People Are Still Being Exposed to Chemicals Banned 2 Decades Ago

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Decades after their prohibition, flame-retardant chemicals continue to pose a widespread contamination threat across Europe and beyond. A comprehensive analysis of over 180 scientific studies reveals that polybrominated diphenyl ethers (PBDEs), which were banned in the early 2000s due to health concerns, remain persistent environmental pollutants. These compounds, once incorporated into furniture, electronics, building materials, and textiles for their fire-resistant properties, show no signs of disappearing from European ecosystems, ranging from Spanish office buildings to remote alpine regions in Slovakia.

Scientists remain particularly alarmed about human exposure through food chains and indoor environments, where PBDE concentrations typically exceed outdoor levels. Research has linked these chemicals to potential health risks including liver and thyroid complications, breast cancer, and reproductive issues. While evidence from animal studies and population observations suggests these dangers, definitive causal links remain difficult to establish through scientific methods.

The persistence of PBDEs stems from multiple sources: deteriorating legacy products, waste streams, recycling operations, and contaminated industrial sites continue releasing these chemicals into soil, water, and air. Concerns mount as society increasingly embraces circular economy practices involving secondhand products and material recycling, which may inadvertently reintroduce these banned substances into modern supply chains without proper chemical monitoring.

According to lead researcher Khaled Abass, “PBDEs are therefore not simply pollutants of the past. They are legacy chemicals with an active environmental presence,” highlighting how regulatory decisions from decades ago continue shaping contemporary exposure risks.

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Originally reported by Sciencealert →