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Cats' internal exposure to selected brominated flame retardants and organochlorines correlated to house dust and cat food

Norrgran Engdahl, J. and Bignert, Anders and Jones, Bernt and Athanassiadis, Ioannis and Bergman, Åke and Weiss, Jana (2017). Cats' internal exposure to selected brominated flame retardants and organochlorines correlated to house dust and cat food. Environmental science & technology (print). 51, 3012-3020
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Official URL: http://pubs.acs.org/doi/10.1021/acs.est.6b05025

Abstract

Pet cats may be used as a biomarker for assessing exposures to organohalogen compounds (OHCs) adsorbed to household dust in home environments. This study explores two exposure routes of OHCs, ingestion of OHCs (i) via house dust and (ii) via cat food. House dust from 17 Swedish homes and serum from the participating families' pet cats were collected, and cat food was purchased matching the diet reported. Paired samples of cat serum, house dust, and cat food were analyzed for brominated flame retardants/natural products (polybrominated diphenyl ethers (PBDEs), decabromobiphenyl (BB-209), decabromodiphenyl ethane (DBDPE), 2,4,6-tribromophenol (2,4,6-TBP), OH-PBDEs) and organochlorines (polychlorinated biphenyls (PCBs), 1,1-bis(4,4'-dichlorodipheny1)-2,2,2-trichloroethane (4,4'-DDT), 1,1-bis(4,4'-dichlorodiphenyl)-2,2-dichloroethene (4,4'-DDE), hexachlorobenzene (HCB), pentachlorophenol (PCP)). Significant correlations were found between serum and dust samples from the living rooms for BDE-47 (p < 0.035), BDE-99 (p < 0.035), and BDE-153 (p < 0.039), from the adult's bedroom for BDE-99 < 0.019) and from all rooms for BDE-99 (p < 0.020) and BB-209 (p < 0.048). This is the first time a correlation between cat serum levels and household dust has been established, a finding that supports the hypothesis that dust is a significant exposure route for cats. Serum levels were also significantly correlated with concentrations found in cat food for 6-OH-BDE47 (p < 0.002), 2,4,6-TBP (p < 0.035), and BB-209 (p < 0.007). DBDPE was found in high concentrations in all dust (median 154 pmol/g) and food samples (median 0.7 pmol/ig lw) but was below detection in serum samples, suggesting low or no bioavailability for DBDPE in cats.

Authors/Creators:Norrgran Engdahl, J. and Bignert, Anders and Jones, Bernt and Athanassiadis, Ioannis and Bergman, Åke and Weiss, Jana
Title:Cats' internal exposure to selected brominated flame retardants and organochlorines correlated to house dust and cat food
Series/Journal:Environmental science & technology (print) (0013-936X)
Year of publishing :2017
Volume:51
Page range:3012-3020
Number of Pages:9
Publisher:American Chemical Society, ACS
ISSN:0013-936X
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L02 Animal feeding
X Agricola extesions > X50 Chemistry
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Analytical Chemistry
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Agrovoc terms:cats, organic halogen compounds
Keywords:cats, organohalogen compounds (OHCs), exposure, house dust
URN:NBN:urn:nbn:se:slu:epsilon-e-4547
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4547
Additional ID:
Type of IDID
DOI10.1021/acs.est.6b05025
Web of Science (WoS)000395963800061
ID Code:14711
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Clinical Sciences
Deposited By: SLUpub Connector
Deposited On:11 Dec 2017 09:23
Metadata Last Modified:11 Dec 2017 09:23

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