Unraveling the microbial diversity and its complexity in petroleum reservoir environments has been a challenge throughout the years. Despite the techniques developed in order to improve methodologies involving DNA extraction from crude oil, microbial enrichments using different culture conditions can be applied as a way to increase the recovery of DNA from environments with low cellular density...

The present article describes the potential utility of derivative ultraviolet (UV) spectrophotometric technique to detect petroleum products (gasoline, kerosene and diesel) in fire debris residues. Derivative UV spectra of these petroleum products were recorded in their neat state, and compared with those obtained from fire debris samples in order to distinguish them. Derivative UV spectrophoto...

This anecdotal, non-systematic review serves to explore the principles and methods of effective oil decontamination from cutaneous wounds, particularly crush injuries. The current expansion of the petroleum industry is necessary to meet increasing world demands for oil. Most stages of oil refining and applications involve significant injury risks, particularly for crush injuries that become con...

Global flaring and venting of petroleum–associated gas is a significant source of greenhouse gas emissions and airborne contaminants that has proven difficult to mitigate over the years. In the petroleum industry, poor efficiency in the flare systems often result in incomplete combustion which produces a variety of volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs) and i...

The residual film toxicity, fumigant toxicity and repellent effect of methanol extract of root bark of Calotropis gigantea (Linn) and its chloroform and petroleum ether (40-60°C) soluble fractions were evaluated against several inster of larvae and adult of Tribolium castaneum. In residual film toxicity, methanol extract and its chloroform and petroleum ether fractions showed insecticidal activ...

Response issued draft vapor intrusion guidance (EPA, 2002), which specifically states that it is not recommended for Subtitle I underground storage tank (UST) sites. EPA's Office of Underground Storage Tanks (OUST) is thus currently developing guidance to address petroleum vapor intrusion (PVI) at UST sites. OUST has consulted on several occasions with experts in the field of vapor intrusion an...

Response issued draft vapor intrusion guidance (EPA, 2002), which specifically states that it is not recommended for Subtitle I underground storage tank (UST) sites. EPA's Office of Underground Storage Tanks (OUST) is thus currently developing guidance to address petroleum vapor intrusion (PVI) at UST sites. In September 2009, OUST assembled experts in the field of vapor intrusion and petroleum...

A soil washing study was performed to evaluate the treatability of New River sand contaminated in the laboratory with a petroleum distillate. Unaltered and base-extracted sands were mixed with petroleum hydrocarbons, equilibrated, and washed with water or a surfactant at two different pH values (7 and 12). The surfactant had no significant effect on contaminant removal efficiencies at neutral p...

Plant material was collected from Western Ghats, India, shade-dried and extracted successively with different polarity solvents of petroleum ether and ethyl acetate. The extracts were tested for their antimicrobial activity against Gram-positive and Gram-negative bacteria and against a fungal species using the disc-diffusion method. The antimicrobial activity of extracts of Pongamia pinnata was...