Perfluoroalkyl acids in surface sediments of the German Bight in 2011
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2015
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| _version_ | 1867171850150215680 |
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| author | Zhao, Zhen Xie, Zhiyong Tang, Jianhui Zhang, Gan Ebinghaus, Ralf |
| author_facet | Zhao, Zhen Xie, Zhiyong Tang, Jianhui Zhang, Gan Ebinghaus, Ralf |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Perfluoroalkyl acids (PFAAs) have been determined in the environment globally. However, studies on the occurrence of PFAAs in marine sediment remain limited. In this study, 16 PFAAs are investigated in surface sediments from the German Bight, which provided a good overview of the spatial distribution. The concentrations of Sum PFAAs ranged from 0.056 to 7.4 ng/g dry weight. The highest concentration was found at the estuary of the River Ems, which might be the result of local discharge source. Perfluorooctane sulfonic acid (PFOS) was the dominant compound and the enrichment of PFOS in sediment might be strongly related to the compound structure itself. The geographical condition of the German Bight influenced the movement of water and sediment, resulting in complex distribution. Following normalization according to total organic carbon (TOC) content, PFAA distributions showed a different picture. Significant linear relationships were found between total PFAA concentrations and TOC (R**2 = 0.50, p b 0.01). Compared with a previous study conducted in the same area, a declining trend was presented for the concentrations of PFOS and perfluorooctanoic acid (PFOA). Compound structure, geographical condition, and organic carbon in the sediment influence the distribution of PFAAs in the German Bight. Environmental risk assessment indicated that the risk from PFOA is negligible, whereas PFOS in marine sediment may present a risk for benthic organisms in the German Bight. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_880151 |
| institution | PANGAEA |
| language | en |
| publishDate | 2015 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Perfluoroalkyl acids in surface sediments of the German Bight in 2011 Zhao, Zhen Xie, Zhiyong Tang, Jianhui Zhang, Gan Ebinghaus, Ralf Carbon, organic, total; Date/Time of event; DEPTH, sediment/rock; Element analyser CHN; Event label; German_Bight_1; German_Bight_10; German_Bight_11; German_Bight_12; German_Bight_14; German_Bight_15; German_Bight_16; German_Bight_17; German_Bight_18; German_Bight_19; German_Bight_2; German_Bight_20; German_Bight_21; German_Bight_22; German_Bight_24; German_Bight_26; German_Bight_27; German_Bight_28; German_Bight_29; German_Bight_30; German_Bight_31; German_Bight_4; German_Bight_7; German_Bight_8; Grab; GRAB; Helmholtz-Zentrum Geesthacht, Institute of Coastal Research; Henicosalfluorodecane sulfonic acid; High-performance liquid chromatography electrospray ionization-tandemmass spectrometry system (HPLC-ESI-MS/MS); HZG; Latitude of event; Longitude of event; Perfluorobutane sulfonic acid; Perfluorodecanoic acid; Perfluorododecanoic acid; Perfluoroheptane sulfonic acid; Perfluoroheptanoic acid; Perfluorohexane sulfonic acid; Perfluorohexanoic acid; Perfluorononanoic acid; Perfluoroocatane sulfonamide; Perfluorooctane sulfonic acid; Perfluorooctanoic acid; Perfluoropentanoic acid; Perfluorotetradecanoic acid; Perfluorotridecanoic acid; Perfluoroundecanoic acid; Sum perfluorinated alkylated substances; Sum perfluorinated carboxylic acids; Sum perfluorosulfonic acids Perfluoroalkyl acids (PFAAs) have been determined in the environment globally. However, studies on the occurrence of PFAAs in marine sediment remain limited. In this study, 16 PFAAs are investigated in surface sediments from the German Bight, which provided a good overview of the spatial distribution. The concentrations of Sum PFAAs ranged from 0.056 to 7.4 ng/g dry weight. The highest concentration was found at the estuary of the River Ems, which might be the result of local discharge source. Perfluorooctane sulfonic acid (PFOS) was the dominant compound and the enrichment of PFOS in sediment might be strongly related to the compound structure itself. The geographical condition of the German Bight influenced the movement of water and sediment, resulting in complex distribution. Following normalization according to total organic carbon (TOC) content, PFAA distributions showed a different picture. Significant linear relationships were found between total PFAA concentrations and TOC (R**2 = 0.50, p b 0.01). Compared with a previous study conducted in the same area, a declining trend was presented for the concentrations of PFOS and perfluorooctanoic acid (PFOA). Compound structure, geographical condition, and organic carbon in the sediment influence the distribution of PFAAs in the German Bight. Environmental risk assessment indicated that the risk from PFOA is negligible, whereas PFOS in marine sediment may present a risk for benthic organisms in the German Bight. |
| title | Perfluoroalkyl acids in surface sediments of the German Bight in 2011 |
| topic | Carbon, organic, total; Date/Time of event; DEPTH, sediment/rock; Element analyser CHN; Event label; German_Bight_1; German_Bight_10; German_Bight_11; German_Bight_12; German_Bight_14; German_Bight_15; German_Bight_16; German_Bight_17; German_Bight_18; German_Bight_19; German_Bight_2; German_Bight_20; German_Bight_21; German_Bight_22; German_Bight_24; German_Bight_26; German_Bight_27; German_Bight_28; German_Bight_29; German_Bight_30; German_Bight_31; German_Bight_4; German_Bight_7; German_Bight_8; Grab; GRAB; Helmholtz-Zentrum Geesthacht, Institute of Coastal Research; Henicosalfluorodecane sulfonic acid; High-performance liquid chromatography electrospray ionization-tandemmass spectrometry system (HPLC-ESI-MS/MS); HZG; Latitude of event; Longitude of event; Perfluorobutane sulfonic acid; Perfluorodecanoic acid; Perfluorododecanoic acid; Perfluoroheptane sulfonic acid; Perfluoroheptanoic acid; Perfluorohexane sulfonic acid; Perfluorohexanoic acid; Perfluorononanoic acid; Perfluoroocatane sulfonamide; Perfluorooctane sulfonic acid; Perfluorooctanoic acid; Perfluoropentanoic acid; Perfluorotetradecanoic acid; Perfluorotridecanoic acid; Perfluoroundecanoic acid; Sum perfluorinated alkylated substances; Sum perfluorinated carboxylic acids; Sum perfluorosulfonic acids |
| url | https://doi.org/10.1594/PANGAEA.880151 |