Detection of Polybrominated Diphenyl Ethers in Ambient Air at a Wastewater Treatment Facility in Tampa, Florida PDF Download
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Author: Brenda L. White
Publisher:
ISBN:
Category :
Languages : en
Pages :
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The goal of this study was to quantify the ambient air concentrations of polybrominated diphenyl ethers (PBDEs) from three locations within the Howard Curren Wastewater Treatment Facility located in Tampa, Florida. PBDEs have been linked to endocrine disruption, cancer, developmental concerns in children, as well as other toxic effects; however their precise roles concerning these deleterious effects remains to be determined. The present study was motivated by these potential health concerns posed by inhalational exposure to PBDEs. Ambient air was monitored with a Tisch Environmental PUF high volume sampler for 48 hours with collection on three types of media-quarts filter, PUF (polyurethane foam) and XAD-2 resin. The samples were then analyzed with GC/MS (gas chromatography/mass spectrometry) for eight PBDEs that are routinely detected. The results showed elevated levels of PBDEs at the 2nd and 3rd sampling locations indicating a possible increased presence in the ambient air at the facility. Levels of PBDE 47 ranked highest amongst the detected congeners. PBDE 209 was not detected at any site. The present results indicate that PBDEs may lead to an inhalational exposure, thus future experimentation is needed to fully evaluate the health complications associated with inhalational exposure route to PBDEs.
Author: Brenda L. White
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The goal of this study was to quantify the ambient air concentrations of polybrominated diphenyl ethers (PBDEs) from three locations within the Howard Curren Wastewater Treatment Facility located in Tampa, Florida. PBDEs have been linked to endocrine disruption, cancer, developmental concerns in children, as well as other toxic effects; however their precise roles concerning these deleterious effects remains to be determined. The present study was motivated by these potential health concerns posed by inhalational exposure to PBDEs. Ambient air was monitored with a Tisch Environmental PUF high volume sampler for 48 hours with collection on three types of media-quarts filter, PUF (polyurethane foam) and XAD-2 resin. The samples were then analyzed with GC/MS (gas chromatography/mass spectrometry) for eight PBDEs that are routinely detected. The results showed elevated levels of PBDEs at the 2nd and 3rd sampling locations indicating a possible increased presence in the ambient air at the facility. Levels of PBDE 47 ranked highest amongst the detected congeners. PBDE 209 was not detected at any site. The present results indicate that PBDEs may lead to an inhalational exposure, thus future experimentation is needed to fully evaluate the health complications associated with inhalational exposure route to PBDEs.
Author: Dudsadee Muenhor
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Author: Kristy Siegel
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Sludge was found to carry the largest mass loading at 14.2 lb/day (sum7)PBDE. Of the total mass loading of PBDEs from the WWTP, sludge is responsible for 86.7%, followed by reclaimed water and effluent (11.7% and 1.6%, respectively). The mass loading from air was negligible with less than 0.01% contribution to the total mass loading. Whereas reclaimed water overall had higher PBDE congener mean concentrations than the effluent, the independent samples t-test found no statistically significant differences between the two groups. The results of this study can be used to improve the wastewater treatment process to reduce the impact of PBDEs being released into the environment by WWTPs, and to educate the public on utilizing reclaimed water in a safe and healthy manner.
Author: Anna Palm
Publisher: Nordic Council of Ministers
ISBN: 928931074X
Category : Nature
Languages : en
Pages : 81
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Author:
Publisher:
ISBN:
Category : Diphenyl ethers
Languages : en
Pages : 628
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Author: Candice Simmons
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Polybrominated diphenyl ethers (PBDEs) are a widely used class of flame retardants that are important sources for contamination in the marine environment. Sediments serve as a large reservoir for PBDEs due to their large sorption capacity. This research assessed the presence and distribution of PBDEs in Hillsborough Bay, a subdivision of Tampa Bay, FL, by determining levels in surface sediment samples, creating a historical profile of the contaminant in a sediment core taken from within the bay, and investigating sediment characteristics that control their distribution. Compositional patterns and temporal distributions of 8 of the 209 congeners of PBDEs (BDE-28, -47, -99, -100, -153, -154, -183 and 209) were determined in sediment surface samples and a sediment core collected throughout the study area. Contaminant concentrations varied spatially due to proximity to sources and the spatial variability of physical processes that suspend or remove contaminants from the water column. Concentrations in the bay also varied in time with factors such as wind, precipitation, and subsequent freshwater runoff. PBDE contamination in surficial sediments from various regions of Tampa Bay is not well correlated with sediment grain size or organic matter content, but these factors may be more important in suspended sediments which may control the fate of these contaminants in the bay. The results from this investigation can be used in understanding the extent of PBDE pollution, identifying sources, as well as implementing management strategies for Hillsborough Bay.
Author: L. Webster
Publisher:
ISBN: 9788774820758
Category : Chemical oceanography
Languages : en
Pages : 0
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Author: Rebecca Marie Jensen
Publisher:
ISBN:
Category : Public health
Languages : en
Pages : 150
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Author: Elizabeth Ndunda
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
Environmental pollution has been a challenging phenomenon in most developing countries, due to the weak enforcement of environmental regulations. As a result, humans and animals are exposed to different environmental pollutants, which threaten their very existence. Some of the emerging pollutants of great concern are polybrominated diphenyl ethers (PBDEs) since they are categorized as probable human carcinogens and are also known to bioaccumulate in fatty tissues of animals and humans, reaching toxic levels upon continued exposure. Monitoring of these pollutants is therefore paramount as it contributes to addressing the problem of human exposure and environmental pollution. Their monitoring involves sample preparation methods followed by quantification with various detection techniques. Sample preparation methods that aim at reducing matrix interferences, enriching analytes and transfer of analytes to a desirable solvent, have evolved from conventional methods to advanced methods that facilitate the detection of these chemicals at very low concentrations. Likewise, detection techniques have advanced from chromatographic detection techniques to miniaturized systems that involve sensors. This chapter discusses PBDEs as emerging pollutants, their sources, and toxicological implications on humans, as well as advances in sample preparation methods and detection techniques in the determination of PBDEs.
Author: Patrick William Bradley
Publisher:
ISBN:
Category : Polybrominated diphenyl ethers
Languages : en
Pages : 192
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