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Nomiyama, Kei [VerfasserIn]; Shimasaki, Makoto [VerfasserIn]; Mizukawa, Hazuki [VerfasserIn]; Takaguchi, Kohki [VerfasserIn]; Saengtienchai, Aksorn [VerfasserIn]; Ngamchirttakul, Araya [VerfasserIn]; Pencharee, Disdanai [VerfasserIn]; Khidkhan, Kraisiri [VerfasserIn]; Ikenaka, Yoshinori [VerfasserIn]; Nakayama, Shouta M.M [VerfasserIn]; Ishizuka, Mayumi [VerfasserIn]

Exposure of Pet Cats in Thailand to Organohalogen Compounds and Their Hydroxylated and Methoxylated Derivatives Via Cat Food and House Dust

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  • Medientyp: E-Book
  • Titel: Exposure of Pet Cats in Thailand to Organohalogen Compounds and Their Hydroxylated and Methoxylated Derivatives Via Cat Food and House Dust
  • Beteiligte: Nomiyama, Kei [VerfasserIn]; Shimasaki, Makoto [VerfasserIn]; Mizukawa, Hazuki [VerfasserIn]; Takaguchi, Kohki [VerfasserIn]; Saengtienchai, Aksorn [VerfasserIn]; Ngamchirttakul, Araya [VerfasserIn]; Pencharee, Disdanai [VerfasserIn]; Khidkhan, Kraisiri [VerfasserIn]; Ikenaka, Yoshinori [VerfasserIn]; Nakayama, Shouta M.M [VerfasserIn]; Ishizuka, Mayumi [VerfasserIn]
  • Erschienen: [S.l.]: SSRN, [2022]
  • Umfang: 1 Online-Ressource (30 p)
  • Sprache: Englisch
  • DOI: 10.2139/ssrn.4026159
  • Identifikator:
  • Entstehung:
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  • Beschreibung: Organohalogen compounds (OHCs) are widely present and have been shown to have harmful effects on both humans and wildlife. Pet cats are mainly exposed to anthropogenic and naturally occurring OHCs through dietary intake of cat food and ingestion of contaminated house dust. In this study, we analyzed serum samples of pet cats from Thailand to estimate their risk of exposure to OHCs and the contributions of cat food and house dust. BDE-209 was predominant in cat sera and accounted for 76% of all polybrominated diphenyl ethers (PBDEs). The major hydroxylated PBDE (OH-PBDE) and methoxylated PBDE (MeO-PBDE) congeners in the cat sera were 6-OH-BDE-47, 2′-OH-BDE-68, and 2′-MeO-BDE-68, which have natural origins. BDE-209 is a major contaminant in dry cat food and house dust, which has been estimated to be a source of exposure for Thai pet cats. The contributions of pet food and dust to OHC contamination were calculated assuming a standard body weight of 4 kg for pet cats. Assuming a house dust intake of 50 mg day −1 (average-case scenario), the pet cats were primarily exposed to polychlorinated biphenyls (PCBs) and MeO-PBDEs by dietary intake. In contrast, the contributions of dietary intake to PBDE exposure were 72% (dry food only), 60% (both dry and wet food), or 30% (wet food only). Assuming a house dust intake of 200 mg day −1 (worst-case scenario), the contributions of dietary intake were 47% (dry food only), 33% (both dry and wet food), or 9.5% (wet food only). The hazard quotients (HQs) were calculated for the different dietary patterns, and the HQ of PCBs exceeded 1 for pet cats that only ate wet food. These results suggest that pet cats are exposed to nonnegligible levels of OHCs
  • Zugangsstatus: Freier Zugang