نتایج جستجو برای: dioxins

تعداد نتایج: 3093  

Journal: :Environmental Health Perspectives 1995
M J DeVito L S Birnbaum W H Farland T A Gasiewicz

Humans are exposed to mixtures of polyhalogenated aromatic hydrocarbons, and the potential health effects of these exposures are uncertain. A subset of this class of compounds produce similar spectra of toxicity in experimental animals as does 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), and these chemicals have been classified as "dioxins." In this study, we compared the body burdens of dioxins...

Journal: :international journal of environmental research 2012
j. volmajer valh a. majcen le marechal b. križanec s. vajnhandl

the trend of sustainable use of available water resources encourages textile finishing enterprisesto implement efficient wastewater treatment technologies that enable water recycling, and not just it’sdischarging into the local wastewater treatment plants (wwtp). this paper presents the results obtainedfrom the h2o2/uv treatment of wastewater from slovene textile finishing company. laboratory s...

2007
Stanisław Szwaja

It is found that the chemical composition of exhaust gases emitted by IC reciprocating engines includes not only such harmful toxic substances as NOx, CH, PM and CO but also dioxins. Dioxins are characterized by incredibly destructive impact on human health. In the paper a short profile of dioxins, terms of dioxin formation and measures for their reduction are presented. Some experimental data ...

2015
Kenya YAMAMOTO Mitsuhiro KUDO Heihachiro ARITO Yasutaka OGAWA Tsutomu TAKATA

This cross-sectional study was intended to examine health effects of 678 male workers employed during an 8-yr period from 2000 to 2007 at 36 municipal and private waste incineration plants in Japan. Blood samples were obtained for analysis of concentrations of dioxins including coplanar polychlorinated biphenyls (coplanar PCBs) and evaluation of health effects. Health effects including diabetes...

Journal: :Chemosphere 2004
L A P Hoogenboom C A Kan T F H Bovee G van der Weg C Onstenk W A Traag

To investigate the kinetics of PCBs and dioxins, 3 week old broilers and 3 month old pigs were fed with a 10-fold diluted feed from the Belgium crisis for one week, followed by a period on clean feed. In the case of broilers this resulted in levels for dioxins, non-ortho and mono-ortho PCBs in fat of 102, 84 and 216 ng TEQ/kg, summarized to 402 ng TEQ/kg. Total levels decreased to 217 and 109 n...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2003
Kenji Toide Hiroshi Yamazaki Rikako Nagashima Keisuke Itoh Shunsuke Iwano Yoshiki Takahashi Shaw Watanabe Tetsuya Kamataki

The expression level of mRNAs for cytochrome P450 (CYP) 1A1 and 1B1 in freshly prepared white cells from 72 subjects exposed to dioxins at waste incinerators was investigated. The amounts of CYP1B1 mRNA ranged from 0.16 to 671 molecules/10(7) molecules of 18S rRNA, whereas the amounts of CYP1A1 mRNA were <6 molecules/10 ng total RNA, indicating that CYP1A1 was not induced to a detectable level ...

2013
Masakazu Ishii Kayoko Yamamoto

This study aims to develop a method for evaluating the environmental risk of harmful chemical substances released from specific sources, using two atmospheric dispersion models and GIS (Geographic Information Systems). In the first stage of evaluation, ADMER was used to conduct a wide-area evaluation which covered the entire area of the evaluation target region. In the second stage, METI-LIS wa...

2015
Dang Thuong Huyen Toshifumi Igarashi Takuya Shiraiwa

Bien Hoa airbase is a known dioxin-contaminated hotspot in Vietnam. The contamination occurred during the Vietnam War at the site where dioxins were transported, stored, sprayed, and spilled in the area. Dioxins, which are cancer inducing substances, may transfer from the soil to food crops and finally to human beings living around the area. Many surveys of dioxins in soil, water, organisms, an...

Journal: :Industrial health 2003
Masaki Kakeyama Chiharu Tohyama

This manuscript reviewed the neurotoxicity of dioxins and related compounds with an emphasis on maternal exposure. The brain during developmental period is thought to be highly sensitive to dioxin and its related compounds that affect a broad range of brain functions from the advanced brain function to the reproduction-controlling function, even at low doses. It is suggested that dioxins exhibi...

2002

Dioxin is the name given to a group of persistent, very toxic chemicals. The group includes chlorinated dibenzofurans, and dibenzo-dioxins, the most toxic of which is 2,3,7,8 -tetrachlorodibenzo-p-dioxin (TCDD). The group also includes related compounds which are structurally similar and are dioxin-like in their activity. The toxicity of these compounds is measured against TCDD using “toxic equ...

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