Environmentalists and volunteers are using recycled human hair to remove oil and organic contaminants from Guanabara Bay in Rio de Janeiro [1, 2].
This initiative addresses severe pollution in one of Brazil's most prominent waterways by utilizing a cheap, natural material to replace expensive synthetic alternatives. The project relies on the natural properties of human hair to attract and hold onto hydrocarbons.
Local NGOs and community groups coordinated the effort, which involved packing donated human hair into nylon stockings [1, 2]. These stockings create low-cost booms that are placed across the water to contain and absorb oil, greases, and other organic pollutants [2].
The barriers were installed in March 2026 as part of a broader effort to mitigate the environmental damage in the bay [2]. By creating these absorbent barriers, the volunteers aim to prevent pollutants from spreading further into the marine ecosystem, a critical step for the health of the local coastline.
Because human hair is a biodegradable and widely available resource, the method provides a sustainable way to manage spillages without introducing more plastic-based chemicals into the water [1, 2]. The volunteers continue to monitor the effectiveness of these hair-filled booms in the challenging conditions of the bay.
“Recycled human hair is being packed into nylon stockings to create low‑cost booms.”
The use of human hair for oil remediation is a form of biomimicry that leverages the lipophilic nature of hair to trap hydrocarbons. By deploying this low-cost, community-driven solution in Guanabara Bay, organizers are demonstrating a scalable model for urban pollution control that reduces reliance on industrial sorbents and utilizes waste materials to protect marine biodiversity.
