Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales

Holly Barrett; Xuan Du; Magali Houde; Stephane Lair; Jonathan Verreault; Hui Peng

首页> 外文期刊>Environmental Science & Technology >Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales

【24h】

Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales

机译：嫌疑人和非阿加里术筛选揭示了圣劳伦斯鲸鱼的多氟烷基物质的特定于多种颞态趋势（2000-2017）

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The global use of ＞3000 per- and polyfluoroalkyl substances (PFASs) has given rise to chemical regulatory action. However, limited information exists regarding current and historical emissions for the majority of PFASs under currently implemented regulations. This study employed suspect and nontarget screening to examine the temporal trends of legacy and unregulated PFASs in liver of the endangered beluga whale (Delphinapterus leucas) population from the St. Lawrence Estuary in Canada collected from 2000 to 2017. A suite of 54 PFASs were tentatively identified, and were grouped into nine structurally distinct classes. Single-hydrogenated perfluoro carboxylic acids (H- PFCAs), single-hydrogenated sulfonamides (H-Sulfonamides), as well as other select sulfonamides were detected for the first time in wildlife. Greater concentrations of the majority of PFASs were determined in newborns and juveniles than in adults, suggesting effective placental and lactational transfer of PFASs. Legacy per- and polyfluoroalkyl acids and perfluorooctane sulfonamide in beluga whale liver were found to significantly decrease in concentration between 2000 and 2017, while unregulated short-chain PFAS alternatives, H-PFCAs, and odd-chain FTCAs were found to increase over time. The implementation of suspect and nontarget screening revealed class-specific temporal trends of PFASs in SLE beluga whales, and supported continuous emissions of unregulated PFASs into the environment.

机译：全球使用> 3000（Perfloro烷基物质（PFASS）的使用引起了化学调节作用。但是，关于当前实施法规的大多数PFASS的当前和历史排放存在有限的信息。本研究采用了嫌疑人和非巴吉特筛查，以研究从2000年至2017年从加拿大圣劳伦斯河口的濒危白鲸（Delphinaperus Leucas）人口肝脏的遗产和未调节的PFASS的时间趋势。鉴定，并分为九个结构上不同的类别。在野生动物中首次检测单氢化全氟羧酸（H-PFCAs），单氢化磺酰胺（H-磺酰胺），以及其他选择磺酰胺。在新生儿和青少年中测定大多数PFASS的大多数浓度，而是在成人中，表明有效的胎盘和泌乳转移的PFASS。在2000和2017之间的浓度下，发现植物和聚氟烷基酸和全氟辛烷磺酰胺和全氟辛烷磺酰胺在2000和2017之间的浓度显着降低，而发现未受管制的短链PFAs替代品，H-PFCA和奇数链FTCA随时间而增加。在SLE Beluga Whales中揭示了嫌疑人和Nontarget筛选的课堂特定时间趋势，并支撑了对环境的不受管纸币的连续排放。

著录项

来源
《Environmental Science & Technology》 |2021年第3期|1659-1671|共13页
作者
Holly Barrett; Xuan Du; Magali Houde; Stephane Lair; Jonathan Verreault; Hui Peng;
展开▼
作者单位

Department of Chemistry University of Toronto Toronto Ontario M5S 3H6 Canada;

Department of Chemistry University of Toronto Toronto Ontario M5S 3H6 Canada;

Environment and Climate Change Canada Montreal Quebec H2Y 2E7 Canada;

Canadian Wildlife Health Cooperative Faculte de Medecine Veterinaire Universite de Montreal Saint- Hyacinthe Quebec J2S 7C6 Canada;

Centre de Recherche en Toxicologie de l'Environnement (TOXEN) Departement des Sciences Biologiques Universite du Quebec a Montreal Montreal Quebec H3C 3P8 Canada;

Department of Chemistry and School of the Environment University of Toronto Toronto Ontario M5S 3H6 Canada;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
high-resolution mass spectrometry; nontarget analysis; suspect screening; per- and polyfluoroalkyl substances; emerging ontaminants;

机译：高分辨率质谱;Nontarget分析;怀疑筛选;每氟氟烷基物质和多氟烷基物质;新兴的风机;

相似文献

外文文献

1. Temporal trends of PBDEs and emerging flame retardants in belugas from the St. Lawrence Estuary (Canada) and comparisons with minke whales and Canadian Arctic belugas [J] . Antoine E. Simond, Magali Houde, Véronique Lesage, Environmental research . 2017,第JULa期

机译：来自加拿大圣劳伦斯河口的贝鲁加斯中多溴二苯醚和新兴阻燃剂的时间趋势，以及与小须鲸和加拿大北极贝鲁加斯的比较
2. Temporal trends (1987-2002) of persistent, bioaccumulative and toxic (PBT) chemicals in beluga whales (Delphinapterus leucas) from the St. Lawrence Estuary, Canada [J] . Michel Lebeuf, Michelle Noeel, Steve Trottier, The Science of the Total Environment . 2007,第1a3期

机译：加拿大圣劳伦斯河口白鲸（Delphinapterus leucas）中持久性，生物蓄积性和有毒（PBT）化学物质的时间变化趋势（1987-2002）
3. Target, Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea [J] . Qi Wang, Yuefei Ruan, Linjie Jin, Environmental Science & Technology . 2021,第2期

机译：南海海洋哺乳动物中的靶向，非甲醛和怀疑筛查和时间趋势
4. Exposure to Perfluoroalkyl Substances and Polybrominated Diphenyl Ethers from Traditionally Harvested Food Animals on St. Lawrence Island, Alaska [C] . Sam Byrne, Thoin Begum, Pamela Miller, Joint annual meeting of the International Society of Exposure Science and the International Society for Environmental Epidemiology . 2018

机译：来自阿拉斯加圣劳伦斯岛上传统采食动物的全氟烷基物质和多溴联苯醚的暴露
5. Investigation into the response of the auditory and acoustic communications systems in the Beluga whale (Delphinapterus leucas) of the St. Lawrence River Estuary to noise, using vocal classification. [D] . Scheifele, Peter Martin. 2003

机译：使用声音分类，调查圣劳伦斯河河口的白鲸（Beluga鲸）的听觉和声音通信系统对噪声的响应。
6. St. Lawrence Beluga Whales the River Sweepers? [O] . D Martineau 2002

机译：圣劳伦斯·白鲸（St. Lawrence Beluga）捕鲸人？
7. Target Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea [O] . -1

机译：来自南海海洋哺乳动物中的海洋哺乳动物的靶向非目标，以及可疑的筛选和颞率趋势

Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales

摘要

著录项

相似文献

相关主题

期刊订阅