Naslov
Organochlorine pesticides and polychlorinated biphenyl congeners in wild terrestrial mammals from Croatia: Interspecies comparison of residue levels and compositions

Autori
Herceg Romanić, Snježana ; Klinčić, Darija ; Kljaković-Gašpić, Zorana ; Kusak, Josip ; Reljić, Slaven ; Huber, Đuro

Izvornik
Chemosphere (0045-6535) 137 (2015); 52-58

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
OCPs; PCBs; Brown bear (Ursus arctos); Grey wolf (Canis lupus); Terrestrial wildlife; Croatia

Sažetak
In this pilot study, we investigated levels of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in the adipose tissues of two free- ranging terrestrial carnivores from Croatia sampled in 2010 and 2011: the brown bear (Ursus arctos ; N = 32) and the grey wolf (Canis lupus ; N = 29). Concentrations of POCPs and RPCBs ranged from 0.45 to 4.09 ng g1 lipid mass (lm) and from 0.93 to 8.52 ng g1 lm in brown bear, and from 1.18 to 5.67 ng g1 lm and 2.68 to 48.9 ng g1 lm in grey wolf adipose tissues, respectively. PCBs were dominant accounting for over 72% of total analyzed persistent organic pollutants (POPs). The sum of six indicator non-dioxin- like PCBs (R6IndNDL PCBs) made up 60–93% and 58–85% of the total congener concentrations in brown bears and wolves, respectively. Although the levels of the measured parameters were significantly higher in grey wolves than in bears, the contaminant profiles of the two species were similar, with c-HCH, HCB, b-HCH and DDE as major OCP contaminants, and PCB-153 > PCB-180  PCB-170 > PCB-138 as the dominant congeners. The sum of hexachlorocyclohexanes (RHCHs) and 8 toxicologically relevant dioxin- like PCBs (R8ToxDL PCBs) was higher in the males than in the females of the brown bear. Concentrations of RDDTs, HCB, ROCP, RPCBs, R6IndNDL PCBs, and toxicologically relevant non-dioxin-like PCBs (RToxNDL PCBs) were significantly positively correlated with lipid content in the grey wolf. Concentrations of OCPs and PCBs in brown bears and wolves from Croatia were low and normal for large terrestrial mammals.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Javno zdravstvo i zdravstvena zaštita, Veterinarska medicina

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