Potential Role of Pet Cats As a Sentinel Species for Human Exposure to Flame Retardants

Autor: Manuel Zumbado, María Camacho, Luis Alberto Henríquez-Hernández, Yaiza Falcón Cordón, Soraya Falcón Cordón, Elena Carretón, José Alberto Montoya-Alonso, Verónica Bernal Martín, Octavio P. Luzardo, Luis D. Boada
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Frontiers in Veterinary Science
Frontiers in Veterinary Science, Vol 4 (2017)
ISSN: 2297-1769
DOI: 10.3389/fvets.2017.00079
Popis: Flame retardants are a wide group of chemicals used by the industry to avoid combustion of materials. These substances are commonly found in plastics, electronic equipment, fabrics, and in many other everyday articles. Subsequently, ubiquitous environmental contamination by these common chemical is frequently reported. In the present study, we have evaluated the level of exposure to polychlorinated biphenyls (PCBs), brominated diphenyl ethers (BDEs), and organophosphorous flame retardants (OPFRs) in pet cats through the analysis of their serum. We also analysed the level exposure to such chemicals in a series of 20 cat owners, trying to disclose the role of pet cats as sentinel species of human exposure to flame retardants. Our results showed that PCBs, banned 40 years ago, showed the lowest levels of exposure, followed by BDEs —banned recently. Congeners PCB-138 and PCB-180 were detected in ≥ 50% of the series, while BDE-47 was detected in near 90% of the pet cats. On the other hand, the highest levels were that of OPFRs, whose pattern of detection was similar to that observed in humans, thus suggesting a potential role of cats as a sentinel species for human exposure to these currently used flame retardants. Six out of eleven OPFRs determined (2-Ethylhexyldiphenyl phosphate, Tributylphosphate, Triisobutylphosphate, Triphenylphosphate, Tris (2-chloroethyl)phosphate, and Tris (2-chloroisopropyl)phosphate) were detected in 100% of the samples. It will be extremely interesting to carry out further research to elucidate the potential toxicological effects of these highly detected chemicals both, in cats and humans.
Databáze: OpenAIRE