Difference between revisions of "PFOS"
From Coastal Wiki
(ref) |
|||
| Line 6: | Line 6: | ||
== Notes == | == Notes == | ||
| − | PFOS is a persistent compound, shows little biodegradation and are globally distributed in living organisms. They are found in almost all animals, in almost all environments, including the arctic. | + | PFOS are used in many industrial applications including; fire fighting foams, pesticides and consumer applications like surface coatings for carpets, furniture and paper. <ref name = nob>Nobuyoshi Yamashita, Kurunthachalam Kannan, Sachi Taniyasu, Yuichi Horii, Gert Petrick, Toshitaka Gamo; 2005, A global survey of perfluorinated acids in oceans; Marine Pollution Bulletin, 51, 8-12, 658-668</ref> |
| + | |||
| + | PFOS is a persistent compound, shows little biodegradation and are globally distributed in living organisms. They are found in almost all animals, in almost all environments, including the arctic and the antarctic. | ||
Although they also have a high tendency to [[bioaccumulation|bioaccumulate]], they seem to behave differently from [[organochlorine compounds]], for PFOS no clear relationship of accumulation with age, could be determined. | Although they also have a high tendency to [[bioaccumulation|bioaccumulate]], they seem to behave differently from [[organochlorine compounds]], for PFOS no clear relationship of accumulation with age, could be determined. | ||
| − | + | ||
| + | <ref name = vijver>K. I. Van de Vijver, P. T. Hoff, K. Das, W. Van Dongen, E. L. Esmans, U. Siebert, J. M. Bouquegneau, R. Blust, W. M. De Coen; 2004; Baseline study of perfluorochemicals in harbour porpoises (Phocoena phocoena) from Northern Europe; Marine Pollution Bulletin, 48, 9-10, 992-997</ref> | ||
| + | These compounds have been present in [[biota]] for decades, but only recently there concern has been raised about their potential environmental and biological effects. Until present there is a lot of uncertainty about their exact environmental fate and their accumulation patterns. | ||
<ref name = is>Isabel Cunha, Philippe Hoff, Kristin Van de Vijver, Lúcia Guilhermino, Eddy Esmans, Wim De Coen, 2005, Baseline study of perfluorooctane sulfonate occurrence in mussels, Mytilus galloprovincialis, from north-central portuguese estuaries Marine Pollution Bulletin; 50; 10; 1128-1132</ref> | <ref name = is>Isabel Cunha, Philippe Hoff, Kristin Van de Vijver, Lúcia Guilhermino, Eddy Esmans, Wim De Coen, 2005, Baseline study of perfluorooctane sulfonate occurrence in mussels, Mytilus galloprovincialis, from north-central portuguese estuaries Marine Pollution Bulletin; 50; 10; 1128-1132</ref> | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | <ref>Hoff, P.T.; Van de Vijver, K.; Van Dongen, W.; Esmans, E.L.; Blust, R.; De Coen, W.M. (2003). Perfluorooctane sulfonic acid in bib (Trisopterus luscus) and plaice (Pleuronectes platessa) from the western Scheldt and the Belgian North Sea: distribution and biochemical effects. Environ. Toxicol. Chem. 22(3): 608-614</ref> | + | Concentrations which have been shown in laboratory conditions to cause acute toxicity in fish range from 4,7 mg/l till 370 mg/l, depending on the species. The lowest concentration which significantly affected the growth an survival of a fish species was 0,3 mg/l. Environmental concentrations can rise up to 0,2 µg in the heavily polluted Tokyo Bay. <ref name = nob>Nobuyoshi Yamashita, Kurunthachalam Kannan, Sachi Taniyasu, Yuichi Horii, Gert Petrick, Toshitaka Gamo; 2005, A global survey of perfluorinated acids in oceans; Marine Pollution Bulletin, 51, 8-12, 658-668</ref> |
| + | PFOS has been shown to influence the lipid metabolism (in rodents), to reduce weight gain and food consumption. The latter leads to abortions and reduced fetal weight. It is also suspected to induce liver necrosis. | ||
| + | <ref>Hoff, P.T.; Van de Vijver, K.; Van Dongen, W.; Esmans, E.L.; Blust, R.; De Coen, W.M. (2003). Perfluorooctane sulfonic acid in bib (Trisopterus luscus) and plaice (Pleuronectes platessa) from the western Scheldt and the Belgian North Sea: distribution and biochemical effects. Environ. Toxicol. Chem. 22(3): 608-614</ref> | ||
==Refernces== | ==Refernces== | ||
<references/> | <references/> | ||
Revision as of 09:42, 27 July 2009
Definition of perfluorooctanesulfonic acid:
Perfluorooctanesulfonic acid (PFOS) is a man-made global pollutant. PFOS is suspected of compromising the immune system of wildlife and a small segment of highly exposed people globally.[1]
This is the common definition for perfluorooctanesulfonic acid, other definitions can be discussed in the article
|
Notes
PFOS are used in many industrial applications including; fire fighting foams, pesticides and consumer applications like surface coatings for carpets, furniture and paper. [2]
PFOS is a persistent compound, shows little biodegradation and are globally distributed in living organisms. They are found in almost all animals, in almost all environments, including the arctic and the antarctic. Although they also have a high tendency to bioaccumulate, they seem to behave differently from organochlorine compounds, for PFOS no clear relationship of accumulation with age, could be determined.
[3] These compounds have been present in biota for decades, but only recently there concern has been raised about their potential environmental and biological effects. Until present there is a lot of uncertainty about their exact environmental fate and their accumulation patterns. [4]
Concentrations which have been shown in laboratory conditions to cause acute toxicity in fish range from 4,7 mg/l till 370 mg/l, depending on the species. The lowest concentration which significantly affected the growth an survival of a fish species was 0,3 mg/l. Environmental concentrations can rise up to 0,2 µg in the heavily polluted Tokyo Bay. [2] PFOS has been shown to influence the lipid metabolism (in rodents), to reduce weight gain and food consumption. The latter leads to abortions and reduced fetal weight. It is also suspected to induce liver necrosis. [5]
Refernces
- ↑ http://en.wikipedia.org/wiki/Perfluorooctanesulfonic_acid
- ↑ 2.0 2.1 Nobuyoshi Yamashita, Kurunthachalam Kannan, Sachi Taniyasu, Yuichi Horii, Gert Petrick, Toshitaka Gamo; 2005, A global survey of perfluorinated acids in oceans; Marine Pollution Bulletin, 51, 8-12, 658-668
- ↑ K. I. Van de Vijver, P. T. Hoff, K. Das, W. Van Dongen, E. L. Esmans, U. Siebert, J. M. Bouquegneau, R. Blust, W. M. De Coen; 2004; Baseline study of perfluorochemicals in harbour porpoises (Phocoena phocoena) from Northern Europe; Marine Pollution Bulletin, 48, 9-10, 992-997
- ↑ Isabel Cunha, Philippe Hoff, Kristin Van de Vijver, Lúcia Guilhermino, Eddy Esmans, Wim De Coen, 2005, Baseline study of perfluorooctane sulfonate occurrence in mussels, Mytilus galloprovincialis, from north-central portuguese estuaries Marine Pollution Bulletin; 50; 10; 1128-1132
- ↑ Hoff, P.T.; Van de Vijver, K.; Van Dongen, W.; Esmans, E.L.; Blust, R.; De Coen, W.M. (2003). Perfluorooctane sulfonic acid in bib (Trisopterus luscus) and plaice (Pleuronectes platessa) from the western Scheldt and the Belgian North Sea: distribution and biochemical effects. Environ. Toxicol. Chem. 22(3): 608-614
