/* DATA DESCRIPTION:
Citation:	Jahnke, Annika; Berger, Urs; Ebinghaus, Ralf; Temme, Christian (2007): Polyfluorinated alkyl substances (PFAS) in high-volume air samples collected during Polarstern expedition ANT-XXIII/1 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.610160, 
	Supplement to: Jahnke, A et al. (2007): Latitudinal gradient of airborne polyfluorinated alkyl substances in the marine atmosphere between Germany and South Africa (53° N-33° S). Environmental Science and Technology, 41(9), 3055 -3061, https://doi.org/10.1021/es062389h
Abstract:	Neutral, volatile polyfluorinated alkyl substances (PFAS) were determined in high-volume air samples collected onboard the German research vessel Polarstern during cruise ANT-XXIII/1 between Bremerhaven, Germany (53° N) and Capetown, Republic of South Africa (33° S) in fall 2005. An optimized and validated analytical protocol was used for the determination of several fluorotelomer alcohols (FTOHs) as well as N-alkylated fluorooctane sulfonamides and sulfonamidoethanols (FOSAs/FOSEs). Quantitative analyses were done by gas chromatography-mass spectrometry. This study provides the first concentration data of airborne PFAS from the Southern Hemisphere. Results indicate a strongly decreasing concentration gradient from the European continent toward less industrialized regions. The study confirms that airborne PFAS are mainly restricted to the Northern Hemisphere with a maximum concentration of 190 pg/m**3 (8:2 FTOH) in the first sample collected in the channel between the European mainland and the UK. However, south of the equator, trace amounts of several FTOHs and FOSAs with a maximum of 14 pg/m**3 (8:2 FTOH) could still be detected. Furthermore, a selection of ionic PFAS including perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) were determined in the particulate phase of high-volume air samples by liquid chromatography-mass spectrometry. Levels of ionic PFAS were almost 2 orders of magnitude lower than those of neutral PFAS, with maximum concentrations in the first sample of 2.5 pg/m**3 (PFOS) and 2.0 pg/m**3 (PFOA).
Coverage:	MEDIAN LATITUDE: 25.773333 * MEDIAN LONGITUDE: -3.226667 * SOUTH-BOUND LATITUDE: -17.000000 * WEST-BOUND LONGITUDE: -20.000000 * NORTH-BOUND LATITUDE: 54.000000 * EAST-BOUND LONGITUDE: 5.000000
	DATE/TIME START: 2005-10-13T00:00:00 * DATE/TIME END: 2005-11-11T00:00:00
Event(s):	PS69/1-track * LATITUDE START: 53.563960 * LONGITUDE START: 8.548130 * LATITUDE END: -33.900000 * LONGITUDE END: 18.400000 * DATE/TIME START: 2005-10-13T06:00:00 * DATE/TIME END: 2005-11-18T00:00:00 * CAMPAIGN: ANT-XXIII/1 (PS69) (URI: https://doi.org/10.2312/BzPM_0556_2007) * BASIS: Polarstern (URI: https://doi.org/10.17815/jlsrf-3-163) * METHOD/DEVICE: Underway cruise track measurements (CT)
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	2 datasets
*/
/* TABULAR SUMMARY OF DATASETS LISTED IN THIS COLLECTION: */
Filename	Citation of child dataset
ANT-XXIII_1_ionicPFAS.tab	Jahnke, Annika (2007): Ionic polyfluorinated alkyl substances (PFAS) in high-volume air samples collected during Polarstern expedition ANT-XXIII/1 (Table 3). https://doi.org/10.1594/PANGAEA.610011
ANT-XXIII_1_PFAS.tab	Jahnke, Annika (2007): Neutral polyfluorinated alkyl substances (PFAS) in high-volume air samples collected during Polarstern expedition ANT-XXIII/1 (Table 2). https://doi.org/10.1594/PANGAEA.610010
