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| 1 | Contribution of precursor compounds to the release of per-and polyfluoroalkyl substances(PFASs) from waste water treatment plants(WWTPs)显示文摘Per-and polyfluoroalkyl substances(PFASs) are ubiquitous in sludge and water from waste water treatment plants, as a result of their incorporation in everyday products and industrial processes. In this study, we measured several classes of persistent PFASs,precursors, transformation intermediates, and newly identified PFASs in influent and effluent sewage water and sludge from three municipal waste water treatment plants in Sweden, sampled in 2015. For sludge, samples from 2012 and 2014 were analyzed as well.Levels of precursors in sludge exceeded those of perfluoroalkyl acids and sulfonic acids(PFCAs and PFSAs), in 2015 the sum of polyfluoroalkyl phosphoric acid esters(PAPs) were 15–20 ng/g dry weight, the sum of fluorotelomer sulfonic acids(FTSAs) was 0.8–1.3 ng/g,and the sum of perfluorooctane sulfonamides and ethanols ranged from non-detected to 3.2 ng/g. Persistent PFSAs and PFCAs were detected at 1.9–3.9 ng/g and 2.4–7.3 ng/g dry weight, respectively. The influence of precursor compounds was further demonstrated by an observed substantial increase for a majority of the persistent PFCAs and PFSAs in water after waste water treatment. Perfluorohexanoic acid(PFHxA), perfluorooctanoic acid(PFOA), perfluorohexane sulfonic acid(PFHxS), and perfluorooctane sulfonic acid(PFOS)had a net mass increase in all WWTPs, with mean values of 83%, 28%, 37% and 58%,respectively. The load of precursors and intermediates in influent water and sludge combined with net mass increase support the hypothesis that degradation of precursor compounds is a significant contributor to PFAS contamination in the environment. | Ulrika Eriksson Peter Haglund Anna K?rrman | 2017 | Journal of Environmental Sciences2017，29，11： | 5 |
| 2 | Malignancy in pheochromocytomas显示文摘 | Salmenkivi K Heikkila P Haglund C | 2004 | APMIS2004，112，9： | 1 |
| 3 | Inflammatory mediators in intervertebral disk degeneration and discogenic pain显示文摘 | Wuertz K Haglund L | 2013 | Global Spine J2013，3，3： | 1 |
| 4 | The role of ubiquitylation in receptor endocytosis and endosomal sorting显示文摘 | Haglund K Dikic I | 2012 | J Cell Sci2012，125，2： | 1 |
| 5 | An in Site Gelfingsystem for Parenteral Delivery显示文摘 | Haglund B O Joshi R Himmelstein K J | 1996 | Controlled Release1996，41，： | 1 |
| 6 | Little or no ability of obestatin to interact with ghrelin or modify motility in the rat gastrointestinal tract显示文摘 | Bassil A K Haglund Y Brown J | 2007 | Br J Pharmacol2007，150，1： | 1 |
| 7 | Initial or delayed chemotherapy with best supportive care in advanced gastric cancer显示文摘 | Glimelius B Hoffmann K Haglund U | 1994 | Ann Oncol1994，5，： | 1 |
| 8 | Expression of human immunodeficiency virus type 1 Gag protein precursor and envelope proteins from a vesicular stomatitis virus recombinant: high-level production of virus-like particles containing HIV envelope 显示文摘 | Haglund K Forman J Krausslich H G | 2000 | Virology2000，268，： | 1 |
| 9 | Analysis of non-ortho polychlorinated biphenyls and polychlorinated naphthalenes in Swedish dioxin survey samples 显示文摘 | Asplund L Grafstrom A K Haglund P | 1990 | Chemosphere1990，20，1012： | 1 |
| 10 | Inflammatory mediators in intervertebral disc degen- eration and discogenic pain显示文摘 | Wuertz K Haglund L | 2013 | Global Spine J2013，3，3： | 1 |
| 11 | Malignancy in heochromocytomas显示文摘 | Salmenkivi K Heikkila P Haglund C | 2004 | APMIS2004，112，9： | 1 |
| 12 | Selective pressurized liquid extraction of polychlorinated dibenzo-p-dioxins, dibenzofurans and dioxin-like polychlorinated biphenyls from food and feed samples 显示文摘 | Wiberg K Sporting S Haglund P Bjorklund E | 2007 | Journal of Chromatography A2007，1138，12： | 1 |
| 13 | Fibroblast growth factors and their receptors in cancer 显示文摘 | Wesche J Haglund K Haugsten EM | 2011 | Biochem J2011，437，2： | 1 |
| 14 | Fibroblast growthfactors and their receptors in cancer显示文摘 | WESCHE J HAGLUND K HAUGSTEN E M | 2011 | Biochem J2011，437，2： | 1 |
| 15 | Specification ofSUMO1-and SUMO2-interacting motifs显示文摘 | Hecker CM Rabiller M Haglund K | 2006 | J Biol Chem2006，281，16： | 1 |
| 16 | Fibroblast growth factors and their receptors in cancer显示文摘 | Wesche J Haglund K Haugsten EM | 2011 | Biochem J2011，437，2： | 1 |
| 17 | High-level primary CD8(+)T-cell response to human immunodeficiency virus type 1 Gag and Env generated by vaccination with recombinant vesicular stomatitis viruses显示文摘 | Haglund K Leiner I Kerksiek K | 2002 | J Virol2002，76，6： | 1 |
| 18 | Fibroblast growth factors and their receptors in cancer显示文摘 | WESCHE J HAGLUND K HAUGSTEN E M | 2011 | Biochem J2011，437，2： | 1 |
| 19 | Outdoor pond cultivation of the subtropical marine red alga Gracilaria tenuistipitata in brackish water in Sweden:growth,nutrient uptake,co-cultivation with rainbow trout and epiphyte control显示文摘 | Haglund K Pedersen M | 1993 | J Appl Phycol1993，5，： | 1 |
| 20 | Reperfusion injury induces apoptosis in rabbit eardiomyocytes 显示文摘 | Haglund R A Burleson K O Kloner R A | 1994 | J Clin Invest1994，94，4： | 1 |
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