Author: Jerre G. Sims
Publisher:
ISBN:
Category : Dredging spoil
Languages : en
Pages : 44
Book Description
Risk of Pore Water Hydrogen Sulfide Toxicity in Dredged Material Bioassays
Author: Jerre G. Sims
Publisher:
ISBN:
Category : Dredging spoil
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Dredging spoil
Languages : en
Pages : 44
Book Description
Risk of Pore Water Hydrogen Sulfide Toxicity in Dredged Material Bioassays
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Generally, hydrogen sulfide is not treated as a contaminant of concern in the regulatory evaluation of dredged material since it undergoes rapid oxidation and dilution during dredging and disposal. However, because dredged material is evaluated using effects-based testing (i.e., whole sediment and elutriate toxicity tests), there is the potential for H2S to exert toxicity and confound the regulatory decision-making process. To evaluate the potential for hydrogen sulfide toxicity in dredged material bioassays, a literature review and survey to U.S. Army Corps of Engineers Divisions and Districts were conducted. Data included (a) reported environmental pore water exposure concentrations of hydrogen sulfide and (b) effects concentrations shown to cause toxicity in laboratory studies with aquatic species. While the majority (>60 percent) of reported environmental pore water concentrations were>100 micronMeter H2S/1, almost all (90 percent) of reported effects were found at concentrations 400 micronMeter HzS/1. This simple comparison of reported exposure and effects concentrations suggests that there is a strong Potential for hydrogen sulfide toxicity in dredged material bioassays. However, a number of biases in this limited data set are discussed that must be considered before any definitive conclusions can be drawn.
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Generally, hydrogen sulfide is not treated as a contaminant of concern in the regulatory evaluation of dredged material since it undergoes rapid oxidation and dilution during dredging and disposal. However, because dredged material is evaluated using effects-based testing (i.e., whole sediment and elutriate toxicity tests), there is the potential for H2S to exert toxicity and confound the regulatory decision-making process. To evaluate the potential for hydrogen sulfide toxicity in dredged material bioassays, a literature review and survey to U.S. Army Corps of Engineers Divisions and Districts were conducted. Data included (a) reported environmental pore water exposure concentrations of hydrogen sulfide and (b) effects concentrations shown to cause toxicity in laboratory studies with aquatic species. While the majority (>60 percent) of reported environmental pore water concentrations were>100 micronMeter H2S/1, almost all (90 percent) of reported effects were found at concentrations 400 micronMeter HzS/1. This simple comparison of reported exposure and effects concentrations suggests that there is a strong Potential for hydrogen sulfide toxicity in dredged material bioassays. However, a number of biases in this limited data set are discussed that must be considered before any definitive conclusions can be drawn.
Method for assessing the chronic toxicity of marine and estuarine sedimentassociated contaminants with the amphipod Leptocheirus Plumulosus
Author:
Publisher: DIANE Publishing
ISBN: 1428905596
Category :
Languages : en
Pages : 120
Book Description
Publisher: DIANE Publishing
ISBN: 1428905596
Category :
Languages : en
Pages : 120
Book Description
Microscale Testing in Aquatic Toxicology
Author: Peter G. Wells
Publisher: CRC Press
ISBN: 1351431447
Category : Science
Languages : en
Pages : 716
Book Description
Bioassays are among the ecotoxicologist's most effective weapons in the evaluation of water quality and the assessment of ecological impacts of effluents, chemicals, discharges, and emissions on the aquatic environment. Information on these assessment aids is needed throughout the international scientific and environmental management community. This comprehensive reference provides an excellent overview of the small-scale aquatic bioassay techniques and applications currently in use around the world. This special volume is the result of several years of collaboration between Environment Canada and Fisheries and Oceans Canada. Internationally recognized research scientists at many institutions have contributed to this state-of-the-art examination of the exciting, environmentally important field of microscale testing in aquatic toxicology. Microscale Testing in Aquatic Toxicology contains over forty chapters covering relevant principles, new techniques and recent advancements, and applications in scientific research, environmental management, academia, and the private sector.
