Linked Life Data

15750772

Source:http://linkedlifedata.com/resource/pubmed/id/15750772

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-5-11
pubmed:abstractText
Perfluorooctane sulfonic acid (PFOS) is an anthropogenic contaminant detected in various environmental and biologic matrices. This compound is a fluorinated surfactant, a class of molecules renowned for their persistence and their global distribution but for which few ecotoxicological data are currently available, especially under field conditions. The toxicity of PFOS to the aquatic macrophytes Myriophyllum sibiricum and M. spicatum was investigated using 12,000 L outdoor microcosms. Replicate microcosms (n = 3) were treated with 0.3, 3, 10, and 30 mg/L PFOS as the potassium salt and assessed at regular intervals during a period of 42 days. M. sibiricum was more sensitive to PFOS under these simulated field conditions than M. spicatum. Toxicity was observed in the evaluated end points at > 3 mg/L PFOS for EC10s and > 12 mg/L PFOS for EC50s for M. spicatum and in M. sibiricum at > 0.1 mg/L PFOS for EC10s and > 1.6 mg/L PFOS for EC50s. The no observed-effect concentration (NOEC) for M. spicatum was consistently > or = 11.4 mg/L PFOS, whereas the NOEC for M. sibiricum was > or = 0.3 mg/L PFOS. A risk assessment for these plants estimated a negligible probability of toxicity being observed in these plants from PFOS exposure at current environmental concentrations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0090-4341
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
329-37
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Microcosm evaluation of the toxicity and risk to aquatic macrophytes from perfluorooctane sulfonic acid.
pubmed:affiliation
Centre for Toxicology, Department of Environmental Biology, University of Guelph, Bovey Administrative Building, Guelph, Ontario, N1G 2W1, Canada.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't