نتایج جستجو برای: pcdd

تعداد نتایج: 702  

2014
Juan A. Conesa Silvia Egea Julia Moltó Nuria Ortuño Rafael Font

12 Combustion runs at 700 oC in a horizontal laboratory furnace were carried out on two 13 different electric wires (PVC and halogen-free wire). Tests were performed in the 14 presence and in the absence of the metal conductor of the wires. The analyses of the 15 polycyclic aromatic hydrocarbons (PAHs), chlorobenzenes (CBzs), chlorophenols 16 (CPhs), monoto octa-chlorodibenzo-p-dioxin and diben...

2014
Jan Banout Ondrej Urban Vojtech Musil Jirina Szakova Jiri Balik

Levels of polychlorinated dioxins/furans (PCDD/PCDF) in selected environmental samples (soils, sediments, fish, and farm animals) were analyzed from the area of Phong My commune (Thua Thien-Hue province, Vietnam). This area was affected by Agent Orange spraying during the Vietnam war (1968-1971). Whereas PCDD/PCDF content in soil and sediment samples is relatively low and ranges between 0.05 an...

2006
Jen-Ho Kao Kang-Shin Chen Guo-Ping Chang-Chien I-Cheng Chou

This work investigated the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) in stack-flue gases from six stationary emission sources in five types of incinerators: industrial waste incinerator (IWI), small-scale municipal solid waste incinerator (MSWI), medical waste incinerator (MWI), cement kilns (CK), and crematories (CR). These characteristics were further inv...

Journal: :European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry 2008
S Laisi H Kiviranta P-L Lukinmaa T Vartiainen S Alaluusua

AIM According to our earlier study, molar-incisor-hypomineralisation (MIH) was associated with the exposure of a child via mother's milk to polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) in a group of Finnish children born in 1987. Since the levels of PCDD/Fs and PCBs in mother's milk/placenta have remarkably decreased, it was important to find out if an association still exists. M...

Journal: :Environmental Health Perspectives 1998
P Messerer A Zober H Becher

Depending on process conditions, polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) may be generated as low-level byproducts of chlorophenol and chlorophenoxy herbicides manufacture. A stratified random sample of 20 active employees from a cohort of phenoxy herbicide workers was selected in 1995 for determining PCDD and PCDF congeners in blood lipids to assess t...

2015
Anteneh Assefa Shigeki Masunaga

High levels of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in edible fish in the Baltic Sea have raised health concerns in the Baltic region and the rest of Europe. Thus, there are urgent needs to characterize sources in order to formulate effective mitigation strategies. The aim of this thesis is to contribute to a better understanding of past and present sour...

2014
Pu Wang Qinghua Zhang Yonghui Lan Shiai Xu Renfu Gao Gang Li Haidong Zhang Hongtao Shang Daiwei Ren Chaofei Zhu Yingming Li Xiaomin Li Guibin Jiang

The sources of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) found in animal feed additive (feed grade cupric sulfate, CuSO4) were investigated and traced back to the formation of chlorinated organic compounds in the chlor-alkali industry. PCDD/Fs could be transported through the supply chain: hydrochloric acid (HCl) by-produced during formation of chlorinated organic compounds in c...

Journal: :Environment international 2006
Marta Schuhmacher José L Domingo

From 1975 to 2004, a municipal solid waste incinerator (MSWI) was operating in Montcada (Barcelona, Catalonia, Spain). Because of the potential health risks derived from emission of pollutants by the facility, especially polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs), a long-term monitoring program focused on measuring the environmental levels of PCDD/Fs near the facility, ...

Journal: :Journal of environmental sciences 2014
Zhenyu Tian Haifeng Li Huiting Xie Chen Tang Ying Han Mengjing Wang Wenbin Liu

Concentrations of Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in soil samples from Tibetan Plateau were determined. The average concentration of total 2,3,7,8-PCDD/Fs was (2.30±1.02) pg/g, and World Health Organization Toxicity Equivalency (WHO-TEQ) average concentration was (0.013±0.010) pgWHO-TEQ/g. The average concentration of ∑PCBs (7 i...

Journal: :Environmental science & technology 2009
Guorui Liu Minghui Zheng Wenbin Liu Chengzhi Wang Bing Zhang Lirong Gao Guijin Su Ke Xiao Pu Lv

The coking process is considered to be a potential source of unintentionally produced persistent organic pollutants (UP-POPs). However, intensive studies on the emission of UP-POPs from the coking industry are still very scarce. Emission of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), hexachlorobenzene (HxCBz), and pentachlorobenzen...

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