Publisher: CRC Press
ISBN: 1351431447
Category : Science
Languages : en
Pages : 716
Book Description
Bioassays are among the ecotoxicologist's most effective weapons in the evaluation of water quality and the assessment of ecological impacts of effluents, chemicals, discharges, and emissions on the aquatic environment. Information on these assessment aids is needed throughout the international scientific and environmental management community. This comprehensive reference provides an excellent overview of the small-scale aquatic bioassay techniques and applications currently in use around the world. This special volume is the result of several years of collaboration between Environment Canada and Fisheries and Oceans Canada. Internationally recognized research scientists at many institutions have contributed to this state-of-the-art examination of the exciting, environmentally important field of microscale testing in aquatic toxicology. Microscale Testing in Aquatic Toxicology contains over forty chapters covering relevant principles, new techniques and recent advancements, and applications in scientific research, environmental management, academia, and the private sector.
Porewater Toxicity Testing
Author: Robert Scott Carr
Publisher: Setac Press
ISBN:
Category : Science
Languages : en
Pages : 356
Book Description
Publisher: Setac Press
ISBN:
Category : Science
Languages : en
Pages : 356
Book Description
Processes, Assessment and Remediation of Contaminated Sediments
Author: Danny D. Reible
Publisher: Springer Science & Business Media
ISBN: 1461467268
Category : Technology & Engineering
Languages : en
Pages : 496
Book Description
The purpose of this book is to help engineers and scientists better understand contaminated sediment sites and identify and design remedial approaches that are more efficient and effective. Contaminated sediment management is a difficult and costly exercise that is rarely addressed with easily identified and implemented remedies. It is hoped that this book can help identify and implement management approaches that provide an optimal, if not entirely satisfactory, solution to sediment contaminant problems.
Publisher: Springer Science & Business Media
ISBN: 1461467268
Category : Technology & Engineering
Languages : en
Pages : 496
Book Description
The purpose of this book is to help engineers and scientists better understand contaminated sediment sites and identify and design remedial approaches that are more efficient and effective. Contaminated sediment management is a difficult and costly exercise that is rarely addressed with easily identified and implemented remedies. It is hoped that this book can help identify and implement management approaches that provide an optimal, if not entirely satisfactory, solution to sediment contaminant problems.
Handbook of Dredging Engineering
Author: John B. Herbich
Publisher: McGraw Hill Professional
ISBN: 9780071343060
Category : Reference
Languages : en
Pages : 1522
Book Description
Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impact, to bidding on a project, Handbook of Dredging Engineering, Second Edition, is the last word on modern hydraulic dredging. Edited by John B. Herbich, with contributions by well-know experts in the field, the Handbook examines basic fluid mechanics; dredge pumps; dredging equipment; sediment; pipeline transport of solids; dredging methods; disposal and placement of dredged material; numerical models for predicting the fate of dredged material placed in open water; environmental effects of dredging activities; instrumentation and automation; and project planning. This vital new edition covers major advances made over the last seven years. Three chapters are new to this edition: numerical models for predicting the fate of dredged material...subaqueous capping of contaminated sediment...and removal of contaminated sediments by dredging, with illustrative case studies.
Publisher: McGraw Hill Professional
ISBN: 9780071343060
Category : Reference
Languages : en
Pages : 1522
Book Description
Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impact, to bidding on a project, Handbook of Dredging Engineering, Second Edition, is the last word on modern hydraulic dredging. Edited by John B. Herbich, with contributions by well-know experts in the field, the Handbook examines basic fluid mechanics; dredge pumps; dredging equipment; sediment; pipeline transport of solids; dredging methods; disposal and placement of dredged material; numerical models for predicting the fate of dredged material placed in open water; environmental effects of dredging activities; instrumentation and automation; and project planning. This vital new edition covers major advances made over the last seven years. Three chapters are new to this edition: numerical models for predicting the fate of dredged material...subaqueous capping of contaminated sediment...and removal of contaminated sediments by dredging, with illustrative case studies.
Biological Assessment Guidance for Dredged Material
Author: Environmental Commission. Working Group 8
Publisher: PIANC
ISBN: 2872231552
Category : Contaminated sediments
Languages : en
Pages : 60
Book Description
Publisher: PIANC
ISBN: 2872231552
Category : Contaminated sediments
Languages : en
Pages : 60
Book Description
Environmental Quality of Estuaries of the Carolinian Province
Author:
Publisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 178
Book Description
Publisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 178
Book Description
Methods for Assessing the Toxicity of Sediment-associated Contaminants with Estuarine and Marine Amphipods
Author:
Publisher:
ISBN:
Category : Amphipoda
Languages : en
Pages : 158
Book Description
Publisher:
ISBN:
Category : Amphipoda
Languages : en
Pages : 158
Book Description