Home > Research > Publications & Outputs > Impact of black carbon in the extraction and mi...
View graph of relations

Impact of black carbon in the extraction and mineralization of phenanthrene in soil.

Research output: Contribution to journalJournal article

Published

Standard

Impact of black carbon in the extraction and mineralization of phenanthrene in soil. / Rhodes, Angela; Carlin, Alisdair; Semple, Kirk T.

In: Environmental Science and Technology, Vol. 42, No. 3, 02.2008, p. 740-745.

Research output: Contribution to journalJournal article

Harvard

Rhodes, A, Carlin, A & Semple, KT 2008, 'Impact of black carbon in the extraction and mineralization of phenanthrene in soil.', Environmental Science and Technology, vol. 42, no. 3, pp. 740-745. https://doi.org/10.1021/es071451n

APA

Vancouver

Author

Rhodes, Angela ; Carlin, Alisdair ; Semple, Kirk T. / Impact of black carbon in the extraction and mineralization of phenanthrene in soil. In: Environmental Science and Technology. 2008 ; Vol. 42, No. 3. pp. 740-745.

Bibtex

@article{d636ec5b63ba422a8d865a78c13f7a93,
title = "Impact of black carbon in the extraction and mineralization of phenanthrene in soil.",
abstract = "During the past century, increased biomass burning and fossil fuel consumption have drastically increased the input of black carbon (BC) into the environment, and that has been shown to influence the behavior of organic contaminants in soil. A study was conducted to investigate the effects of BC on the relationship between aqueous hydroxypropyl-beta-cyclodextrin (HPCD) extraction and microbial mineralization (bioaccessibility) of C-14-phenanthrene (10 mg kg(-1)) in four soils amended with 0, 0.1, 0.5, 1, 2.5, and 5% (% dry wt soil) activated charcoal, a type of BC. Mineralisation was monitored over 20 d incubation, within respirometric assays, using an inoculum containing a phenanthrene-degrading pseudomonad and compared to HPCD extraction (24 h) using 50 mM aqueous solution; analyses were conducted after 1, 25, 50, and 100 d soil-phenanthrene contact time. Statistical analyses revealed that for each soil the addition of BC led to significant (P < 0.001) reductions in both HPCD extractability and microbial mineralization. Linear correlations for BC concentrations of 0% (r(2) = 0.95; slope = 0.89) and 0.1% (r(2) = 0.67; slope = 0.95) revealed a highly significant (P < 0.01) relationship between HPCD extractability and total mineralization (20 d), indicating a direct prediction of phenanthrene bioaccessibility by HPCD. However, in soils amended with 0.5, 1, 2.5, and 5% BC exhibited r(2) values ranging 0.51-0.13 and slopes of 2.19-12.73. This study has shown that BC strongly sorbs phenanthrene causing reductions in extractability and,to a lesser extent, bioaccessibility to degrading microorganisms.",
author = "Angela Rhodes and Alisdair Carlin and Semple, {Kirk T.}",
year = "2008",
month = feb
doi = "10.1021/es071451n",
language = "English",
volume = "42",
pages = "740--745",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Impact of black carbon in the extraction and mineralization of phenanthrene in soil.

AU - Rhodes, Angela

AU - Carlin, Alisdair

AU - Semple, Kirk T.

PY - 2008/2

Y1 - 2008/2

N2 - During the past century, increased biomass burning and fossil fuel consumption have drastically increased the input of black carbon (BC) into the environment, and that has been shown to influence the behavior of organic contaminants in soil. A study was conducted to investigate the effects of BC on the relationship between aqueous hydroxypropyl-beta-cyclodextrin (HPCD) extraction and microbial mineralization (bioaccessibility) of C-14-phenanthrene (10 mg kg(-1)) in four soils amended with 0, 0.1, 0.5, 1, 2.5, and 5% (% dry wt soil) activated charcoal, a type of BC. Mineralisation was monitored over 20 d incubation, within respirometric assays, using an inoculum containing a phenanthrene-degrading pseudomonad and compared to HPCD extraction (24 h) using 50 mM aqueous solution; analyses were conducted after 1, 25, 50, and 100 d soil-phenanthrene contact time. Statistical analyses revealed that for each soil the addition of BC led to significant (P < 0.001) reductions in both HPCD extractability and microbial mineralization. Linear correlations for BC concentrations of 0% (r(2) = 0.95; slope = 0.89) and 0.1% (r(2) = 0.67; slope = 0.95) revealed a highly significant (P < 0.01) relationship between HPCD extractability and total mineralization (20 d), indicating a direct prediction of phenanthrene bioaccessibility by HPCD. However, in soils amended with 0.5, 1, 2.5, and 5% BC exhibited r(2) values ranging 0.51-0.13 and slopes of 2.19-12.73. This study has shown that BC strongly sorbs phenanthrene causing reductions in extractability and,to a lesser extent, bioaccessibility to degrading microorganisms.

AB - During the past century, increased biomass burning and fossil fuel consumption have drastically increased the input of black carbon (BC) into the environment, and that has been shown to influence the behavior of organic contaminants in soil. A study was conducted to investigate the effects of BC on the relationship between aqueous hydroxypropyl-beta-cyclodextrin (HPCD) extraction and microbial mineralization (bioaccessibility) of C-14-phenanthrene (10 mg kg(-1)) in four soils amended with 0, 0.1, 0.5, 1, 2.5, and 5% (% dry wt soil) activated charcoal, a type of BC. Mineralisation was monitored over 20 d incubation, within respirometric assays, using an inoculum containing a phenanthrene-degrading pseudomonad and compared to HPCD extraction (24 h) using 50 mM aqueous solution; analyses were conducted after 1, 25, 50, and 100 d soil-phenanthrene contact time. Statistical analyses revealed that for each soil the addition of BC led to significant (P < 0.001) reductions in both HPCD extractability and microbial mineralization. Linear correlations for BC concentrations of 0% (r(2) = 0.95; slope = 0.89) and 0.1% (r(2) = 0.67; slope = 0.95) revealed a highly significant (P < 0.01) relationship between HPCD extractability and total mineralization (20 d), indicating a direct prediction of phenanthrene bioaccessibility by HPCD. However, in soils amended with 0.5, 1, 2.5, and 5% BC exhibited r(2) values ranging 0.51-0.13 and slopes of 2.19-12.73. This study has shown that BC strongly sorbs phenanthrene causing reductions in extractability and,to a lesser extent, bioaccessibility to degrading microorganisms.

UR - http://www.scopus.com/inward/record.url?scp=38949093811&partnerID=8YFLogxK

U2 - 10.1021/es071451n

DO - 10.1021/es071451n

M3 - Journal article

VL - 42

SP - 740

EP - 745

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 3

ER -