نتایج جستجو برای: petroleum accumulation

تعداد نتایج: 165841  

2011

The effect of crude oil contaminated soil on the growth of seashore Paspalum ( Paspalum vaginatum .) seedlings was investigated. Plants were grown in soil containing different concentrations: 0%, 0.5%, 1.0%, 2.0% and 3% (w/w) of Abura crude petroleum oil. Growth parameter such as shoot number, shoot length, leaf area and biomass accumulation were evaluated. The results showed that crude oil imp...

2003
Philip A. Meyers

As part of a broad, multldlsciplinary effort to monitor the impact of petroleum exploration activities on the outer continental shelf areas of the Gulf of Mexico, the local effects of a drilllng rig on the benthic environment have been investigated. Petroleum hydrocarbons in or on seawater can become associated with suspended sediment partlcles I and be transported downward and incorporated int...

2017
Sonakshi Mishra Peggy Wefers Mark Schmidt Katrin Knittel Martin Krüger Marion H. Stagars Tina Treude

The microbial community response to petroleum seepage was investigated in a whole round sediment core (16 cm length) collected nearby natural hydrocarbon seepage structures in the Caspian Sea, using a newly developed Sediment-Oil-Flow-Through (SOFT) system. Distinct redox zones established and migrated vertically in the core during the 190 days-long simulated petroleum seepage. Methanogenic pet...

Journal: :international journal of environmental research 2015
s. veerasingam p. vethamony p. vethamony r. mani murali m.t. babu

the mandovi estuary is highly influenced by mining and tourism related activities in the centralwest coast of india. vertical fluxes and accumulation of petroleum hydrocarbons (phcs) in three sedimentcores (d1, c1 and og) from the mandovi estuary were assessed using ultra-violet fluorescence (uvf)spectroscopy. the range of phcs values in estuarine sediments varied from 5.4 to 12.34 μg/g enrichm...

2012
Toyin S. Ogunleye

Nigeria’s foreign exchange reserves, which was US$5.4 billion in 1999, rose to an overwhelming level of US$51.3 billion at end-2007 and further to US$53.0 billion in 2008, but owing to the crash in the international price of crude oil in 2008 and the aftermath of the global financial crisis, the reserve declined to US$42.4 billion in 2009. In trying to determine the optimum level, the paper ado...

Journal: :research in pharmaceutical sciences 0

artemisia is an important genus of iranian flora whose potent anti-proliferative effect has been demonstrated previously on human cancerous cell lines. in the current study, further fractionation was carried out on the petroleum ether extract of a. aucheri and their cytotoxic effects were evaluated on three human cancer cell lines. cell viability was determined by 3-(4,5-dimethylthiazol-2yl)-2,...

Journal: :Biotechnology advances 2007
Yusuf Chisti

Continued use of petroleum sourced fuels is now widely recognized as unsustainable because of depleting supplies and the contribution of these fuels to the accumulation of carbon dioxide in the environment. Renewable, carbon neutral, transport fuels are necessary for environmental and economic sustainability. Biodiesel derived from oil crops is a potential renewable and carbon neutral alternati...

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