Your search resulted in 232 documents. Displaying 25 entries per page.
New perspectives for wood protection: enzyme-based treatments
2016 - IRG/WP 16-40742
…treatments. One of the main concerns deals with the toxicity of the active compounds employed in the formulations of the preservatives, since they could become a health and environmental issue. Secondly, long-lasting treatments are preferred in order to increase the service life of the treated wood. Weathering…
C Fernández-Costas, S Palanti, M Á Sanromán, D Moldes
Decontamination of sludges, liquids and soils polluted by “class 1, 2 & 3a” and “temporary” wood treatment products from dipping tanks
2016 - IRG/WP 16-50315
…the impacts of pollutants**on the fungi and of the toxicity of the degraded products is to be assessed using physical-chemical methods. The results obtained showed that the experiment was adapted to the chosen fungus species. Product P3 seemed to be the most biodegradable by the fungi, especially by…
A Zaremski, E Wozniak, S Maman, C Zaremski, S Morel
Functional silicones used as a potential tool for the development of non-biocidal wood treatments
2015 - IRG/WP 15-30665
…subjected to severe restrictions because of their toxicity. In fact, new preservation technologies are constantly entering the wood protection market. Silicones are commercially used as hydrophobic agents in several industrial applications. In this study, small Scots pine (Pinus sylvestris) specimens were…
F Lhumeau, C Delaite, F Marchal, F Pochon, M Kutnik
Emerging function for a glutathione transferase in response to wood extractives toxicity
2014 - IRG/WP 14-10824
The first steps of wood degradation by fungi lead to the release of toxic compounds known as extractives. To better understand how lignolytic fungi cope with these products, a transcriptomic analysis of Phanerochaete chrysosporium genes was performed in presen…
A Thuillier, K Chibani, A Deroy, S Dumarçay, P Gérardin, A Kohler, J-P Jacquot, E Gelhaye, M Morel-Rouhier
A comparison of the resistance of pyrethroid-treated wood to damage by Coptotermes acinaciformis in Australia and C. formosanus in China and the USA
2014 - IRG/WP 14-10830
…that C. acinaciformis was more sensitive to pyrethroid toxicity/repellency compared with C. formosanus. Employing a single aboveground method of exposure across three countries, that suited both species of Coptotermes, made it possible to determine unambiguously the actual differences between the species in their…
J Creffield, M Lenz, D Scown, T Evans, Junhong Zhong, B Kard, J Hague, K Brown, E Freytag, J Curole, R Smith, T Shupe
Copper naphthenate treatment for wood crossties and timbers
2014 - IRG/WP 14-30647
…fungi and wood-destroying insects, is its low mammalian toxicity and environmental impact. CuN is a well proven non-restricted use preservative, used extensively by utilities across the US when the environmental impact of their poles is a consideration. CuN was recently adopted by a Class 1 railroad to replace…
J Brient
Bioavailability of Bifenthrin and Fipronil against subterranean termites (Isoptera: Rhinotermitidae) in various soils
2013 - IRG/WP 13-10804
Present study was conducted to determine the toxicity and bioavailability of Biflex (Bifenthrin) and Fipronil (Phenyl pyrazole) termiticides against common termite species Heterotermes indicola (wasmann). Soil was collected from ten different areas of Lahore and was divided into sandy clay loamy (SLC)…
F Manzoor, P Mahnoor, B M Ahmed (Shiday)
Bioactivity of Eucalyptus camaldulensis essential oil against Microcerotermes diversus (Isoptera: Termitidae)
2013 - IRG/WP 13-30631
…This study evaluated the repellency, contact and digestive toxicity of Eucalyptus essential oil in no-choice and choice bioassays and feeding inhibition trials on M. diversus. Concentrations of the essential oil ranged from 0.3 to 1.6 % (g cc-1). The results of the choice tests and feeding inhibition trial showed…
B Habibpour, E Shafiei Alavijeh, A Rasekh
Bibliographical study: Decontamination of wood and soils polluted by pesticides used in wood preservation: focus on Bioremediation methods using microbes
2013 - IRG/WP 13-50292
…decontamination. Knowledge about the feasibility, costs, toxicity and implementation of such projects is also a key point. Likewise, the bibliographical study needed to focus on methods enabling such decontamination pathways and on whether it is possible to consider them using microbes.
