Reductive dehalogenation activity of indigenous microorganism in sediments of the Hackensack River, New Jersey

Sohn, Seo Yean; Häggblom, Max M.

doi:10.1016/j.envpol.2016.04.022

Cited by 16 publications

(3 citation statements)

References 57 publications

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“…Recently, there have been many studies involving the occurrence of several NBFRs in various environmental matrices, including air, , dusts, , sewage sludge, , and sediments, , as well as human serum. , It is worth noting that NBFRs have also been found in the Arctic, which indicates that these compounds can undergo a long-range atmospheric transport (LRAT), just as the restricted and banned traditional BFRs . Bioaccumulation potential and adverse effects of NBFRs have been documented, , which is worthy of attention because they may have the same properties as the restricted and banned BFRs, particularly considering their physical and chemical similarities to traditional BFRs.…”

Section: Introductionmentioning

confidence: 99%

A Review of Environmental Occurrence, Fate, and Toxicity of Novel Brominated Flame Retardants

Xiong

Yan

Zhu

et al. 2019

Environ. Sci. Technol.

254

104

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Use of legacy brominated flame retardants (BFRs), including polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD), has been reduced due to adverse effects of these chemicals. Several novel brominated flame retardants (NBFRs), such decabromodiphenyl ethane (DBDPE) and bis(2,4,6-tribromophenoxy) ethane (BTBPE), have been developed as replacements for PBDEs. NBFRs are used in various industrial and consumer products, which leads to their ubiquitous occurrence in the environment. This article reviews occurrence and fate of a select group of NBFRs in the environment, as well as their human exposure and toxicity. Occurrence of NBFRs in both abiotic, including air, water, dust, soil, sediment and sludge, and biotic matrices, including bird, fish, and human serum, have been documented. Evidence regarding the degradation, including photodegradation, thermal degradation and biodegradation, and bioaccumulation and biomagnification of NBFRs is summarized. The toxicity data of NBFRs show that several NBFRs can cause adverse effects through different modes of action, such as hormone disruption, endocrine disruption, genotoxicity, and behavioral modification. The primary ecological risk assessment shows that most NBFRs exert no significant environmental risk, but it is worth noting that the result should be carefully used owing to the limited toxicity data.

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Section: Introductionmentioning

confidence: 99%

A Review of Environmental Occurrence, Fate, and Toxicity of Novel Brominated Flame Retardants

Xiong

Yan

Zhu

et al. 2019

Environ. Sci. Technol.

254

104

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“…Many studies addressed anthropogenic contamination of alluvial sediments, including in the cases of Hackensack river [10], Paglia and Tiber rivers [11], Drava river [2], Vardar river [3], Idrijca river [12], Meža river [13] Elbe river [14] and estuarine sediments, as in the case of the Gulf of Cambay [15]. Increased levels of Cu, Zn, Cd, Ni, Cr, Hg, As and many other potentially toxic elements are commonly associated with anthropogenic impacts.…”

Section: Introductionmentioning

confidence: 99%

Elemental Associations in Stream and Alluvial Sediments of the Savinja and Voglajna Rivers (Slovenia, EU) as a Result of Natural Processes and Anthropogenic Activities

Žibret

2022

Minerals

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Stream and alluvial sediments of the Savinja and Voglajna rivers were sampled, and sediment fractions <0.063 and 0.063–0.125 mm were analyzed on the content of 60 of the main and trace elements. The objective was to determine elemental associations and identify possible sources of these associations. Differences of Al/Ti oxides ratio (9.7–26) can be attributed to the variations in the source rocks, while the K/Al oxides ratio indicates erosional or depositional river regime and variation in source rocks. One anthropogenic and three natural associations of elements were identified. The anthropogenic association (Ag, In, Sb, Cu, As, Zn, Pb, Cd, Bi, Mo and Sn) is linked to historic Zn smelting in the Celje area, and the subsequent erosion of the material from inadequately managed pyrometallurgical waste deposit. The second association (Li, Sc, Al, V, Cs and Ga) is linked to clay minerals, the third one (Mg, Ca and Te) to carbonate rocks, and the fourth one (Hf, Zr) to the heavy mineral fraction.

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“…Strictly anaerobic bacteria exist that have evolved to use organohalides as terminal electron acceptors, dioxins can be biotransformed to less-chlorinated byproducts through the anaerobic reductive dechlorinating mechanisms Lee et al, 2015;Liu et al, 2014). There are two different processes of reductive dehalogenation (hydrogenolysis and dichloroelimination), and reductive dechlorination can be carried out under cometabolic conditions, which proceeds with enzymes that catalyze other reactions (Lee et al, 2015;Sohn and H¨aggblom, 2016).…”

Section: Introductionmentioning

confidence: 99%

Aerobic Biodegradation of OCDD by P. Mendocina NSYSU: Effectiveness and Gene Inducement Studies

Jing

Lin

Liu

et al. 2017

Water Environment Research

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The goals of this study were to assess the effectiveness of (1) enhancing octachlorinated dibenzo-p-dioxin (OCDD) biodegradation under aerobic conditions by Pseudomonas mendocina NSYSU (P. Mendocina NSYSU) with the addition of lecithin, and (2) inducing OCDD ring-cleavage genes by pentachlorophenol (PCP) and OCDD addition. P. Mendocina NSYSU could biodegrade OCDD via aerobic cometabolism and lecithin was used as a primary substrate. Approximately 74 and 67% of OCDD biodegradation was observed after 60 days of incubation with lecithin and glucose supplement, respectively. Lecithin was also used as the solubilization additive resulting in OCDD solubilization and enhanced bioavailability of OCDD to P. Mendocina NSYSU. Two intradiol and extradiol ring-cleavage dioxygenase genes (Pmen_0474 and Pmen_2526) were identified from gene analyses. Gene concentration was significantly enhanced after the inducement by PCP and OCDD. Higher gene inducement efficiency was obtained using PCP as the inducer, and Pmen_2526 played a more important role in OCDD biodegradation.

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Reductive dehalogenation activity of indigenous microorganism in sediments of the Hackensack River, New Jersey

Cited by 16 publications

References 57 publications

A Review of Environmental Occurrence, Fate, and Toxicity of Novel Brominated Flame Retardants

A Review of Environmental Occurrence, Fate, and Toxicity of Novel Brominated Flame Retardants

Elemental Associations in Stream and Alluvial Sediments of the Savinja and Voglajna Rivers (Slovenia, EU) as a Result of Natural Processes and Anthropogenic Activities

Aerobic Biodegradation of OCDD by P. Mendocina NSYSU: Effectiveness and Gene Inducement Studies

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