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Citation
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HERO ID
5068522
Reference Type
Journal Article
Title
Assessment of benzene, toluene, ethyl-benzene, and xylene (BTEX) toxicity in soil using sulfur-oxidizing bacterial (SOB) bioassay
Author(s)
Ahmed, N; Ok, YS; Jeon, BH; Kim, JR; Chae, KJ; Oh, SE
Year
2019
Is Peer Reviewed?
Yes
Journal
Chemosphere
ISSN:
0045-6535
EISSN:
1879-1298
Volume
220
Page Numbers
651-657
Language
English
PMID
30599323
DOI
10.1016/j.chemosphere.2018.12.102
Web of Science Id
WOS:000458591200072
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059581628&doi=10.1016%2fj.chemosphere.2018.12.102&partnerID=40&md5=0fd834fe6dd10f691b5502ab9c3cd954
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Abstract
The assessment of benzene, toluene, ethyl-benzene, and xylene (BTEX)-contaminated soil toxicity was performed using a sulfur-oxidizing bacteria (SOB) assay. The experiments were set up using an individual pollutant in a 25-mL bottle sealed with a rubber stopper and aluminum cap since BTEX are volatile. A large headspace volume (14 mL) was kept in the reactors to provide enough oxygen for the SOB. Soil samples were spiked with BTEX compounds in the concentration range of 1-1000 mg/kg. In reactors without BTEX compounds, approximately 85% of the theoretically required oxygen was consumed. Whereas, the reactors with benzene consumed in the range of 82-64% (5-100 mg/kg), those with toluene consumed 76-53% (1-50 mg/kg), those with ethyl-benzene consumed 44-71% (5-100 mg/kg), and those with xylene consumed 64-71% (1-10 mg/kg) of the theoretically required oxygen. The effective concentrations responsible for 50% growth inhibition (EC50) for benzene, toluene, ethyl-benzene, and xylene detection were 130.2, 1.2, 15.2, and 0.7 mg/kg, respectively. These results suggest that this SOB-based bioassay can detect BTEX pollutants in soils.
Keywords
BTEX toxicity; Sulfur-oxidizing bacterial bioassay; Soil toxicity; Benzene; Toluene; Ethyl-benzene; Xylene
Tags
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Ethylbenzene
LitSearch Update 2019
PubMed
WOS
New Litsearch 4/2019
PubMed
Toxline
WOS
Litsearch Update April 2020
WOS
Litsearch Update April 2023
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