Zaremski, L Gastonguay, C Zaremski, S Morel, J Beauchene
Leaching Potential of selected Mississippi Soils Contaminated with Pentachlorophenol (PCP) and Chromated Copper Arsenic (CCA)
2013 - IRG/WP 13-50293
…500 ppm and 1000ppm PCP and 1000 ppm for CCA respectively. Toxicity Characteristic Leaching Procedure (TCLP) results revealed that the Wiggins soil desorption level for 500 and 1000 ppm PCP contaminated soils was significantly higher than other soil types. Dorman and Raymond soils leached the most copper and…
K Ragon, H Borazjani, S Keshani Langroodi, S Diehl
Tributyltin compounds in wood preservation: Health and safety aspects
1986 - IRG/WP 3396
The toxicity of organotin compounds of the general formula RnSnX(4-n) depends strongly on the type of organic substituent R and on the degree of substitution n. The residues X, not bound through a tin-carbon bond, are however of much smaller influence.…
H Schweinfurth, P Günzel, H A B Landsiedel, R Lang, R Reimann, C Schöbel, F Siegmund
Effect of Biodiesel on the Efficacy of Pentachlorophenol Treated Wood
2012 - IRG/WP 12-30584
…PCP. The residual hydrocarbon levels, PCP reduction, toxicity and leaching of PCP of the samples almost remained at the same level for treatments with similar PCP retention values for both of these carriers. For wood treated with PCP in these two different carriers, the rate of decay was generally greater…
S Keshani Langroodi, H Borazjani, D Nicholas, L Prewitt, S V Diehl
Antifungal activities of acetone-soluble Eusideroxylon zwageri and Potoxylon melagangai crude extracts against white rot
2012 - IRG/WP 12-30591
…preservation industry. This study attempts to evaluate the toxicity of Eusideroxylon zwageri and Potoxylon melagangai extractives as potential wood preservatives. These two species are well-known as among the heaviest and very durable timbers. It has been established that natural durability of timbers are associated…
I Jusoh, A Tida Henry, Z Assim, F Badruddin Ahmad, S Ujang
Copper naphthenate treatment for wood pols - a review and update
2012 - IRG/WP 12-30600
…fungi and wood-destroying insects, is its low mammalian toxicity. CuNap is a well-proven non-restricted use preservative, used extensively and specified for environmental reasons by utilities across the US, and recently adopted by a Class One railroad to replace creosote in both their poles and ties. This paper…
J A Brient, M H Freeman
Hydrogels: a solution to reduce boron leachability without reduction of its biodisponibility to wood decaying fungi?
2012 - IRG/WP 12-30602
…and more environmental constraints, such as being of low toxicity in answer to the Biocidal Product Directory, but also to involve waterborne treatments to limit rejection of volatile organic compounds in the atmosphere. Boron preservatives have been described as valuable alternatives for wood protection for…
F Obounou Akong, P Gérardin, M-F Thévenon, S Parant, C Gérardin-Charbonnier
NHA Choice test: Feeding dilemma for Reticulitermes flavipes (Kollar)
2011 - IRG/WP 11-10746
…addition of an untreated pine block abrogates the high toxicity of NHA to R. flavipes (100%) as previously seen in several no-choice tests.
