PFAS in sediments and fishes in Tampa Bay

The objective of this study is to quantify PFASs in sediment and fishes collected from Tampa Bay to further estimate human health risks from dietary exposures. Sediment (n = 17) and fish (24 species, n = 140) were collected throughout Tampa Bay in 2020 and 2021 and analyzed for 25 PFAS compounds. Concentrations of PFASs in sediments and edible tissues of fish ranged from 36.8 to 2,990 ng kg-1 (dry weight) and 307 to 33,600 ng kg-1 (wet weight), respectively. Generally, levels were highest in Old Tampa Bay and decreased south towards the Gulf of Mexico. Profiles in both matrices were generally dominated by perfluorooctane sulfonic acid (PFOS) with variations by location.本研究旨在量化坦帕湾采集的沉积物与鱼类样本中的全氟和多氟烷基物质（PFASs），以进一步估算膳食暴露引发的人体健康风险。本研究于2020至2021年间在坦帕湾全域采集沉积物样本17份、鱼类样本共140份（隶属于24个物种），并针对25种PFAS化合物开展检测分析。沉积物与鱼类可食用组织中的PFASs浓度范围分别为36.8至2990纳克每千克（干重）与307至33600纳克每千克（湿重）。整体而言，老坦帕湾的PFASs水平最高，向南往墨西哥湾方向逐渐降低。两类基质中的PFAS组分特征总体以全氟辛烷磺酸（perfluorooctane sulfonic acid，PFOS）为主，且不同采样点位存在一定差异。