Results 161 to 170 of about 5,385 (222)

Polychlorinated Dibenzodioxins and Polychlorinated Dibenzofurans

Regulatory Toxicology and Pharmacology, 1999
Polychlorinated dibenzodioxins and polychlorinated dibenzofurans (dioxins) are contaminants with long biological half-lives. The most toxic dioxin, 2,3,7,8-tetrachlorodibenzodioxin (TCDD), has a half-life in humans of 9 years. A tolerable daily intake (TDI) of 10 pg/kg body wt/day has been recommended, which was derived from steady-state concentrations
openaire   +2 more sources

Polychlorinated dibenzodioxins and polychlorinated dibenzofurans in sewage sludges

Chemosphere, 1985
Abstract A municipal sewage sludge from Syracuse, New York and a largely domestic sludge from Sodus, New York were analyzed for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) using combined gas chromatography and high resolution mass spectrometry (GC/HRMS).
N.C.A. Weerasinghe   +2 more
openaire   +1 more source

Polychlorinated Dibenzodioxins and Dibenzofurans

1992
Polychlorinated dibenzodioxins (PCDD) and dibenzofurans (PCDF) — often refered to simply as “dioxins” — constitute a group of 210 closely related chemicals. They are mainly formed as byproducts in combustion or heating processes in the presence of substances containing chlorine as well as during the synthesis of chemical compounds structurally based on
J. Lebsanft, A. Basler
openaire   +1 more source

Polychlorinated dibenzofurans as a causal agent of fetal Yusho

Chemosphere, 2010
Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dioxin-like PCBs) are highly-toxic environmental pollutants that are still ubiquitous. About 40 years ago, a mass food poisoning, termed "Yusho", occurred in western Japan, and the causal agent of Yusho was thought to be PCDFs ...
Junya, Nagayama   +6 more
openaire   +2 more sources

Risk assessments of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls in food

open access: yesMolecular Nutrition and Food Research, 2006
The polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF), and dioxin-like polychlorinated biphenyls (dioxin-like PCB) are ubiquitous in food of animal origin and accumulate in fatty tissues of animals and humans.
Larsen, John Christian
exaly   +1 more source

Identification of chlorinated dibenzofurans in American polychlorinated biphenyls

Nature, 1975
MORTALITY of embryos has contributed to the reproductive failures of several bird species, including the sparrowhawks (Accipiter nisus) of southern Scotland1, the white-tailed eagles (Haliaeetus albicilla) of Schleswig Holstein2, and the herring gulls (Larus argentatus) of Lake Ontario3.
C W, Bowes   +4 more
openaire   +2 more sources

Transfer of polychlorinated dibenzofurans to the foetuses and offspring of mice

Food and Cosmetics Toxicology, 1980
Abstract A diet containing 0·6 ppm of a mixture of polychlorinated dibenzofurans (PCDFs) having 4, 5 or 6 chlorine atoms was fed to mice for 18 days after mating or for 14 days after delivery. Dams, foetuses and offspring were analysed for PCDFs by gas chromatography.
J, Nagayama   +3 more
openaire   +2 more sources

Role of Polychlorinated Dibenzofuran in Yusho (PCB Poisoning)

Archives of Environmental Health: An International Journal, 1981
In the blood of 15 patients with yusho or "polychlorinated biphenyl poisoning" that occurred in 1979 in Taiwan, was found polychlorinated dibenzofurans (14 of 15) and polychlorinated quaterphenyls (15 of 15), as well as polychlorinated biphenyls (15 of 15). The mean concentration ratio of these substances was approximately 1 : 160 : 500.
T, Kashimoto   +9 more
openaire   +2 more sources

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