polybrominated biphenyl


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Related to polybrominated biphenyl: Polybrominated diphenyl ether

polybrominated biphenyl

or

PBB,

any of a group of organic compounds used as a fire retardant. In 1973 several thousand pounds of PBB were accidentally mixed with livestock feed that was later distributed to farms in W central Michigan. Some 1.5 million chickens, 30,000 cattle, 5,900 swine, and 1,470 sheep that became contaminated with PBB before the mistake was discovered had to be destroyed. Later studies indicated that PBB had spread through the food chain; in one test of a sample of Michigan's residents, 97% of those tested had traces of PBB in fat tissue. Affected cattle suffered loss of appetite and weight loss (often leading to death), decreased milk production, and increased miscarriages. Laboratory studies have linked PBB with liver cancer in rats and with low birth weight, liver damage, and weakened resistance to disease in human beings.
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Growth in girls exposed in utero and postnatally to polybrominated biphenyls and polychlorinated biphenyls.
In this article we present the concentrations of 4 PBDE, 1 polybrominated biphenyl (PBB), and 41 polychlorinated biphenyl (PCB) congeners, the latter for comparative purposes.
Health Assessment of Occupational Exposure to Polybrominated Biphenyl (PBB) and Polybrominated Biphenyl Oxide (PBBO).
Commercial preparations contain few or no strictly coplanar PCB or polybrominated biphenyl congeners.
First, polybrominated biphenyl exposures have been associated with earlier menarche in girls, whereas experimental models show delayed puberty, a discordance that may be due to timing of exposure (Blanck et al.
Key words: PBB, PBDE, PCB, polybrominated biphenyl, polybrominated diphenyl ethers, polychlorinated biphenyl, retrospective time trend, serum.
Additionally, this nomenclature may be applicable to similar metabolites of other persistent aromatic organics, such as polybrominated diphenyl ethers (PBDEs) and polybrominated biphenyls (PBBs).