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Biphenyls in Medical News

Metametrix Announces New Toxic Effects Profiles to Help Combat Growing Concerns About Toxicity and Health

...a broad range of illnesses including allergies, asthma, cardiovascular disease, and cancer. AccuChem Polychlorinated biphenyls (PCBs) Profile - Measuring six common PCBs, this profile helps identify exposure to PCBs that are shown to cause health problems associated with neur...

Metametrix Announces Acquisition of Accu-Chem Laboratories

...m includes analyses of body fluids and tissues for recognized toxic chemicals including chlorinated pesticides, volatile solvents, and polychlorinated biphenyls (PCBs). "We are excited about the acquisition of Accu-Chem Laboratories," says Dr. J. Alexander Bralley, CEO of Metametrix Clinical Laboratory....

EPA should pursue cumulative risk assessment of phthalates and other chemicals

...tive risk assessment, the committee said. For instance, EPA could evaluate the risk of combined exposures to lead, methylmercury, and polychlorinated biphenyls because all contribute to cognitive deficits consistent with IQ reduction in children. In addition, further research should be conducted to allow g...

June 2008 highlights

...xt generation. They treated pregnant rats with a mixture of polychlorinated biphenyls (PCBs) and found that reproductive markers were disrupted not only in the f...Michael J. Woller, and Andrea C. Gore. Effects of Perinatal Polychlorinated biphenyls on Adult Female Rat Reproduction: Development, Reproductive Physiology, and...

American Chemical Society's Weekly Presspac -- Sept. 5, 2007

... 30-60 years Environmental Science & Technology Orcas or killer whales may continue to suffer the effects of contamination with polychlorinated biphenyls (PCBs) for the next 30 60 years, despite 1970s-era regulations that have reduced overall PCB concentrations in the environment, researchers in Canada...

How to Keep Away from Dust Allergy?

...d health effects in people exposed to large amounts of PCBs are skin conditions such as chloracne and rashes, it has been found. Polychlorinated biphenyls (PCBs) are a class of organic compounds and PCB mixtures have been used for a variety of industrial applications, including in the manufacture of adhe...

Bacterium Could Treat PCBs Without the Need for Dredging

... Researchers at Rensselaer Polytechnic Institute have discovered a tiny bacterium that could one day transform the way we remove polychlorinated biphenyls (PCBs) from our environment//. The organism could be the key to developing methods that help detoxify commercial PCB compounds on site — without the n...

Synthetic Chemicals May Trigger Breast Cancer

...f many plastics, which forms a part of more than 50% of food cans in British Supermarkets. Other chemicals in the line of fire include polychlorinated biphenyls or PCBs and pesticides such as DDT. Experts have emphasized that even seemingly insubstantial amounts of the chemicals could actually cause a g...

Environmental Pollutants Could Impact the Size of Sexual Organs

...ans in male and female polar bears, the health portal Medical News Today quoted the researchers as saying. OHCs include dioxins, polychlorinated biphenyls and some pesticides. Past studies have linked OHCs to various health effects in bears. The researchers did the study to close gaps in knowledge...

Childhood vaccines may lose their power of long-term protection with exposure to chemical pollutants.

...cacy of childhood vaccines may be diminished in the event of exposure to chemicals //popularly used in the industry- example pollutant polychlorinated biphenyls (PCBs) This became clear after Grandjean and colleagues investigated the response to vaccination in two companions from the Faroe Islands, know...
Biphenyls in Biological News

NIST issues human milk and blood serum SRMs for contaminant measurements

... NIST first released its first serum-based SRM (SRM 1589 Polychlorinated biphenyls in Human Serum) in 1985 to aid with the detection of polychlorinated biphenyls (PCBs), a toxic mixture of compounds used in transformer oils that was bann...

AGU journal highlights -- Oct. 16, 2008

...d deposition. To learn more about this "grasshopper effect," Jurado and Dachs focus on a class of persistent organic pollutants called polychlorinated biphenyls (PCB). Through studies of the grasshopper effect's seasonal variability and long-range atmospheric transport potentials, the authors find that the num...

Mussels to determine how much contamination is in the ports

...substances have also been studied, such as polyaromatic carbohydrates (PAH) from ships fuel, the phtalates used in making plastics or the polychloride biphenyls (PCBs) derived from oils. "These last are similar to dioxines and in the past were used in very powerful transformers. They are also prohibited, but a...

Environmental pollutant has sex-skewing effect

... Women exposed to high levels of PCBs (polychlorinated biphenyls a group of banned environmental pollutants) are less likely to give birth to male children. A study published today in BioMed Central's open access j...

Dioxin risk in soil and plant tissues after long-term biosolids application

...1 cumulative biosolids loading applied through annual applications from 1973 to 2002 and measured 29 congeners of dioxins, furans, and polychlorinated biphenyls (PCBs). Results from this study were published in July-August 2008 issue of the Journal of Environmental Quality . This research was also presented a...

UNH researchers test sediment-scrubbing technology in NH river

...gues added organoclay and activated charcoal ("like in your Brita filter," he says), which adhere to and treat toxic chemicals such as polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons, (PAHs), and petroleum products that routinely enter waterways through stormwater runoff. The project is funded ...

Persistent man-made chemical pollutants found in deep-sea octopods and squids

... said. Among the chemicals detected were tributyltin (TBT), polychlorinated biphenyls (PCBs), brominated diphenyl ethers (BDEs), and dichlorodiphenyl-trichloroet...ons (PAHs), found in all the samples, diphenyl ether (DPE), polychlorinated biphenyls (PCBs), and brominated diphenyl ethers (BDEs). The researchers also detecte...

A Great Lakes mystery: The case of the disappearing species

... mussels," he said. Seplveda is looking into another possible contributor to Diporeia's decline: water pollutants like pesticides, polychlorinated biphenyls (PCBs), flame retardants or others. Detailed in a study to be published in print and online next month in the journal Aquatic Toxicology, Seplveda...

Environmental fate of nanoparticles depends on properties of water carrying them

...m are discarded. Researchers want to know more about the environmental fate of nanoparticles to avoid creating problems like those of polychlorinated biphenyls (PCBs), in which the harmful effects of the compounds were discovered only after their use became widespread. It will be difficult to control the...

Chemicals used as fire retardants could be harmful, UC-Riverside researchers say

...shows that PBDEs disrupt mechanisms that are responsible for releasing hormones in the body. Moreover, their work has shown that like polychlorinated biphenyls (PCBs), whose manufacture in the U.S. was discontinued in 1977, PBDEs alter calcium signaling in the brain a critical mechanism for transmitting info...
Biphenyls in Biological Technology

Global Agricultural and Environmental Diagnostics Market to Reach $2.4 Billion by 2012, According to New Report by Global Industry Analysts

...n dairy products for detecting anti-biotic contaminants, while the recent focus has turned towards soil and water contaminants such as polychlorinated biphenyls (PCBs), dioxins, and on agricultural residues including fungicides and pesticides. These and other market data and trends are presented in "A...

Screening and classifying hazardous waste samples

... SPEX FLUOROLOG spectrofluorometer for detecting, classifying, and quantifying samples containing petroleum oils or chemicals like polychlorinated biphenyls (PCBs) and aromatics.

The project was conceived and carried out by US Army Corps of Engineers affiliates DeLyle Eastwood and Russell Lidberg. Th...

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