نتایج جستجو برای: pcb compounds

تعداد نتایج: 231091  

Journal: :international journal of advanced biological and biomedical research 0
mohammad mehdi esmaili m.sc. student, department of marine chemistry, marine science and technology university, khorramshahr, iran yadullah nikpour ghanavati assistance professor ,department of marine chemistry, marine science and technology university, khorramshahr, iran kamal ghanemi assistance professor ,department of marine chemistry, marine science and technology university, khorramshahr, iran

objective: the objective of this research is to examine pcb compounds in the persian gulf in the southern pars area. methods: in the research, 6 stations were sampled: asalouyeh port, kangan site, mehr petro kima petrochemical, 4th refinery in southern pasr, taheri port and aria sasol polymer. to sample water in the stations determined, one-liter sampling bottles of dark glass were used. in eac...

Journal: :تحقیقات نظام سلامت 0
بی‏بی فاطمه نبوی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران فهیمه تیموری کارشناسی ارشد، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمدمهدی امین استادیار، گروه بهداشت محیط، مرکز تحقیقات محیط زیست، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مریم حاتم زاده کارشناس، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مهناز نیک آئین دانشیار، گروه بهداشت محیط، مرکز تحقیقات محیط زیست، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: polychlorinated biphenyls (pcbs) are synthetic aromatic compounds containing two benzene rings with one to ten chlorine atoms. there are concerns about the health risks of these compounds in the environment due to their toxicity, persistence, and biological accumulation. pcbs wastes must be treated before being discharged to the environment because they will pollute the water, soil,...

Kamal Ghanemi Mohammad Mehdi Esmaili Yadullah Nikpour Ghanavati

Objective: The objective of this research is to examine PCB compounds in the Persian Gulf in the Southern Pars area. Methods: In the research, 6 stations were sampled: Asalouyeh Port, Kangan Site, Mehr Petro Kima Petrochemical, 4th Refinery in Southern Pasr, Taheri Port and Aria Sasol Polymer. To sample water in the stations determined, one-liter sampling bottles of dark glass were used. In eac...

Journal: :Environmental Health Perspectives 1995
S B Hamilton

Estrogenicity of Environmental PCBs The paper by Bergeron, Crews, and McLachlan, "PCBs as Environmental Estrogens: Turtle Sex Determination as a Biomarker of Environmental Contamination" (EHP 102:780-781) presents data on the estrogenic activity of 11 chlorinated biphenyls or diphenyl ethers, or hydroxylated derivatives thereof, selected so as to represent a variety of structural types. Some of...

Journal: :Environmental Health Perspectives 1995
Judith Bergeron David Crews John A. McLachlan

Estrogenicity of Environmental PCBs The paper by Bergeron, Crews, and McLachlan, "PCBs as Environmental Estrogens: Turtle Sex Determination as a Biomarker of Environmental Contamination" (EHP 102:780-781) presents data on the estrogenic activity of 11 chlorinated biphenyls or diphenyl ethers, or hydroxylated derivatives thereof, selected so as to represent a variety of structural types. Some of...

Kamal Ghanemi Mohammad Mehdi Esmaili Yadullah Nikpour Ghanavati

Objective: The objective of this research is to examine PCB compounds in the Persian Gulf in the Southern Pars area. Methods: In the research, 6 stations were sampled: Asalouyeh Port, Kangan Site, Mehr Petro Kima Petrochemical, 4th Refinery in Southern Pasr, Taheri Port and Aria Sasol Polymer. To sample water in the stations determined, one-liter sampling bottles of dark glass were used. In eac...

Journal: :Environmental toxicology and chemistry 2005
Johan Maervoet Veerle Beck Simon A Roelens Adrian Covaci Stefan Voorspoels Jan M C Geuns Veerle M Darras Paul Schepens

Fertilized chicken eggs were injected with high doses of individual polychlorinated biphenyl (PCB) congeners (0.5 microg of PCB 77, 9.8 microg of PCB 153, or 10.9 microg of PCB 180) before incubation to investigate the structure-specific uptake of these compounds by the embryo and their accumulation in brain and liver tissue. In accordance with earlier publications, a gradual uptake and accumul...

Journal: :دامپزشکی 0
مرتضی داودی دانش آموخته کارشناسی ارشد محیط زیست دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس نور عباس اسماعیلی ساری استاد گروه محیط زیست دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس نور نادر بهرامی فر استاد گروه محیط زیست دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس نور رسول زمانی احمد محمودی دانشجوی دکتری آلودگی محیط زیست دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس نور

organochlorine contaminants are highly stable and dangerous compounds, which are widespread in the environment. among these compounds, polychlorinated biphenyls (pcbs) are carcinogenic for humans and can also affect intellectual functions and the nervous, immune and reproductive systems. aquatic organism especially fishes are known to be main routes for e entrance of these compounds to the huma...

2017
Jennifer Przybyla E Andres Houseman Ellen Smit Molly L Kile

BACKGROUND Polychlorinated biphenyls (PCBs) and metals (lead and cadmium) are neurotoxic and affect neurobehavioral performance. Yet little is known about the association between exposure to multiple neurotoxic compounds and cognitive functioning in older adults. METHODS Using data from two consecutive cycles of the National Health and Nutrition and Examination Survey (1999-2002), path analys...

2003
Blanka Krauthacker Elsa Reiner

A gas-chromatographic method on capillary columns is described for measuring concentrations of total PCBs and of six PCB congeners, PCB-28, PCB-52, PCB-101, PCB-138, PCB-153 and PCB-180, in human blood serum. Recovery of compounds was evaluated, and the repeatability and reproducibility of the results tested on samples analysed on the same day and over a period of two years. The method was veri...

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