Brominated Flame Retardants in Sediments of Four Coastal Lagoons of Yucatan, Mexico

We examined the sediments of four coastal lagoons (Ria Lagartos, Bocas de Dzilam, Laguna de Chelem and Ria Celestun) from the state of Yucatan, Mexico, for three widely used commercial polybrominated diphenyl ethers formulations (penta-, octa- and deca-BDE). The most commonly found congeners in all...

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Published inBulletin of environmental contamination and toxicology Vol. 101; no. 2; pp. 160 - 165
Main Authors Valenzuela-Sánchez, I. S., Gold-Bouchot, G., Hernández-Núñez, E., Barrientos-Medina, R. C., Garza-Gisholt, E., Zapata-Pérez, O.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.08.2018
Springer Nature B.V
Subjects
Aquatic Pollution
Bromination
Chemical industry
Coastal environments
Congeners
Dispersal
Earth and Environmental Science
Ecotoxicology
Electronic waste
Environment
Environmental Chemistry
Environmental Health
Ethers
Flame retardants
Formulations
Lagoons
Landfills
Municipal landfills
Pollution
Polybrominated diphenyl ethers
Sediments
Sinkholes
Soil Science & Conservation
Waste disposal
Waste disposal sites
Waste Water Technology
Water Management
Water Pollution Control
Mexico
Coastal lagoons from the state of Yucatan
Contaminants in sediments
Environmental monitoring
Brominated flame retardants
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Summary:We examined the sediments of four coastal lagoons (Ria Lagartos, Bocas de Dzilam, Laguna de Chelem and Ria Celestun) from the state of Yucatan, Mexico, for three widely used commercial polybrominated diphenyl ethers formulations (penta-, octa- and deca-BDE). The most commonly found congeners in all four lagoons were BDEs 47, 99 and 100 (all in the penta-BDE formulation) and BDE209 (deca-BDE formulation). The greatest variety and highest concentrations of brominated flame retardants were found in Ria Lagartos, which also showed the highest BDE 100 concentration (24.129 ng/g). Hexabromocyclododecane was found in all lagoons, but at lower concentrations than those of the various polybrominated diphenyl ethers. Dispersal routes of these compounds are discussed, such as a ring of sinkholes (cenotes) adjacent to the lagoons. Moreover, electronic waste is a serious problem because municipal landfills have been the primary disposal method for these wastes and therefore represent a reservoir of brominated fire retardants.
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ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-018-2347-z