We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
A pioneering plastic particle footprint concept for addressing the challenges posed by plastic pollution
Summary
Scientists created a new way to measure how much microplastic pollution everyday items like kettles, crates, water bottles, and T-shirts shed over their lifetime—something typically ignored when comparing products' environmental impact. Their calculations show that the "eco-friendlier" choice based on carbon emissions alone isn't always the best option once microplastic pollution is factored in, since these tiny particles can accumulate in the environment and potentially in our bodies. This matters because it means the products marketed as better for the planet might actually release more health-concerning plastic particles, so we need better information to make truly informed choices.
Persistent plastic micro- and nanoparticle (MNP) pollution poses a serious threat to global health. Yet they typically cannot be considered in conventional life cycle assessments (LCAs), which weakens decision-making. To avoid waiting for consensus on the MNPs' fate and impacts required by LCA, an innovative framework has been developed to conservatively estimate the plastic particle footprint (PPF), i.e., the total MNP emissions during the plastic's lifetime of an item, up to the very long-term fate. Reporting the PPF as an elementary flow alongside other indicators shows to improve the ability to weigh up the alternatives' benefits. Applying the calculation to four everyday items-kettles, crates, beverage containers, and T-shirts-radically changes the best material option for the three of them whose carbon footprints are close. This also raises trade-off questions such as: Are the 280 grams of greenhouse gas emissions saved by using a reusable plastic crate instead of a wood crate worth the 21 grams of additional MNP pollution?