کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4426902 | 1309139 | 2008 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Natural attenuation of diesel aliphatic hydrocarbons in contaminated agricultural soil
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Natural attenuation of diesel aliphatic hydrocarbons in contaminated agricultural soil Natural attenuation of diesel aliphatic hydrocarbons in contaminated agricultural soil](/preview/png/4426902.png)
چکیده انگلیسی
A diesel fuel spill at a concentration of 1Â LÂ mâ2 soil was simulated on a 12Â m2 plot of agricultural land, and natural attenuation of aliphatic hydrocarbons was monitored over a period of 400Â days following the spill after which the aliphatic hydrocarbon concentrations were found to be below the legal contamination threshold for soil. The main fraction of these compounds (95%) remained at the surface layer (0â10Â cm). Shortly after the spill (viz. between days 0 and 18), evaporation was the main origin of the dramatic decrease in pollutant concentrations in the soil. Thereafter, soil microorganisms used aliphatic hydrocarbons as sources of carbon and energy, as confirmed by the degradation ratios found. Soil quality indicators, soil microbial biomass and dehydrogenase activity, regained their original levels about 200Â days after the spill.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 151, Issue 3, February 2008, Pages 494-502
Journal: Environmental Pollution - Volume 151, Issue 3, February 2008, Pages 494-502
نویسندگان
Antonio Serrano, Mercedes Gallego, Jose Luis González, Manuel Tejada,