Environmental Impacts of Treated Wood PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Environmental Impacts of Treated Wood PDF full book. Access full book title Environmental Impacts of Treated Wood by Timothy G. Townsend. Download full books in PDF and EPUB format.
Author: Timothy G. Townsend
Publisher: CRC Press
ISBN: 1420006215
Category : Science
Languages : en
Pages : 521
Get Book
Book Description
Responding to a heightened awareness of the possible adverse effect of treated wood, this book presents multidisciplinary research results and fundamental information on regulations, wood treatment alternatives, and documentation of environmental releases. It examines the impact of treated wood on water, soil, and organisms. Several chapters discuss ways to measure exposure and review various approaches to risk assessment and management. Case studies address human health effects of exposure. The book also presents state-of-the-art disposal technologies, new preservative compounds, and recent developments related to phase outs of certain treated wood products.
Author: Timothy G. Townsend
Publisher: CRC Press
ISBN: 1420006215
Category : Science
Languages : en
Pages : 521
Get Book
Book Description
Responding to a heightened awareness of the possible adverse effect of treated wood, this book presents multidisciplinary research results and fundamental information on regulations, wood treatment alternatives, and documentation of environmental releases. It examines the impact of treated wood on water, soil, and organisms. Several chapters discuss ways to measure exposure and review various approaches to risk assessment and management. Case studies address human health effects of exposure. The book also presents state-of-the-art disposal technologies, new preservative compounds, and recent developments related to phase outs of certain treated wood products.
Author: Stan Lebow
Publisher:
ISBN:
Category : Wood preservatives
Languages : en
Pages : 10
Get Book
Book Description
Author:
Publisher:
ISBN:
Category : Wood preservatives
Languages : en
Pages : 134
Get Book
Book Description
Author: Kenneth M. Brooks
Publisher:
ISBN:
Category : Wood preservatives
Languages : en
Pages : 108
Get Book
Book Description
Timber bridges provide an economical alternative to concrete and steel structures, particularly in rural areas with light to moderate vehicle traffic. Wooden components of these bridges are treated with chromated copper arsenate type C (CCA), pentachlorophenol, or creosote to prolong the life of the structure from a few years to many decades. This results in reduced transportation infrastructure costs and increased public safety. However, the preservative used to treat the wooden components in timber bridges is lost to the environment in small amounts over time. This report describes the concentration of wood preservatives lost to adjacent environments and the biological response to these preservatives as environmental contaminants. Six bridges from various states were examined for risk assessment: two creosote treated bridges, two pentachlorophenol-treated bridges, and two CCA-treated bridges. In all cases, the largest bridges located in biologically active environments associated with slow-flowing water were selected to represent worst-case analyses. Sediment and water column concentrations of preservative were analyzed upstream from, under, and downstream from each bridge. The observed levels of contaminant were compared with available regulatory standards or benchmarks and with the quantitative description of the aquatic invertebrate community sampled from vegetation and sediments. Pentachlorophenol- and creosote-derived polycyclic aromatic hydrocarbons (PAHs) were not observed in the water near any of the selected bridges. However, low levels of PAHs were observed in the sediments under and immediately downstream from these bridges. Pentachlorophenol concentrations did not approach toxicological benchmarks. Sediment concentrations of naphthalene, acenaphthylene, and phenanthrene exceeded the probable effect level. Metal levels at the bridges treated with CCA were less than predicted effect levels, in spite of questionable construction practices. Adverse biological effects were not observed in the aquatic invertebrate community or laboratory bioassays conducted on water and sediments sampled at each of the bridges. Results of this study reveal the need to follow the construction information found in Best Management Practices for the Use of Treated Wood In Aquatic Environments published by Western Wood Preservers Institute. Regulatory benchmarks used in risk assessments of this type need to be indexed to local environmental conditions. The robust invertebrate communities associated with slow-moving streams over soft bottoms were not susceptible to the concentrations of PAHs that would be expected to affect more sensitive taxa, which typically are located in faster moving water over hard bottoms. Contaminants released from timber bridges into these faster systems (where more sensitive taxa are located) are significantly diluted and not found at biologically significant levels.
Author: Forest Products Laboratory (U.S.)
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 448
Get Book
Book Description
"Summarizes information on wood as an engineering material. Properties of wood and wood-base products of particular concern to the architect and engineer are presented, along with discussions of designing with wood and some pertinent uses of wood."--Page ii.
Author: James Scott Groenier
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 52
Get Book
Book Description
Author: Industry and Environment Programme Activity Centre
Publisher: United Nations Environment Programme
ISBN:
Category : Nature
Languages : en
Pages : 124
Get Book
Book Description
Author: Stan Lebow
Publisher:
ISBN:
Category : Leaching
Languages : en
Pages : 40
Get Book
Book Description
Author: C. A. Brebbia
Publisher: WIT Press
ISBN: 1845646045
Category : Business & Economics
Languages : en
Pages : 661
Get Book
Book Description
"The interdisciplinary conference addressed some of the most serious problems affecting sustainable development, issues that must be considered by development projects in order to provide complete solutions. A major motivation for the meeting was to learn from past failures and avoid repeating similar mistakes while attempting to prevent emerging threats to the environmental and ecological systems by developing more constructive and progressive approaches to ensure sustainability"--Publisher information.
Author: Tarek A. Kassim
Publisher: Springer Science & Business Media
ISBN: 9783540002680
Category : Science
Languages : en
Pages : 436
Get Book
Book Description
Volume 1: Concepts, Methodology and Chemical Analysis. This 3-volume reference presents the latest findings in impact assessment of recycled hazardous waste materials on surface and ground waters. Topics covered include chemodynamics, toxicology, modeling and information systems. The book serves as a practical guide for the monitoring, design, management, or conduct of environmental impact assessment. Each volume contains the table of contents of all volumes.
