نتایج جستجو برای: phenanthrene anthracene
تعداد نتایج: 5553 فیلتر نتایج به سال:
A Rhodococcus sp. isolated from contaminated river sediment was investigated to determine if the isolate could degrade high molecular mass polycyclic aromatic hydrocarbons. The Rhodococcus sp. was able to utilize anthracene (53%), phenanthrene (31%), pyrene (13%), and fluoranthene (5%) as sole source of carbon and energy, but not naphthalene or chrysene. In a study of the degradation of anthrac...
Polycyclic aromatic hydrocarbons (PAHs) are one of the most common contaminants in soil. Arbuscular mycorrhizal (AM) fungi make host plants resistant to pollutants. This study aims to evaluate the impact of anthracene, phenanthrene and dibenzothiophene on the AM fungus Rhizophagus custos, isolated from soil contaminated by heavy metals and PAHs, under monoxenic conditions. We found a high level...
Infrared absorption spectra of the CH stretching region were observed for naphthalene, anthracene, phenanthrene, pyrene, and perylene using a heated, supersonic, slit-jet source and cavity ringdown spectroscopy. Band positions and intensities recorded with 0.2-cm-1 resolution were compared with previous gas-phase and argon matrix isolation experiments, as well as theoretical calculations. The l...
Abstract The purpose of this study was to evaluate the concentration PAHs and health risk in edible mushrooms using magnetic solid phase extraction (MSPE) gas chromatography/mass spectrometry (GC/MS) method. Based on results, total range from 0.82 6.25 µg/kg (with means 3.85 ± 0.24 µg/kg). In study, acenaphthylene (Ace) had maximum mean level mushroom samples (0.84 0.19 μg/kg) benzo(a)pyrene (B...
Microorganisms (17 bacteria and 3 fungi) isolated from crude oil-contaminated soils were evaluated for degradation of five polyaromatic hydrocarbons (PAHs), both in the absence (-T80) presence surfactant Tween-80 (+T80) at a 10 mg L?1 concentration each PAH. Results heat map Tukey HSD revealed that highest PAH was observed by Kocuria rosea +T80 treatment. Degradation (%) individual (-T80, +T80)...
The main purpose of this research is studying the possibility of bioremediation of polycyclic aromatic hydrocarbons (PAHs) contaminated soils in Iran’s tar refinery area located in Isfahan. For many years a great quantity of tar produced by neighboring metallurgical plant has been stored in lagoons as natural reservoirs, causing the contamination of soil in this area. Microorganisms capable of ...
This study assessed the heavy metals and polycyclic aromatic hydrocarbons (PAHs) pollutant in soil around petrol filling stations automobile mechanic workshops. Samples of were acquired from depth range 0–15 cm. Toxic analyzed with atomic absorption spectrophotometry. The PAHs using phytochemical chromatographic analysis by Soxhlet extraction method. tested was weakly acidic (6.12–6.81). trend ...
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