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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue Jan 2015, 36 (1)                                     Back


nstantaneous and historical temperature effects on a-pinene

Bioavailability and dissipation of anthracene from soil with

different alkalinity and salinity

 

Carolina Castro-Silva, V?ctor Manuel Ruiz-Valdiviezo, Sandra Gabriela Rivas-Rivera, Alma Rosa Sosa-Trinidad, Marco Luna-Guido, Laura Delgado-Balbuena, Rodolfo Marsch and Luc Dendooven*

Laboratory of Soil Ecology, Cinvestav, Av. I.P.N. 2508 C.P. 07360, M?xico D.F., M?xico

*Corresponding Author E-mail: dendooven@me.com

 

 

 

 Publication Data

Paper received:

14 June 2013

 

Revised received:

19 December 2013

 

Re-revised received:

14 February 2014

 

Accepted:

05 March 2014

 

Abstract

Bioavailability of contaminants, such as anthracene (Anthra), a polycyclic aromatic hydrocarbon (PAHs), and their removal from soil has been related to their extractability with non-exhaustive techniques, such as hydroxypropyl-beta-cyclodextrin (HPCD) or n-butanol. Anthra was extracted with HPCD, n-butanol and by exhaustive ultrasonic extraction method from sterilized and unsterilized alkaline soil of the former lake Texcoco, having pH ranging from pH 8.2 to 10.1 and electrolytic conductivity varying from 1.2 dS m-1 to 95.2 dS m-1, respectively. About 24.4 and 37.6% of Anthra was removed biologically from soil as estimated by exhaustive technique after 56 days. The percentage of Anthra that was removed from soil by exhaustive technique was not related to the amount that was extractable with HPCD or n-butanol. It was found that the Anthra extractable with n-butanol or HPCD did not correlate well with the removal of the contaminant from soil. In this study, the removal of Anthra from soil could not be predicted by the amount of Anthra that was extracted with n-butanol or HPCD ?  

 

 Key words

 

Hydroxypropyl-beta-cyclodextrin, n-Butanol; Polycyclic aromatic hydrocarbon, Soil characteristics

 

 

 

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