Biological activity associated with noncoplanar polychlorinated biphenyls after microbial dechlorination of aroclor 1242® and aroclor 1254®

2000 ◽  
Vol 19 (5) ◽  
pp. 1311-1316 ◽  
Author(s):  
Patricia E. Ganey ◽  
John F. Quensen ◽  
Mahmoud A. Mousa ◽  
Stephen A. Boyd ◽  
Margaret A. Wagner ◽  
...  
Keyword(s):  
Biological Activity ◽  
Polychlorinated Biphenyls ◽  
Aroclor 1254 ◽  
Aroclor 1242 ◽  
Microbial Dechlorination

scholarly journals Leaching Rate of Polychlorinated Biphenyls (PCBs) from Marine Paint Chips

2021 ◽  
Author(s):  
Allen D. Uhler ◽  
Jeffery H. Hardenstine ◽  
Deborah A. Edwards ◽  
Guilherme R. Lotufo
Keyword(s):  
Polychlorinated Biphenyls ◽  
Surface Waters ◽  
Leaching Rate ◽  
Short Term ◽  
Aroclor 1254 ◽  
Maintenance And Repair ◽  
Potential Source ◽  
Vessel Bottom ◽  
Dissolved Phase ◽  
Over Time

AbstractPolychlorinated biphenyls (PCBs) were added to certain marine vessel bottom paints as a plasticizer to improve the adhesion and durability of the paint. The most common PCB formulation used to amend such paints was Aroclor 1254. Fugitive Aroclor-containing paint chips generated from vessel maintenance and repair operations represent a potential source of PCB contamination to sediments. Limited published studies indicate that Aroclor-containing paint is largely inert and exhibits low PCB leaching into water; however, the rate and degree of leaching of PCBs from paint chips have not been directly studied. This laboratory-based study evaluated the rate and extent of leaching of PCBs from paint chips into freshwater. The results of this investigation demonstrate that the rate of PCB dissolution from paint chips decreased rapidly and exponentially over time. Based on this study, it is estimated that the rate of leaching of PCBs from paint chips would cease after approximately 3 years of exposure to water. When all leachable PCBs were exhausted, it is estimated that less than 1% of the mass of PCBs in the paint chips was amenable to dissolution. The results of this experiment suggest that Aroclor-containing paint chips found in sediments are likely short-term sources of dissolved-phase PCB to pore or surface waters and that the majority of the PCBs in paint chips remain in the paint matrix and unavailable for partitioning into water. Graphic Abstract

scholarly journals Potential risk reduction of Aroclor 1254 by microbial dechlorination in anaerobic Grasse River sediment microcosms

2017 ◽  
Vol 321 ◽  
pp. 879-887 ◽  
Author(s):  
Devrim Kaya ◽  
Ipek Imamoglu ◽  
F. Dilek Sanin ◽  
Rayford B. Payne ◽  
Kevin R. Sowers
Keyword(s):  
Risk Reduction ◽  
Potential Risk ◽  
River Sediment ◽  
Aroclor 1254 ◽  
Microbial Dechlorination

scholarly journals Construction of a Bioluminescent Reporter Strain To Detect Polychlorinated Biphenyls

1998 ◽  
Vol 64 (12) ◽  
pp. 5023-5026 ◽  
Author(s):  
A. C. Layton ◽  
M. Muccini ◽  
M. M. Ghosh ◽  
G. S. Sayler
Keyword(s):  
Polychlorinated Biphenyls ◽  
Nonionic Surfactant ◽  
Ralstonia Eutropha ◽  
Detection Limits ◽  
Reporter Strain ◽  
Aroclor 1242 ◽  
Minimum Detection Limits

ABSTRACT A bioluminescent reporter strain, Ralstonia eutrophaENV307(pUTK60), was constructed for the detection of polychlorinated biphenyls by inserting the biphenyl promoter upstream of the bioluminescence genes. In the presence of a nonionic surfactant, which enhances the solubility of chlorinated biphenyls, bioluminescence was induced three- to fourfold over background by biphenyl, monochlorinated biphenyls, and Aroclor 1242. The minimum detection limits for these compounds ranged from 0.15 mg/liter for 4-chlorobiphenyl to 1.5 mg/liter for Aroclor 1242.

Levels of Polychlorinated Biphenyls and Pesticides in Bluefish Before and After Cooking

1989 ◽  
Vol 72 (3) ◽  
pp. 501-503
Author(s):  
William J Trotter ◽  
Paul E Corneliussen ◽  
Ronald R Laski ◽  
Joseph J Vannelli
Keyword(s):  
Polychlorinated Biphenyls ◽  
Moisture Loss ◽  
Aroclor 1254 ◽  
Weight Losses ◽  
Before And After

Abstract Similar levels of polychlorinated biphenyls (PCBs), pesticides, and fat were found in 20 correlated uncooked and cooked (baked) bluefish fillets. Fillets averaged 2.5 ppm PCBs as Aroclor 1254 (whole basis) before cooking; after cooking, with the oil drippings and skin discarded, the average PCB level was 2.7 ppm. Although PCBs, lipophilic pesticides, and fat were lost along with oil drippings and skin that were discarded after cooking, the moisture loss in the fillets during cooking compensated for these weight losses almost completely. After the fillets were cooked and the oil drippings and skin were discarded, the PCB content of the fillets was 27% lower on the average.

Kinetics of Polychlorinated Biphenyls (Aroclor 1254) in Lactating Bovines and Their Distribution in Dairy Products

1977 ◽  
Vol 40 (5) ◽  
pp. 296-299 ◽  
Author(s):  
D. R. ARNOTT ◽  
D. H. BULLOCK ◽  
N. S. PLATONOW
Keyword(s):  
Polychlorinated Biphenyls ◽  
Tissue Distribution ◽  
Lipid Content ◽  
Dairy Products ◽  
High Fat ◽  
Aroclor 1254 ◽  
Lactating Cows ◽  
High Lipid ◽  
Dose Levels ◽  
Kinetics Of

Lactating cows were given orally, single or multiple graded doses of polychlorinated biphenyls (PCB) as Aroclor 1254 and the tissue distribution and excretion were measured. Persistence of PCB in milk was determined at all dose levels of PCB administered. A distinct predilection of PCB for tissues with high lipid content was noted. Similarly, PCB appeared in higher concentration in dairy products with high fat content.

Sign in / Sign up

Export Citation Format

Share Document