Bioavailability of polycyclic aromatic hydrocarbons on São Paulo state coast (southeastern Brazil) was evaluated through the analysis of biliary metabolites in Spheniscus magellanicus (n = 79). The animals analyzed in present study were either found dead during beach monitoring procedures or died at rehabilitation centers. Analyses of naphthalene (NAP), phenanthrene (PHE) and benzo[a]pyrene (BaP) metabolites were performed using a high-performance liquid chromatograph equipped with fluorescence detectors. Total metabolite (TM) concentrations ranged from below the method quantification limit to 270 μg g⁻¹ of bile. TM concentrations were mainly composed of NAP metabolites, followed by PHE metabolites. BaP metabolites were detected in only two samples. This is the first study using PAHs metabolites in S. magellanicus to assess the bioavailability of these compounds in coastal regions.

通过分析麦哲伦（n = 79）中胆汁代谢产物，评估了圣保罗州海岸（巴西东南部）多环芳烃的生物利用度。在本研究中分析的动物要么在海滩监测程序中发现死亡，要么在康复中心死亡。使用配备有荧光检测器的高效液相色谱仪进行萘（NAP），菲（PHE）和苯并[ a ] re（BaP）代谢物的分析。总代谢物（TM）的浓度范围从方法定量限值以下到270μgg ^-1胆汁 TM浓度主要由NAP代谢物组成，其次是PHE代谢物。仅在两个样品中检测到BaP代谢物。这是首次使用麦哲链球菌中PAHs代谢物评估沿海地区这些化合物的生物利用度的研究。