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The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil. / Ogbonnaya, O. U.; Adebisi, O. O.; Semple, Kirk T.
In: Environmental Science: Processes and Impacts, Vol. 16, No. 11, 11.2014, p. 2635-2643.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ogbonnaya, OU, Adebisi, OO & Semple, KT 2014, 'The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil', Environmental Science: Processes and Impacts, vol. 16, no. 11, pp. 2635-2643. https://doi.org/10.1039/c4em00396a

APA

Ogbonnaya, O. U., Adebisi, O. O., & Semple, K. T. (2014). The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil. Environmental Science: Processes and Impacts, 16(11), 2635-2643. https://doi.org/10.1039/c4em00396a

Vancouver

Ogbonnaya OU, Adebisi OO, Semple KT. The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil. Environmental Science: Processes and Impacts. 2014 Nov;16(11):2635-2643. doi: 10.1039/c4em00396a

Author

Ogbonnaya, O. U. ; Adebisi, O. O. ; Semple, Kirk T. / The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil. In: Environmental Science: Processes and Impacts. 2014 ; Vol. 16, No. 11. pp. 2635-2643.

Bibtex

@article{e845a9c16c0e416685e4ac52047244e7,
title = "The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil",
abstract = "Biochar is a carbon rich product from the incomplete combustion of biomass and it has been shown to reduce bioavailability of organic contaminants through adsorption. This study investigated the influence of 0%, 1%, 5% and 10% of two different particle sized wood biochars (≤2 mm and 3-7 mm) on the bioaccessibility of (14)C-phenanthrene (10 mg kg(-1)) in aged soil. The extent of (14)C-phenanthrene mineralisation by phenanthrene-degrading Pseudomonas sp. inoculum was monitored over a 14 day period in respirometric assays and compared to hydroxypropyl-β-cyclodextrin (HPCD) aqueous extraction. Notably, biochar amendments showed significant reduction in extents of mineralisation and HPCD extraction. Linear correlations between HPCD extractability and the total amount mineralised revealed good correlations, with 2 mm biochar showing a best fit (r(2) = 0.97, slope = 1.11, intercept = 1.72). Biochar reduced HPCD extractability and bioaccessibility of (14)C-phenanthrene to microorganisms in a similar manner. Biochar can aid risk reduction to phenanthrene exposure to biota in soil and HPCD can serve as a useful tool to assess the extent of exposure in biochar-amended soils.",
author = "Ogbonnaya, {O. U.} and Adebisi, {O. O.} and Semple, {Kirk T.}",
year = "2014",
month = nov,
doi = "10.1039/c4em00396a",
language = "English",
volume = "16",
pages = "2635--2643",
journal = "Environmental Science: Processes and Impacts",
issn = "2050-7887",
publisher = "Royal Society of Chemistry",
number = "11",

}

RIS

TY - JOUR

T1 - The impact of biochar on the bioaccessibility of (14)C-phenanthrene in aged soil

AU - Ogbonnaya, O. U.

AU - Adebisi, O. O.

AU - Semple, Kirk T.

PY - 2014/11

Y1 - 2014/11

N2 - Biochar is a carbon rich product from the incomplete combustion of biomass and it has been shown to reduce bioavailability of organic contaminants through adsorption. This study investigated the influence of 0%, 1%, 5% and 10% of two different particle sized wood biochars (≤2 mm and 3-7 mm) on the bioaccessibility of (14)C-phenanthrene (10 mg kg(-1)) in aged soil. The extent of (14)C-phenanthrene mineralisation by phenanthrene-degrading Pseudomonas sp. inoculum was monitored over a 14 day period in respirometric assays and compared to hydroxypropyl-β-cyclodextrin (HPCD) aqueous extraction. Notably, biochar amendments showed significant reduction in extents of mineralisation and HPCD extraction. Linear correlations between HPCD extractability and the total amount mineralised revealed good correlations, with 2 mm biochar showing a best fit (r(2) = 0.97, slope = 1.11, intercept = 1.72). Biochar reduced HPCD extractability and bioaccessibility of (14)C-phenanthrene to microorganisms in a similar manner. Biochar can aid risk reduction to phenanthrene exposure to biota in soil and HPCD can serve as a useful tool to assess the extent of exposure in biochar-amended soils.

AB - Biochar is a carbon rich product from the incomplete combustion of biomass and it has been shown to reduce bioavailability of organic contaminants through adsorption. This study investigated the influence of 0%, 1%, 5% and 10% of two different particle sized wood biochars (≤2 mm and 3-7 mm) on the bioaccessibility of (14)C-phenanthrene (10 mg kg(-1)) in aged soil. The extent of (14)C-phenanthrene mineralisation by phenanthrene-degrading Pseudomonas sp. inoculum was monitored over a 14 day period in respirometric assays and compared to hydroxypropyl-β-cyclodextrin (HPCD) aqueous extraction. Notably, biochar amendments showed significant reduction in extents of mineralisation and HPCD extraction. Linear correlations between HPCD extractability and the total amount mineralised revealed good correlations, with 2 mm biochar showing a best fit (r(2) = 0.97, slope = 1.11, intercept = 1.72). Biochar reduced HPCD extractability and bioaccessibility of (14)C-phenanthrene to microorganisms in a similar manner. Biochar can aid risk reduction to phenanthrene exposure to biota in soil and HPCD can serve as a useful tool to assess the extent of exposure in biochar-amended soils.

U2 - 10.1039/c4em00396a

DO - 10.1039/c4em00396a

M3 - Journal article

C2 - 25277257

VL - 16

SP - 2635

EP - 2643

JO - Environmental Science: Processes and Impacts

JF - Environmental Science: Processes and Impacts

SN - 2050-7887

IS - 11

ER -