Columbia has highlighted the potential environmental repercussions of artificial turf fields in Metro Vancouver. The study, published in the journal Environmental Science Processes & Impacts, reveals that these fields are releasing a harmful chemical, 6PPD-quinone, which poses a threat to coho salmon. The source of this pollution has been identified as the crumb rubber infill used in artificial turf, which is essentially ground-up recycled tires.
Rachel Scholes, an assistant professor at UBC and one of the study’s co-authors, expressed concerns about the leaching of contaminants from the black rubber infill into water systems during rainfall. Samples collected from 12 artificial turf fields in Metro Vancouver indicated persistent contamination, with fields continuing to release pollutants over their lifespan, which can span more than a decade.
Katie Moloney, a PhD student in environmental engineering at UBC, emphasized the harmful effects of even small amounts of 6PPD-quinone on aquatic life, particularly coho salmon. The study revealed that the released chemical surpasses lethal concentration levels for these fish species, with potential harm also extending to juvenile cutthroat trout.
The City of Vancouver’s increasing investment in synthetic turf fields to address the growing demand for sports facilities is juxtaposed with the study’s findings. While synthetic turf fields offer year-round usability and higher revenue recovery compared to natural grass fields, environmental concerns remain paramount. The report underscores the importance of addressing microplastic release and enhancing stormwater management systems to mitigate environmental risks associated with artificial turf fields.
In response to the study’s findings, the Vancouver Park Board has ceased the use of crumb rubber infill and shifted to inert and non-toxic materials like EPDM rubber. Other municipalities, such as Surrey and Burnaby, have also taken note of the research and are implementing measures to monitor and address potential environmental impacts.
To minimize the risk posed by harmful chemicals in artificial turf fields, Scholes suggested alternatives like polymer infill materials or the installation of treatment systems to capture contaminants before they enter water systems. These proactive measures aim to protect aquatic life and preserve the integrity of local ecosystems.
