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Biodegradation of Phenanthrene-Nitrogen-Containing Analogues in Soil

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Biodegradation of Phenanthrene-Nitrogen-Containing Analogues in Soil. / Anyanwu, Ihuoma; Semple, Kirk Taylor.

In: Water, Air, and Soil Pollution, Vol. 226, 252, 08.2015.

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Anyanwu, Ihuoma ; Semple, Kirk Taylor. / Biodegradation of Phenanthrene-Nitrogen-Containing Analogues in Soil. In: Water, Air, and Soil Pollution. 2015 ; Vol. 226.

Bibtex

@article{0db88c1760fb4feb83af913ed3d32c58,
title = "Biodegradation of Phenanthrene-Nitrogen-Containing Analogues in Soil",
abstract = "Nitrogen- heterocyclic polycyclic aromatic hydrocarbons (N-PAHs) are ubiquitous constituents of contaminated sites in which their high water solubility and lower kow values imply greater mobility and impacts. Biodegradation is a major route of loss for organic contaminants in soil. In this study, microbial degradation was investigated in soil artificially contaminated with N-PAHs and monitored for over 200 days. The results showed that all the aromatic chemicals exhibited loss with increasing incubation time; however, only 0.05 ± 0.04 mg kg day−1 loss was observed for N-PAHs at 10 mg kg−1 amendments over the first 30 days incubation, with the exception of 4,7-phenanthroline which recorded 0.19 ± 0.03 mg kg day−1. The study showed that soil microflora have the potential to degrade N-PAHs since all of the aromatics recorded chemical losses under aerobic condition. However, degradation rates varied between chemicals and this was attributed to N-atom position and/or number of N-substituents. Further, relatively little or no biodegradation was observed in B[h]Q amended soils with increasing concentration; indicating that B[h]Q is more resistance to biodegradation in soil.",
keywords = "Biodegradation, PAHs, N-PAHs, Biotransformation, Soil",
author = "Ihuoma Anyanwu and Semple, {Kirk Taylor}",
year = "2015",
month = aug,
doi = "10.1007/s11270-015-2523-2",
language = "English",
volume = "226",
journal = "Water, Air, and Soil Pollution",
issn = "0049-6979",
publisher = "Springer Netherlands",

}

RIS

TY - JOUR

T1 - Biodegradation of Phenanthrene-Nitrogen-Containing Analogues in Soil

AU - Anyanwu, Ihuoma

AU - Semple, Kirk Taylor

PY - 2015/8

Y1 - 2015/8

N2 - Nitrogen- heterocyclic polycyclic aromatic hydrocarbons (N-PAHs) are ubiquitous constituents of contaminated sites in which their high water solubility and lower kow values imply greater mobility and impacts. Biodegradation is a major route of loss for organic contaminants in soil. In this study, microbial degradation was investigated in soil artificially contaminated with N-PAHs and monitored for over 200 days. The results showed that all the aromatic chemicals exhibited loss with increasing incubation time; however, only 0.05 ± 0.04 mg kg day−1 loss was observed for N-PAHs at 10 mg kg−1 amendments over the first 30 days incubation, with the exception of 4,7-phenanthroline which recorded 0.19 ± 0.03 mg kg day−1. The study showed that soil microflora have the potential to degrade N-PAHs since all of the aromatics recorded chemical losses under aerobic condition. However, degradation rates varied between chemicals and this was attributed to N-atom position and/or number of N-substituents. Further, relatively little or no biodegradation was observed in B[h]Q amended soils with increasing concentration; indicating that B[h]Q is more resistance to biodegradation in soil.

AB - Nitrogen- heterocyclic polycyclic aromatic hydrocarbons (N-PAHs) are ubiquitous constituents of contaminated sites in which their high water solubility and lower kow values imply greater mobility and impacts. Biodegradation is a major route of loss for organic contaminants in soil. In this study, microbial degradation was investigated in soil artificially contaminated with N-PAHs and monitored for over 200 days. The results showed that all the aromatic chemicals exhibited loss with increasing incubation time; however, only 0.05 ± 0.04 mg kg day−1 loss was observed for N-PAHs at 10 mg kg−1 amendments over the first 30 days incubation, with the exception of 4,7-phenanthroline which recorded 0.19 ± 0.03 mg kg day−1. The study showed that soil microflora have the potential to degrade N-PAHs since all of the aromatics recorded chemical losses under aerobic condition. However, degradation rates varied between chemicals and this was attributed to N-atom position and/or number of N-substituents. Further, relatively little or no biodegradation was observed in B[h]Q amended soils with increasing concentration; indicating that B[h]Q is more resistance to biodegradation in soil.

KW - Biodegradation

KW - PAHs

KW - N-PAHs

KW - Biotransformation

KW - Soil

U2 - 10.1007/s11270-015-2523-2

DO - 10.1007/s11270-015-2523-2

M3 - Journal article

VL - 226

JO - Water, Air, and Soil Pollution

JF - Water, Air, and Soil Pollution

SN - 0049-6979

M1 - 252

ER -