Results 161 to 170 of about 4,756 (214)

Induction of prophage lambda by chlorophenols

Environmental and Molecular Mutagenesis, 1990
AbstractChlorinated phenols, which are used primarily as wood preservatives and fungicides, are present in most air, water, and soil samples in industrialized areas as well as in the urine of most people. We have examined the ability of phenol and the 19 isomers of chlorophenol to induce DNA damage using the Microscreen prophage‐induction assay in ...
D M, DeMarini, H G, Brooks, D G, Parkes
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Lethal Body Residue of Chlorophenols and Mixtures of Chlorophenols in Benthic Organisms

Archives of Environmental Contamination and Toxicology, 2001
The lethal body residue (LBR) of a few chlorophenol congeners were measured in the oligochaete worm Lumbriculus variegatus, and the LBR of pentachlorophenol was measured also in a midge, Chironomus riparius larvae. LBR is defined as the concentration of the compound in the organism, on molar basis, to cause death, and the LBR(50) is defined as the ...
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Marine Bacteria Tolerant to Chlorophenols

Bulletin of Environmental Contamination and Toxicology, 1999
The cellulose industry produce chlorophenols as a result of the use of chlorine during pulp cellulose bleaching, and are discharged into natural waters by their effluents. The pollution of coastal sea waters by chlorophenols and several other organic compounds could modify the biota of this environment because the compounds have high toxicity, are ...
M, Martínez, A, Campos, A, García, C L, González   +3 more
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Wet peroxide oxidation of chlorophenols

Water Research, 2005
This study evaluates the application of Wet Peroxide Oxidation (WPO) for the treatment of solutions containing 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP). These compounds are of special interest due to their high toxicity and low biodegradability.
Verónica, García-Molina, Marta, López-Arias, Magdalena, Florczyk, Esther, Chamarro, Santiago, Esplugas   +4 more
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Chlorophenols in the Terrestrial Environment

1996
Chlorophenols are presently widespread in the environment. Even in the most remote natural environments, the presence of chlorophenols in both aquatic and terrestrial food chains has been recorded. These pervasive compounds have been used for a wide range of domestic, agricultural, and industrial purposes for more than 50 years.
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Urinary chlorophenols in sawmill workers

International Archives of Occupational and Environmental Health, 1987
The concentration of urinary chlorophenol was assayed for 230 sawmill workers. Information on the work tasks was obtained through questionnaires from occupational health centres. The workers were divided into three groups on the basis of the type of exposure: (1) those with skin absorption as the main route, (2) those with skin and respiratory route of
L, Lindroos, H, Koskinen, P, Mutanen, J, Järvisalo   +3 more
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Enzymatic Oxidative Transformation of Chlorophenol Mixtures

Journal of Environmental Quality, 2003
ABSTRACTChlorinated phenols are major industrial and agricultural xenobiotics that pollute soil and ground water. It has been shown that laccases catalyze the oxidative coupling of phenolic compounds. Therefore, the transformation of one or a mixture of several chlorinated phenols by a laccase from the fungus Trametes villosa was studied. Generally, if
BOLLAG J. M, CHU R, RAO, MARIA ANTONIETTA, GIANFREDA L.   +3 more
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Effect of vitamins on the aerobic degradation of 2-chlorophenol, 4-chlorophenol, and 4-chlorobiphenyl

Applied Microbiology and Biotechnology, 1996
The effect of vitamins on the aerobic degradation and dechlorination of 2-chlorophenol and 4-chlorophenol by Pseudomonas pickettii, strain LD1, and 4-chlorobiphenyl by Pseudomonas sp. strain CPE1 was determined. These microorganisms are capable of using the target compounds as the sole carbon and energy source, but do not need vitamins to metabolize ...
D, Kafkewitz, F, Fava, P M, Armenante
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Biosorption of chlorophenols: a review

International Journal of Environment and Pollution, 2008
A review of published literature on the biosorption of chlorophenols using various biomasses is presented. Factors such as pH, time, temperature, ionic strength, type of biomass and type of chlorophenols influence the chlorophenol uptake by biomass.
T. Mathialagan, T. Viraraghavan
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Destructive Oxidation of Chlorophenols

Australian Journal of Chemistry, 1994
The destructive oxidation of pentachlorophenol in alkaline aqueous solution has been attempted with tetraoxoruthenium species as catalysts and hypochlorite as the terminal oxidant. The product solution contained no pentachlorophenol. Only traces of chlorinated compounds which could be extracted with dichloromethane were present.
JK Beattie, JA Demartin, BJ Kennedy
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