Polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs) and organophosphate esters (OPEs) were assessed in blood plasma and feathers of 19 adult black-legged kittiwakes (Rissa tridactyla) breeding in two colonies (Blomstrandhalvøya and Krykkjefjellet) at the Arctic archipelago, Svalbard. Potential associations with body condition index (BCI) and thyroid hormones were investigated. All compound classes were detected in both blood plasma and feathers, but due to low sample size and volumes, OPEs could only be quantified in four individuals, warranting larger follow-up studies. Kittiwakes breeding at Blomstrandhalvøya had significantly higher concentrations of organic pollutants in blood plasma than kittiwakes breeding at Krykkjefjellet (p < 0.001). Concentrations in blood plasma and feathers did not significantly correlate for any of the investigated compounds, and feather concentrations did not differ significantly between the colonies. This suggests that pollutant levels in adult kittiwake feathers do not reflect local contamination at breeding sites and are as such not useful to monitor local contamination at Svalbard. Significant negative associations between BCI and most pollutants were found in both populations, whereas significant correlations between the BCI, the ratio of total triiodothyronine to free triiodothyronine (TT3:fT3), and several pollutants were only found for kittiwakes from Blomstrandhalvøya (all r ≥ −0.60 and p ≤ 0.05). This indicates that higher levels of circulating pollutants during the breeding period covary with the TT3: fT3 ratio, and may act as an additional stressor during this period.

在两个殖民地（Blomstrandhalvøya和Krykkjefjelle）繁殖的19只成年黑脚kit（Rissa tridactyla）的血浆和羽毛中，对多氯联苯（PCBs），多溴联苯醚（PBDEs），有机氯农药（OCP）和有机磷酸酯（OPEs）进行了评估。）在斯瓦尔巴群岛的北极群岛。研究了与身体状况指数（BCI）和甲状腺激素的潜在关联。在血浆和羽毛中都检测到所有化合物类别，但是由于样本量和体积小，仅可在四个人中对OPE进行定量，因此有必要进行更大的随访研究。与在Krykkjefjellet繁殖的kittiwakes相比，在Blomstrandhalvøya繁殖的Kittiwakes血浆中的有机污染物浓度显着更高（p <0.001）。对于任何所研究的化合物，血浆和羽毛中的浓度均无显着相关，并且菌落之间的羽毛浓度也无显着差异。这表明成年Kittiwake羽毛中的污染物水平不能反映出繁殖地点的局部污染，因此对于监测斯瓦尔巴特群岛的局部污染是没有用的。在两个群体中发现BCI和最污染物之间显著负相关，而BCI之间显著的相关性，总三碘甲状腺氨酸的游离碘甲状腺原氨酸的比例（TT3：FT3），和多种污染物才被发现为三趾鸥从Blomstrandhalvøya（所有- [R  ≥ - 0.60和p ≤0.05）。这表明，繁殖期间较高水平的循环污染物与TT3：fT3之比成正比，并可能在此期间充当额外的压力源。