气候变化领域集成服务门户(CCPortal): Spatial and temporal trends of per- and polyfluoroalkyl substances (PFASs) in sediments from the Rhône River near Lyon

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.903773
	Spatial and temporal trends of per- and polyfluoroalkyl substances (PFASs) in sediments from the Rhône River near Lyon
	Mourier; Brice; Labadie; Pierre; Desmet; Marc; Grosbois; Cécile; Raux; Julie; Debret; Maxime; Copard; Yoann; Pardon; Patrick; Budzinski; Hélène; Babut; Marc
发布日期	2019-07-11
数据集类型	dataset
英文关键词	bed sediment ; Per- and polyfluoroalkyl substances ; Rhône River ; sediment core ; spatial trend ; temporal trend
英文简介	Bed sediments and a dated sediment core were collected upstream and downstream from the city of Lyon (France) to assess the spatial and temporal trends of contamination by per- and polyfluoroalkyl substances (PFASs) in this section of the Rhône River. Upstream from Lyon, concentrations of total PFASs (tPFASs) in sediments are low (between 0.19 and 2.6 ng g-1 dry weight - dw), being characterized by a high proportion of perfluorooctane sulfonate (PFOS). Downstream from Lyon, and also from a fluoropolymer manufacturing plant, tPFASs concentrations reach 48.7 ng g-1 dw. A gradual decrease of concentrations is reported at the coring site further downstream (38 km). Based on a dated sediment core, the temporal evolution of PFASs is reconstructed from 1984 to 2013. Prior to 1987, tPFASs concentrations were low (≤ 2 ng g-1 dw), increasing to a maximum of 51 ng g-1 dw in the 1990s and then decreasing from 2002 to the present day (~10 ng g-1 dw). In terms of the PFAS pattern, the proportion of perfluoroalkyl sulfonic acids (PFSAs) has remained stable since the 1980s (~10%), whereas large variations are reported for carboxylic acids (PFCAs). Long chain- (C>8) PFCAs characterized by an even number of perfluorinated carbons represent about 74% of the total PFAS load until 2005. However, from 2005 to 2013, the relative contribution of long chain- (C>8) PFCAs with an odd number of perfluorinated carbons reaches 80%. Such changes in the PFAS pattern likely highlight a major shift in the industrial production process. This spatial and retrospective study provides valuable insights into the long-term contamination patterns of PFAS chemicals in river basins impacted by both urban and industrial activities.
空间范围	Median Latitude: 45.578479 * Median Longitude: 4.839126 * South-bound Latitude: 45.471117 * West-bound Longitude: 4.773872 * North-bound Latitude: 45.849456 * East-bound Longitude: 5.213294
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215140
推荐引用方式 GB/T 7714	Mourier,Brice,Labadie,et al. Spatial and temporal trends of per- and polyfluoroalkyl substances (PFASs) in sediments from the Rhône River near Lyon.2019-07-11.https://doi.org/10.1594/PANGAEA.903773.