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Comparing the Effect of Kerosene Pollution on Forest and Industrial Soil Microbial Community
2016
Ziadabadi, Zahra | Hassanshahian, Mehdi
Kerosene is the colorless liquid and slightly heavier than gasoline thatspecific odor removes after evaporation. Soil and underground water source arecontaminated with different pollutants such as petroleum hydrocarbons. These pollutantshave various negative environmental effects on soil and surrounding environment. Theaim of this research is to understand the effect of kerosene pollution on two differentsoils. The two different collected soils include Industrial and Forest soil. Six microcosmswere designed. Indeed, each soil has three microcosms: unpolluted microcosm, pollutedmicrocosm, and polluted microcosm with nutrient (Nitrogen and Phosphor). Some factorswere assayed in each microcosm during 120 day of experiment. These factors includetotal heterotrophic bacteria, total kerosene degrading bacteria, dehydrogenase enzyme,and kerosene biodegradation. The results of this study show that the highest quantity ofheterotrophic bacteria is related to forest soil (6×109). The quantities of kerosenedegrading bacteria significantly were lower than heterotrophic bacteria in all soilmicrocosms. The quantity of kerosene degrading bacteria have decrement pattern until60th day of experiment, but, after this day, these bacteria have increment pattern. The bestdehydrogenase activity between different microcosms is related to polluted microcosmwith kerosene except for farmland soil. The highest biodegradation of kerosene in allstudied soil belongs to industrial microcosm (95%). Statistical analysis of the resultsshows that there is a significant correlation between MPN quantity of heterotrophicbacteria and other assayed factrs. Also, forest soil has significant difference with othersoils. It may be possible to propose appropriate strategies for bioremediation of differentstudied soil types using the results obtained in this research.
اظهر المزيد [+] اقل [-]Organic carbon concentration profiles in recent cave sediments: records of agricultural pollution or diagenesis?.
1996
Bottrell S.H.
Relationship between foliar injury and changes in antioxidant levels in red and Norway spruce exposed to acidic mists.
1991
Chen Y.M. | Lucas P.W. | Wellburn A.R.
Haematological parameters as predictors of blood lead and indicators of lead poisoning in the black duck (Anas rubripes).
1989
Pain D.J.
Effects of ammonia on periphytic communities.
1990
Niederlehner B.R. | Cairns J. Jr.
Trends in organochlorine and mercury levels in gannet eggs.
1990
Newton I. | Haas M.B. | Freestone P.
Volatile organic compounds in urban rivers and their estuaries in Osaka, Japan.
1997
Yamamoto K. | Fukushima M. | Kakutani N. | Kuroda K.
Trace elements in vegetables grown in an industrial area in relation to soil and air particulate matter.
1996
Voutsa D. | Grimanis A. | Samara C.
Accumulation of aluminum and iron by bryophytes in streams affected by acid-mine drainage.
1996
Engleman C.J. Jr. | McDiffett W.F.
