Polybrominated Diphenyl Ethers Accumulation in Dumpsites: A Threat to Environmental and Public Health

The environmental and human health impacts of polybrominated diphenyl ethers (PBDEs), widelyused brominated flame retardants introduced in the 1970s to enhance fire resistance in consumergoods such as electronics, textiles, and plastics is being reviewed. Due to their additive nature,PBDEs are not chemically bonded to products, leading to their gradual release into air, water, soil,and biota. The structure, persistence, and bioaccumulative properties of PBDEs were examined,highlighting that lower-brominated congeners are more toxic and bioavailable. It explores howimproper e-waste disposal, landfill leachate, atmospheric deposition, and industrial activitiescontribute to environmental contamination. Human exposure occurs primarily through ingestion,inhalation, and dermal contact, with vulnerable populations including children, waste workers, andresidents near dumpsites. Health effects linked to PBDE exposure include endocrine disruption,neurotoxicity, liver damage, and possible carcinogenicity. Regulatory efforts such as theStockholm Convention, EPA regulations, and the EU RoHS Directive have aimed to phase outPBDE production and use, but legacy pollution persists due to the chemical stability andwidespread historical use of PBDEs. Municipal dumpsites are identified as major contaminationsources, and the paper highlights contamination pathways such as leachate infiltration, airbornedispersion, and bioaccumulation in wildlife and ecosystems. Despite regulatory bans and phaseouts,PBDEs remain present in the environment, necessitating continued monitoring, improvedwaste management practices, development of safer alternatives, and targeted public healthstrategies. This study emphasizes the ongoing need for international cooperation, stricterenforcement, and remediation technologies to mitigate the enduring environmental and healthchallenges posed by PBDE pollution.