Download or read book Trace Polycyclic Aromatic Hydrocarbon Contaminants in San Pablo Bay and Their Bioavailability written by John Justin Baum and published by . This book was released on 2002 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycyclic Aromatic Hydrocarbons in Bottom Sediment and Bioavailability in Streams in the New River Gorge National River and Gauley River National Recreation Area West Virginia 2002 written by Terence Messinger and published by . This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycyclic aromatic hydrocarbons in bottom sediment and bioavailability in streams in the New River Gorge National River and Gauley River National Recreation Area West Virginia 2002 written by and published by DIANE Publishing. This book was released on with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycyclic Aromatic Hydrocarbon Bioavailability in Contaminated Soils and Sediments written by Joseph Paul Kreitinger and published by . This book was released on 2007 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatise on Estuarine and Coastal Science written by and published by Academic Press. This book was released on 2012-03-06 with total page 4604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
Download or read book Assessment of Polycyclic Aromatic Hydrocarbon Partitioning in Selected Sites of the San Francisco Bay written by Pablo Cardinale Pizani and published by . This book was released on 1993 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-04-03 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Workshop Report written by and published by . This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Bioavailability of Particulate Sorbed Polycyclic Aromatic Hydrocarbons written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the behavior of contaminants in the environment is essential for an adequate assessment of a chemicals' fate, subsequent exposure to organisms, and potential for toxic effects. However, contaminant behavior can be complex, involving multiple interactions such as sorption to, and desorption from, particles present in the water column and sediment phase, competition for binding sites, and sequestration deep within particle pores, altering the chemical and biological availability of the contaminants. Therefore, one way to understand a contaminants? behavior in the environment is to assess its bioavailability, or fraction of contaminant available for uptake by organisms. This is generally accomplished by measuring the concentration of a contaminant present in organism tissue, and comparing it to concentrations in different environmental compartments (water, sediment). In this study, numerous toxicokinetic parameters, bioconcentration factors and biota-sediment accumulation factors for 46 polycyclic aromatic hydrocarbons in freshwater mussels were measured. Elimination rates ranged from 0.04 (perylene) to 0.26/day (2,6-dimethylnapthalene), half-lives ranged from 2.6 to 16.5 days, and times to reach 95% of steady-state ranged from 11.3 to 71.3 days. The ranges and individual values compare well to available published literature values. Bioconcentration factors ranged from 1.54 (naphthalene) to 5.20 (coronene), depending on individual analyte and study conditions, but generally increased with increasing PAH hydrophobicity. Bioconcentration factors exhibited sensitivity to concentrations of dissolved and particulate organic carbon present in the water column, and to partition coefficients used to account for these parameters. Additionally, biota-sediment accumulation factors demonstrated that pyrogenic PAH (associated with incomplete-combustion) have much lower bioavailability than petrogenic PAH (associated with petroleum), with average values ranging from 0.
Download or read book Bioavailability of Polycyclic Aromatic Hydrocarbons PAHs in Soils written by Luchun Duan and published by . This book was released on 2014 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fate and distribution of contaminants in soil are controlled by their bioavailability which is of great importance to human and ecological health risk assessments. Risk assessments based on total contaminant loading that assumes 100% bioavailability in soils may overestimate exposure resulting in unnecessarily low remediation goals. Such remediation goals may be neither technically or economically feasible.
Download or read book Polycyclic Aromatic Hydrocarbons written by and published by National Academies. This book was released on 1983-01-01 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2004 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioavailability of Polycyclic Aromatic Hydrocarbons and Its Impact on Bioremediation written by Ilia Rostami and published by . This book was released on 2010 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigated the microbial degradation of polycyclic aromatic hydrocarbons (PAHs) in liquid and soil matrices and the influence of PAH bioavailability on biodegradation and ecological/ human exposure. These research themes were investigated using three PAH contaminated Soils collected from a former wood preservation site, a former manufacturing gas plant and a tram yard site in South Australia.
Download or read book Geochemical Studies of Anthropogenic and Natural Organic Compounds at the Sonoma Baylands Wetland Demonstration Project Site and Adjacent Marshlands Sonoma County California written by and published by . This book was released on 1998 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Medicus written by and published by . This book was released on 2003 with total page 2004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1994 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
