Results 151 to 160 of about 2,301 (175)
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Hazardous Waste and Hazardous Materials, 1994
Polychlorinated dibenzodioxins, PCDDs, and polychlorinated dibenzofurans, PCDFs, have the potential to accumulate in sediments given their low water solubilities and correspondingly high sorbent potential to solids. There are numerous sources of these compounds which include not only waste products from current or past manufacturing of specific ...
A.N. CLARKE +3 more
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Polychlorinated dibenzodioxins, PCDDs, and polychlorinated dibenzofurans, PCDFs, have the potential to accumulate in sediments given their low water solubilities and correspondingly high sorbent potential to solids. There are numerous sources of these compounds which include not only waste products from current or past manufacturing of specific ...
A.N. CLARKE +3 more
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Chemosphere, 1991
Abstract Over 300 samples of materials of construction were analyzed for congener specific PCDFs/PCDDs. Comparisons for QA/QC and disposal purposes used USEPA (1989) toxicity equivalency (TE) factors. TEs followed a log normal distribution.
Ann N. Clarke +4 more
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Abstract Over 300 samples of materials of construction were analyzed for congener specific PCDFs/PCDDs. Comparisons for QA/QC and disposal purposes used USEPA (1989) toxicity equivalency (TE) factors. TEs followed a log normal distribution.
Ann N. Clarke +4 more
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Chemosphere, 2002
Eighteen teachers from a highly contaminated school and 11 teachers from a control school participated in this study. Total polychlorinated biphenyl (PCB) indoor air concentration (six indicator congeners x 5) was beyond 12000 ng/m3 in some rooms of the contaminated school. PCB 28 and PCB 52 were the prevailing congeners.
M, Schwenk +3 more
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Eighteen teachers from a highly contaminated school and 11 teachers from a control school participated in this study. Total polychlorinated biphenyl (PCB) indoor air concentration (six indicator congeners x 5) was beyond 12000 ng/m3 in some rooms of the contaminated school. PCB 28 and PCB 52 were the prevailing congeners.
M, Schwenk +3 more
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Bulletin of Environmental Contamination and Toxicology, 1987
Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) have been detected in many species and environments their bioresistance and toxicity being of great concern. PCDDs and PCDFs, or the predioxins and -furans, are formed from chlorophenols (CPs) by burning and pyrolysis by arcing and by photolysis. PCDDs and PCDFs have also been found in
L G, Oberg, S E, Swanson
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Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) have been detected in many species and environments their bioresistance and toxicity being of great concern. PCDDs and PCDFs, or the predioxins and -furans, are formed from chlorophenols (CPs) by burning and pyrolysis by arcing and by photolysis. PCDDs and PCDFs have also been found in
L G, Oberg, S E, Swanson
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Chemosphere, 1993
Abstract Topsoil and sediment samples from the Italian general environment were assayed for PCBs, PCDDs, and PCDFs. PCB levels appear to range between 6.2 × 102 and 1.6 × 104 ng/kg in open areas and between 1.2 × 102 and 6.8 × 102 ng/kg in cave samples.
A. di Domenico +11 more
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Abstract Topsoil and sediment samples from the Italian general environment were assayed for PCBs, PCDDs, and PCDFs. PCB levels appear to range between 6.2 × 102 and 1.6 × 104 ng/kg in open areas and between 1.2 × 102 and 6.8 × 102 ng/kg in cave samples.
A. di Domenico +11 more
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1998
Atmospheric concentrations of tetra - to octachlorinated dibenzodioxins (PCDDs) and dibenzofurans (PCDFs) were determined in five air samples collected at two sites in Brisbane, Australia between January and July 1995. Levels of the sum of all tetra - to octachlorinated PCDDs and PCDFs ([sigma] PCDD/Fs) detectable ranged from 600 fg m-3 to 1200 fg m-3.
Müller, J. F. +3 more
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Atmospheric concentrations of tetra - to octachlorinated dibenzodioxins (PCDDs) and dibenzofurans (PCDFs) were determined in five air samples collected at two sites in Brisbane, Australia between January and July 1995. Levels of the sum of all tetra - to octachlorinated PCDDs and PCDFs ([sigma] PCDD/Fs) detectable ranged from 600 fg m-3 to 1200 fg m-3.
Müller, J. F. +3 more
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ChemInform Abstract: Detoxication of Polychlorinated Biphenyls and Dibenzodioxins
ChemInform, 1988openaire +1 more source