Long-Chain Perfluorinated Chemicals (PFCs) Action Plan
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چکیده
Long-chain perfluorinated chemicals (PFCs) are found world-wide in the environment, wildlife, and humans. They are bioaccumulative in wildlife and humans, and are persistent in the environment. To date, significant adverse effects have not been found in the general human population; however, significant adverse effects have been identified in laboratory animals and wildlife. Given the long half-life of these chemicals in humans (years), it can reasonably be anticipated that continued exposure could increase body burdens to levels that would result in adverse outcomes.
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Long-Chain Perfluorinated Chemicals (PFCs) Action Plan
Long-chain perfluorinated chemicals (PFCs) are found world-wide in the environment, wildlife, and humans. They are bioaccumulative in wildlife and humans, and are persistent in the environment. To date, significant adverse effects have not been found in the general human population; however, significant adverse effects have been identified in laboratory animals and wildlife. Given the long half...
متن کاملChanges in synaptic transmission, calcium current, and neurite growth by perfluorinated compounds are dependent on the chain length and functional group.
Scientific and public concerns on perfluorinated compounds (PFCs) are increasingly growing because of their environmental persistency, bioaccumulation, and extensive distribution throughout the world. Little is known about the effects of PFCs on neural function and the underlying mechanisms. Recent evidence suggests that the toxicological effects of PFCs are closely correlated with their carbon...
متن کاملTranscriptional effects of perfluorinated compounds in rat hepatoma cells.
Perfluorooctanesulfonate (PFOS) is the terminal degradation product of many commercially used perfluorinated compounds, and most of the toxicity testing to date has focused on its potential biological effects. While PFOS has been extensively studied, other PFCs including replacement chemicals such as perfluorobutanesulfonate (PFBS) and perfluorobutyric acid (PFBA), have not been well characteri...
متن کاملPERFLUORINATED CHEMICALS IN SURFACE WATERS AND SEDIMENTS FROM THE CONASAUGA, OOSTANAULA, AND COOSA RIVERS AND THEIR BIOACCUMULATION IN THE AQUATIC OLIGOCHAETE, Lumbriculus varie- gatus
Concentrations of perfluorinated chemicals (PFCs) were measured in surface waters and sediments from the Coosa River watershed to examine their distribution downstream of a suspected source. Samples from eight sites were analyzed using liquid chromatographytandem mass spectrometry. To examine PFC bioaccumulation, sediments were also utilized in 28-d exposures with the aquatic oligochaete, Lumbr...
متن کاملPassive sampling of perfluorinated chemicals in water: in-situ calibration.
Perfluorinated chemicals (PFCs) have been recognised as environmental pollutants that require monitoring. A modified polar organic chemical integrative sampler (POCIS) is able to quantify aqueous PFCs. However, with varying external water velocity, PFC sampling rates (Rs) may change, affecting accuracy of derived water concentrations. To facilitate field deployment of this sampler, two methods ...
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تاریخ انتشار 2009