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PBDDFs proposed to be added to European POPs regulations
Time：
2025-04-01
The European Chemicals Agency (ECHA) has announced that a public consultation process has been initiated on the proposal to include polybrominated dibenzodioxins (PBDDFs) and their mixed bromine/chlorinated compounds in the list of persistent organic pollutants (POPs) under the Stockholm Convention.
On March 25, 2025, the European Chemicals Agency (ECHA) announced that a public consultation process has been initiated on the proposal to include polybrominated dibenzodioxins (PBDDFs) and their mixed bromine/chlorinated compounds in the list of persistent organic pollutants (POPs) under the Stockholm Convention. Stakeholders can submit their opinions and participate in this global environmental decision-making by May 20, 2025.
01. Introduction to PBDDFs
Polybrominated dibenzodioxins (PBDDs) and polybrominated dibenzofurans (PBDFs), collectively known as PBDDFs, are a class of organic compounds containing bromine, characterized by complex chemical structures, high stability, and difficulty in degradation. They belong to persistent organic pollutants (POPs) and have chemical structures and toxicological properties similar to polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs).
02. Purpose of PBDDFs
PBDEs are widely used in fields such as plastics, rubber, textiles, coatings, household appliances, electrical equipment, and building materials. They are added as flame retardants to these materials to improve their fire resistance. However, in the production, use, and recycling processes of these brominated flame retardants, as well as in thermal processing and treatment processes such as electronic waste dismantling, waste incineration, and metal smelting, PBDDFs may be generated as by-products.
03. Hazards of PBDDFs
Environmental hazards: PBDDFs have persistence and high bioaccumulation, making them difficult to eliminate through natural degradation. They can enter soil, water bodies, and plants through atmospheric transport, deposition, and other processes, and accumulate in the food chain.
Health hazards: PBDDFs have toxic effects such as neurotoxicity, genotoxicity, and endocrine disruption.
Persistent organic pollutants (POPs) typically have high toxicity, persistence, and bioaccumulation, posing a long-term threat to the ecological environment and human health. The PBDDFs substance in this proposal is a byproduct that may be generated in industrial production, and its chemical properties are similar to the strictly controlled chlorinated dioxins, which may cause serious harm to ecosystems and human health. The EU pointed out in the Draft Risk Profile that PBDDFs are extremely difficult to degrade in the environment and can be enriched through the food chain, but further verification is needed to determine whether they meet the criteria for identifying POPs. If PBDDs are officially included in the POPs list, they will be subject to POP regulations and the relevant contracting parties will gradually phase out their production, use, and emissions.
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