Instituto Oceanográfico, Universidade de São Paulo, 05508-120 Praça do Oceanográfico, 191 São Paulo, SP, Brazil.
Universidade Federal da Bahia, Instituto de Geociências, Departamento de Oceanografia, Rua Barão de Jeremoabo, 40170-020 Salvador, Bahia, Brazil.
Mar Pollut Bull. 2020 Dec;161(Pt B):111818. doi: 10.1016/j.marpolbul.2020.111818. Epub 2020 Nov 5.
The occurrence and spatial distribution of persistent organic pollutants (POPs) and personal care products (PCPs) were investigated in surface sediments of Todos os Santos Bay. Samples were Soxhlet-extracted and analyzed by gas chromatography coupled with tandem mass spectrometry. Quantification limits (QL) ranged from 0.0025 ng g for POPs to 0.25 ng g for PCPs. Of the POPs studied, only PCBs and DDTs were detectable, with concentrations ranging from <QL to 4.66 ng g, with increased concentrations near urban and industrial areas. PCPs ranged from <QL to 27.5 ng g and presented a homogeneous spatial distribution, probably related to the continuous inputs of these compounds from diffuse sources. Mean contaminant inventories ranged from 0.33 ± 0.23 ng cm for DDTs to 8.3 ± 8.4 ng cm for fragrances. To the best of our knowledge, this is the first study on the occurrence of UV filters in sediments from Brazilian coastal environments.
本研究调查了托多斯桑托斯湾表层沉积物中持久性有机污染物（POPs）和个人护理产品（PCPs）的存在和空间分布。样品采用索氏提取，并用气相色谱-串联质谱法进行分析。定量限（QL）范围为 0.0025ng/g 至 0.25ng/g 不等，其中 POPs 的 QL 为 0.0025ng/g，PCPs 的 QL 为 0.25ng/g。在所研究的 POPs 中，仅可检测到 PCB 和滴滴涕，浓度范围为<QL 至 4.66ng/g，在城市和工业区附近浓度较高。PCPs 的浓度范围为<QL 至 27.5ng/g，呈均匀的空间分布，可能与这些化合物从弥散源的持续输入有关。污染物含量平均值范围为 0.33±0.23ng/cm 至 8.3±8.4ng/cm，其中滴滴涕为 0.33±0.23ng/cm，香水类为 8.3±8.4ng/cm。据我们所知，这是巴西沿海环境沉积物中紫外线滤光剂存在情况的首次研究。
