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Latest Polychlorinated biphenyl Stories

2012-06-27 00:56:05

Prenatal exposure to the environmental contaminants polychlorinated biphenyls, or PCBs, causes long-term changes to the developing brain that have adverse effects on reproductive function later in life, a new study finds. Results will be presented Saturday at The Endocrine Society's 94th Annual Meeting in Houston. The study used rats, whose genes and molecules in the hypothalamus–the region of the brain important for reproductive function–are virtually identical to those in...

2012-04-25 11:55:12

New research from UC Davis and Washington State University shows that PCBs, or polychlorinated biphenyls, launch a cellular chain of events that leads to an overabundance of dendrites -- the filament-like projections that conduct electrochemical signals between neurons -- and disrupts normal patterns of neuronal connections in the brain. "Dendrite growth and branching during early development is a finely orchestrated process, and the presence of certain PCBs confuses the conductor of that...

2012-03-29 21:54:57

Study examined blood level changes in PCBs over a decade It's never been easy to be a polar bear. They may have to go months without eating. Their preferred food, seal, requires enormous luck and patience to catch. Add to that the melting of Arctic sea ice due to climate change, and the poisoning of the Arctic by toxic chemicals, and it's easy to see why polar bears worldwide are in trouble. Among all the bad news, however, comes one possible bright spot. In a study of PCBs in polar...

2011-12-28 12:00:00

New study evaluates use of in-situ reactive amendments in treatment of contaminated sediments. Toledo, OH (PRWEB) December 28, 2011 AquaBlok, Ltd., a leading manufacturer of composite particle materials for environmental remediation, has developed a new product for in-situ treatment and remediation of contaminated sediments. The new technology represents an improvement over costly remediation methods like dredging and conventional capping that can damage existing ecosystems. The company has...

2011-11-30 10:54:15

University of Iowa engineers have published their findings from a study of residential soils in the city of Cedar Rapids, making it one of only a few such U.S. urban soil studies ever conducted. The authors of the study, published in the November online edition of the journal Environmental Pollution, collected soils in the residential areas of downtown Cedar Rapids and analyzed them for industrial pollutants known as PCBs (polychlorinated biphyenyls) and chlordanes. Measured values for...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'