Biphenyls contamination

At a salvage yard in Anchorage, Alaska, the cost of treating 250 kg of lead- and polychlorinated biphenyl-contaminated soil was 22,000. At a underground storage tank site at the Boston Central Arterial, 10 kg of soil contaminated with total petroleum hydrocarbon was treated at a cost of 45 per ton (D10328W, pp. 8-16). 

Anderson HA, Wolff MS, Lilis R, et al. 1979. Symptoms and clinical abnormalities following ingestion of polybrominated-biphenyl-contaminated food products. Arm N Y Acad Sci 320 684-702. 

BarrM. 1980. Pediatric aspects of the Michigan polybrominated biphenyl contamination. Environ Res 21 255-274. 

Fries GF, Jacobs IW. 1980. Residual polybrominated biphenyl contamination Locations, amounts and significance on dairy farms. J Dairy Sci 63 114. 

Jackson TF, Halbert FL. 1974. A toxic syndrome associated with the feeding of polybrominated biphenyl-contaminated protein concentrate to dairy cattle. J Am Vet Med Assoc 165 437-439. 

Associated with the Feeding of Polybrominated Biphenyl-contaminated Protein Concentrate to Dairy Cattle," J. Amer. Veterinary Med. Assoc. 165(5). 437-442 (1974). 

Liang, Y., Wong, M.H., Shutes, R.B.E., Revitt, D.M., 1999. Ecological risk assessment of polychlorinated biphenyl contamination in the Mai Po Marshes Nature Reserve, Hong Kong. Water Res. 33, 1337-1346. 

Petreas MX, Wiesmuller T, Palmer FH, et al. 1992. Aquatic life as biomonitors of dioxin/fiiran and coplanar polychlorinated biphenyls contamination in the Sacramento-San Joaquin River Delta. Chemosphere 25(4) 621-631. 

Kennish MJ, Ruppel BE. 1996. Polychlorinated biphenyl contamination in selected estuarine and coastal marine finflsh and shellfish of New Jersey. Estuaries 19(2A) 288-295. 

Wickizer TM, Brilliant LB, Copeland R, et al. 1981. Polychlorinated biphenyl contamination of nursing mothers milk in Michigan. Am J Public Health 71 132-137. 

Connolly, J.P. 1991. Application of a food chain model to polychlorinated biphenyl contamination of the lobster and winter flounder food chains in New Bedford Harbor. Environ. Sci. Technol. 25 760-770. 

In Situ Vitrification of PCB (Polychlorinated Biphenyl)-Contaminated Soils Final Report... 

During the past 40 years large quantities of chlorinated organic compounds have been manufactured for use worldwide. Some of these compounds, such as the pesticides DDT, Lindane and pentachlorophenol, were purposely Introduced into the environment to control various noxious or harmful plant and animal pests (1 ). Others, such as polychlorinated biphenyls, contaminated the environment through use or as waste from manufacturing processes ( ). Some, such as 2,3,7,8-TCDD, were unknowingly Introduced as contaminants of other compounds or preparations (1 ). 

The organic solvent is removed by distillation under reduced pressure to give 4,4 -dimethyl-l,l -biphenyl contaminated with a small amount of bis(4-methylphenyl)thallium bromide. The crude product is dissolved in 30 ml. of benzene, and the solution is filtered through a short column of alumina (Note 7) using a total of 250 ml. of benzene as eluent. Distillation of the benzene under reduced pressure leaves 19-21 g. (80-83%) of 4,4 -dimethyl-l,l -biphenyl as a colorless solid, m.p. 118-120° (Note 8). 

Biphenyl dioxygenase B. xenovorans LB400 Family shuffling of bphA from polychlorinated biphenyl-contaminated soil DNA Multiple mutations (variant SlOO) Attack on carbon 5 and 6 of 2,2 -dichlorobiphenyl new ability to oxidize benzene, ethylbenzene, and toluene [22]... 

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