Polychlorinated biphenyl transport in the Hudson River, New York

1981 ◽  
Keyword(s):  
New York ◽  
Polychlorinated Biphenyl ◽  
Hudson River

Indoor Air Polychlorinated Biphenyl Concentrations in Three Communities Along the Upper Hudson River, New York

2010 ◽  
Vol 61 (3) ◽  
pp. 530-538 ◽  
Author(s):  
Lloyd R. Wilson ◽  
Patrick M. Palmer ◽  
Erin E. Belanger ◽  
Michael R. Cayo ◽  
Lorie A. Durocher ◽  
...  
Keyword(s):  
New York ◽  
Indoor Air ◽  
Polychlorinated Biphenyl ◽  
Hudson River

scholarly journals “Dehalococcoides” sp. Strain CBDB1 Extensively Dechlorinates the Commercial Polychlorinated Biphenyl Mixture Aroclor 1260

2009 ◽  
Vol 75 (13) ◽  
pp. 4516-4524 ◽  
Author(s):  
Lorenz Adrian ◽  
Vlasta Dudková ◽  
Katařina Demnerová ◽  
Donna L. Bedard
Keyword(s):  
New York ◽  
Polychlorinated Biphenyl ◽  
Hudson River ◽  
Pcb Congeners ◽  
Aroclor 1248 ◽  
Wide Range ◽  
High Resolution Gas Chromatography ◽  
Pcb Dechlorination ◽  
First Time

ABSTRACT “Dehalococcoides” sp. strain CBDB1 in pure culture dechlorinates a wide range of PCB congeners with three to eight chlorine substituents. Congener-specific high-resolution gas chromatography revealed that CBDB1 extensively dechlorinated both Aroclor 1248 and Aroclor 1260 after four months of incubation. For example, 16 congeners comprising 67.3% of the total PCBs in Aroclor 1260 were decreased by 64%. We confirmed the dechlorination of 43 different PCB congeners. The most prominent dechlorination products were 2,3′,5-chlorinated biphenyl (25-3-CB) and 24-3-CB from Aroclor 1248 and 235-25-CB, 25-25-CB, 24-25-CB, and 235-236-CB from Aroclor 1260. Strain CBDB1 removed flanked para chlorines from 3,4-, 2,4,5-, and 3,4,5-chlorophenyl rings, primarily para chlorines from 2,3,4,5-chlorophenyl rings, primarily meta chlorines from 2,3,4- and 2,3,4,6-chlorophenyl rings, and either meta or para chlorines from 2,3,4,5,6-chlorophenyl rings. The site of attack on the 2,3,4-chorophenyl ring was heavily influenced by the chlorine configuration on the opposite ring. This dechlorination pattern matches PCB Process H dechlorination, which was previously observed in situ both in the Acushnet Estuary (New Bedford, MA) and in parts of the Hudson River (New York). Accordingly, we propose that Dehalococcoides bacteria similar to CBDB1 are potential agents of Process H PCB dechlorination in the environment. This is the first time that a complex naturally occurring PCB dechlorination pattern has been reproduced in the laboratory using a single bacterial strain.

Effect of habitat use on PCB body burden in Hudson River striped bass (Morone saxatilis)

1999 ◽  
Vol 56 (S1) ◽  
pp. 86-93 ◽  
Author(s):  
Erik R Zlokovitz ◽  
David H Secor
Keyword(s):  
New York ◽  
Habitat Use ◽  
Striped Bass ◽  
Polychlorinated Biphenyl ◽  
Body Burden ◽  
Morone Saxatilis ◽  
Hudson River ◽  
Local Source ◽  
Marine Habitats ◽  
Electron Microanalysis

The Hudson River commercial striped bass (Morone saxatilis) fishery has been closed since 1976 due to high polychlorinated biphenyl (PCB) contamination. Accurate forecasting of PCB levels in striped bass has been confounded by high variance in contamination among individuals. We investigated the relationship between habitat use and PCB contamination in Hudson River and Long Island Sound striped bass using electron microanalysis of otolith strontium to generate time series of individual salinity habitation. Males with highly contaminated levels (mean PCB = 8.3 ppm) showed freshwater resident behavior, rarely experiencing salinities >5 ppt. Several individuals showed large habitat shifts. Shifts from brackish or marine habitats to freshwater habitats were often associated with high PCB levels. A third pattern was apparent in large females, where polyhaline/euhaline salinity habitation was associated with lower PCB levels. Total PCB body burden was inversely correlated with mean salinity encountered during the most recent growth season prior to capture. Fish with recent exposure to polyhaline salinities showed high variability in PCB body burdens (0.4-9.0 ppm), suggesting a local source of PCB contamination in the New York Harbor region.

Die Konstruktion von Natur – Central Park neu besichtigt | The Construction of Nature – Central Park Revisited

2005 ◽  
Vol 156 (8) ◽  
pp. 288-296
Author(s):  
Vittorio Magnago Lampugnani
Keyword(s):  
New York ◽  
Hudson River ◽  
The United States ◽  
Central Park ◽  
Housing Developments ◽  
Hudson River School ◽  
The North ◽  
Man And Nature ◽  
The 19Th Century ◽  
The Relationship

In the first half of the 19th century scientific philosophers in the United States, such as Emerson and Thoreau, began to pursue the relationship between man and nature. Painters from the Hudson River School discovered the rural spaces to the north of New York and began to celebrate the American landscape in their paintings. In many places at this time garden societies were founded, which generated widespread support for the creation of park enclosures While the first such were cemeteries with the character of parks, housing developments on the peripheries of towns were later set in generous park landscapes. However, the centres of the growing American cities also need green spaces and the so-called «park movement»reached a first high point with New York's Central Park. It was not only an experimental field for modern urban elements, but even today is a force of social cohesion.

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