polychlorinated biphenyl

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Related to Aroclors: Pcbs

pol·y·chlo·rin·at·ed biphenyl

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

polychlorinated biphenyl

(Elements & Compounds) any of a group of compounds in which chlorine atoms replace the hydrogen atoms in biphenyl: used in industry in electrical insulators and in the manufacture of plastics; a toxic pollutant that can become concentrated in animal tissue. Abbreviation: PCB
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

polychlorinated biphenyl (PCB)

n bifenilo policlorado (BPC), policlorobifenilo
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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Aroclors are a mixture of hundreds of different congeners requiring identification by the analyst visually comparing the chromatography of the unknown with the chromatography of the standards.
Rodents treated with PCBs and commercial Aroclors exhibited a wide range of estrogenic effects including precocious puberty increases in the ovarian wet weight and water imbibition [22].
The profiles of sites 3, 4 and 5 are matched with Aroclor 1248 profile with some percent from heavier Aroclors like 1254 and 1260, while the profil es of sites 2 and 6 are similar to Aroclor 1254 profile with some percent of lighter Aroclor 1248 (Fig.
Most of the PCB mixtures manufactured for commercial use in the United States are known by the trade name Aroclor. Each specific Aroclor contained mixtures of some of the 209 congeners, with chlorine contents of the different Aroclors ranging from 21% to 68%.
A new reference material (RM), RM 8504, has been prepared for use as a diluent oil with Aroclors in transformer oil Standard Reference Materials (SRMs) 3075 to 3080 and SRM 3090 when developing and validating methods for the determination of polychlorinated biphenyls (PCBs) as Aroclors in transformer oil or similar matrices.
Non-, mono-, and di-ochlorobiphenyl concentrations and their toxic equivalents to 2,3,7,8-tetrachlorodibenzo[p]dioxin in Aroclors and digestive glands from American lobster (Homarus americanus) captured in Atlantic Canada.
These NJDEP surveys focused on bioaccumulation of isomers exclusively found in Aroclors 1248, 1254, and 1260.
In the United States, Monsanto Company has manufactured different mixtures of PCBs, the most widely used mixtures being Aroclors 1016, 1242, 1248, 1254, and 1260.
Because of the large number of environmental agents that humans are exposed to, there is a need to identify exposures that are most strongly associated with adverse health outcomes including individual exposures or groups of highly correlated and related exposures with a common source (e.g., Aroclors of PCB).
PCBs are commonly tested in addition to chlorinated pesticides, and are analyzed either as individual congeners, or as Aroclors (a trade name of several different PCB mixtures).
Key words: Aroclors: PCBs; Standard Reference Materials (SRMs); transformer oil; water.