F Green III, S N Kartal, P K Lebow, R A Arango
Gene expression analysis of a copper-tolerant brown rot fungus on MCQ-treated wood
2011 - IRG/WP 11-10748
…is consistent with the theory that fungi remove copper toxicity by forming insoluble copper oxalate crystals. With respect to the late time point, we found sixteen gene models from at least six different glycoside hydrolase families (GH5, GH10, GH12, GH3, GH61, and GH53) that were highly up-regulated (as much as…
J D Tang, A Perkins, S V Diehl
Decay resistance attributes of teak (Tectona grandis L. f.) wood: comparison of the fungicidal activities of quinones
2011 - IRG/WP 11-10752
…Broth dilution technique was used to assess the toxicity of these compounds against Trametes versicolor and Poria placenta. Decay resistance was measured according to current standards and individual quinones content were quantified by high performance liquid chromatography.
High positive correlations…
F B Niamké, N Amusant, N Lemenager, G Chaix, M-F Thévenon, C Baudassé, S Kati-Coulibaly, A Amissa Adima, I Gossan Ado, C Jay-Allemand
Laboratory study of toxicity or tolerance of CCA preservative and heavy metal constituents copper, chromium and arsenic to Malaysian tropical fungi
2011 - IRG/WP 11-30579
…preservative and its constituent heavy metal tolerance and toxicity to 3 Malaysian isolates Phialophora fastigiata (soft rot fungus), Paecilomyces variotii (mould fungus) and an unidentified white rot Basidiomycete, was investigated by the modified ‘Strange-Smith’ agar-well-plate technique with 1.6% CCA…
A H H Wong, T Mark Venås, N Morsing, C C L Tan, P K F Chong
Remediation of Pentachlorophenol (PCP) in Biodiesel versus Diesel Carriers
2011 - IRG/WP 11-50279
…the soil was adjusted twice weekly if needed. In addition, toxicity and Toxicity Characteristic Leaching Potential (TCLP) were measured at day 0 and 180. The results showed that with an increase in the percentage of biodiesel, there was an increase in the degradation of diesel and diesel amended PCP. The highest…
S Keshani Langroodi, H Borazjani, D Nicholas, L Prewitt, S V Diehl, S Kitchens
Toward an assessment of copper bioavailability in treated wood
2010 - IRG/WP 10-20445
…wood effectively prevents decay by S. himantioides, but toxicity can be overcome above a threshold level of oxalate pretreatment. In agar microcosms, C-EA wood stimulates oxalate production by S. himantioides, but the concentration of induced oxalate remains below the threshold determined in the soil-block trial…
J S Schilling, J J Inda
Comparison of Bifenthrin Formulations for Their Skin and Eye Irritation Potential Using the Pollen Tube Growth Test
2010 - IRG/WP 10-30521
…bifenthrin formulations. Bifenthrin is regarded as a low toxicity insecticide, but some individuals can become highly skin sensitive to it. A condition called paresthesia results, which is a burning sensation in the skin, accompanied by rashes or redness that can last for up to 12 hours.To conduct a PTGT, a pollen…
S Millward, P Lobb
Preliminary Observations of the Photostabilization of Wood Surfaces with Cerium Oxide Nanoparticles
2010 - IRG/WP 10-40504
…wood. Some of these approaches are promising, but the toxicity of certain reactive transition metal compounds and the cost of wood modification and grafting have restricted their commercial applications. Hence, more cost-effective and environmentally friendly methods of protecting wood from photodegradation are…
Chunling Liu, A Ahniyaz, P Evans
Tests on the effectiveness of concentrated borate wood preservative
2009 - IRG/WP 09-30500
Tests were carried out to examine the toxicity of concentrated borate wood preservative to termites, fungi and mammals. The results showed that the preservative treated timber had high resistance to termite or decay and its acute oral toxicity belonged to low grade. The research shows that…
Su Haitao, Zhang Yanjun, Xie Guijun, Chen Lifang, He Xuexiang
Use of biological and low toxicity products against subterranean termites
2009 - IRG/WP 09-20410
…these reasons, this work studies the effectiveness of low toxicity products and products of a biological origin using various methodologies (physical-chemical barriers, active barriers, baits and treated wood) with the intention of evaluating the possible substitution of the most ecologically aggressive chemical…
M T Troya, M J Prieto, F Rubio