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Environmental Persistence And Migration Of Pentachlorophenol Wood Pole Preservative Part I
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Book Synopsis Environmental Persistence and Migration of Pentachlorophenol, Wood Pole Preservative, Part I by :
Download or read book Environmental Persistence and Migration of Pentachlorophenol, Wood Pole Preservative, Part I written by and published by . This book was released on 1989 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pentachlorophenol (PCP) is widely used by the electric utility industry as a wood preservative for transmission and distribution poles. Low levels of PCP are now ubiquitous in the Canadian environment and both federal and provincial regulators have been reviewing its status and uses. Ontario Hydro, anticipating possible challenges to the continued use of PCP as a pole preservative, has initiated a study into the potential for migration of PCP away from pole installations, and has installed test poles treated with alternative preservatives. This report contains a literature review of the environmental contamination and toxicity of PCP, the degradation processes, results of fugacity modelling of PCP pathways (Level I and II), a review of the research to date on the migration of PCP from treated utility poles, and a summary of the research trends in this area.
Book Synopsis Wood Preservative Pesticides by : United States. Environmental Protection Agency. Office of Pesticide Programs. Registration Division
Download or read book Wood Preservative Pesticides written by United States. Environmental Protection Agency. Office of Pesticide Programs. Registration Division and published by . This book was released on 1984 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wood Preservative Pesticides by : United States. Environmental Protection Agency. Office of Pesticide Programs. Registration Division
Download or read book Wood Preservative Pesticides written by United States. Environmental Protection Agency. Office of Pesticide Programs. Registration Division and published by . This book was released on 1984 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Protection written by and published by . This book was released on 1991 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Persistence, Leaching, and Bioavailability of CCA and Pentachlorophenol Wood Preservatives by : Keith R. Solomon
Download or read book Persistence, Leaching, and Bioavailability of CCA and Pentachlorophenol Wood Preservatives written by Keith R. Solomon and published by . This book was released on 1990 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994-10 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pentachlorophenol, a Wood Preservative by :
Download or read book Pentachlorophenol, a Wood Preservative written by and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microlog, Canadian Research Index by :
Download or read book Microlog, Canadian Research Index written by and published by . This book was released on 1989 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.
Book Synopsis Ontario Government Publications by :
Download or read book Ontario Government Publications written by and published by . This book was released on 1990 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cumulates monthly issues and includes additional material.
Book Synopsis Report of Proceedings by : American Wood-Preservers' Association. Meeting
Download or read book Report of Proceedings written by American Wood-Preservers' Association. Meeting and published by . This book was released on 1998 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members in each vol. (except v. 2).
Book Synopsis Assessment of the Environmental Effects Associated with Wooden Bridges Preserved with Creosote, Pentachlorophenol, Or Chromated Copper Arsenate by : Kenneth M. Brooks
Download or read book Assessment of the Environmental Effects Associated with Wooden Bridges Preserved with Creosote, Pentachlorophenol, Or Chromated Copper Arsenate written by Kenneth M. Brooks and published by . This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Ontario Government Publications Annual Catalogue by :
Download or read book Ontario Government Publications Annual Catalogue written by and published by . This book was released on 1988 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wood Handbook by : Forest Products Laboratory (U.S.)
Download or read book Wood Handbook written by Forest Products Laboratory (U.S.) and published by . This book was released on 1974 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Copper Naphthenate Wood - Preservative by :
Download or read book Copper Naphthenate Wood - Preservative written by and published by . This book was released on 1949 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood and Fiber Science written by and published by . This book was released on 1983 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: