Polycyclic aromatic hydrocarbons have been linked to
the contamination of soil making it toxic, carcinogenic potential, and
resulting in bio accumulation. It has been determined phytoremediation is an
environmental friendly and low cost option to detoxify soil contaminated by polycyclic
aromatic hydrocarbons. The use of alfalfa in conjunction with rhizosphere microorganisms
was tested for their effectiveness on pyrene removal. After 45 days of joint
treatment there was a significant decrease in the amount of pyrene. As a
result, the use of rhizosphere microorganisms enabled the result of microbial
community diversity and increased soil dehydrogenase. However, the use of
rhizosphere microorganisms were unsuccessful at changing the pathway of pyrene
degradation.
Source: http://origin-ars.els-cdn.com/content/image/1-s2.0-S0147651314004096-gr1.jpg
Citation
Jinshao Ye, Hua Yin, Hui Peng, Jieqiong Bai, Yuepeng Li, Pyrene removal and transformation by joint application of alfalfa and exogenous microorganisms and their influence on soil microbial community, Ecotoxicology and Environmental Safety, Volume 110, December 2014, Pages 129-135, ISSN 0147-6513, http://dx.doi.org/10.1016/j.ecoenv.2014.08.031.
(http://www.sciencedirect.com/science/article/pii/S0147651314004096)
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