Much public attention has been focused on the energy industries in recent years, particularly the electric generation and petroleum industries. This attention is connected to concerns of global warming and the exhaustion of finite natural resources, with the related question of how to optimally meet our nation’s energy needs. One particular point that has received significant attention is the i...

Use of defoaming agents in the pulp and paper industry has evolved over time from use of simple petroleum based products such as kerosene to the state of the art free rinsing silicone emulsions offered by StarChem, LLC. The introduction of new processes and equipment along with the advancement of the defoamer chemistries employed has necessitated different application strategies to maximize pro...

An integrated fuzzy-stochastic risk assessment (IFSRA) approach was developed in this study to systematically quantify both probabilistic and fuzzy uncertainties associated with site conditions, environmental guidelines, and health impact criteria. The contaminant concentrations in groundwater predicted from a numerical model were associated with probabilistic uncertainties due to the randomnes...

PURPOSE Published case-control studies of risks of leukaemia following low exposures to benzene in the distribution of petroleum (gasoline) have not all identified the same level of risk, but the studies have had differences in cohort inclusion, case determination and availability of occupational and lifestyle data. We reviewed the quality and comparability of the data from three (of four) stud...

Oil, petroleum, hydrocarbon — words that have become popular in our modern-day vernacular, but what do they really mean to us? What is oil? How does it form? Where do we find it? How do we look for it? Do we really need it? Why? Are we actually running out? Does its use damage our environment? These are all good questions, but some of the answers are not quite so simple. This issue of Rock Talk...

Fluorescence based methods are increasingly being used for the analysis of crude oils because they offer high speed, low cost, non-contact, and non-destructive testing options. The fluorescence of crude oils is due to the presence of a wide range of cyclic aromatic compounds, with the intensity and temporal behaviour of this fluorescence being directly related to chemical composition. In partic...

BACKGROUND Drynaria quercifolia L. (Family- Polypodiaceae) is a fern grows in Bangladesh used in traditional healing by the Garo tribe of Mymensingh district. In the current study, rhizomes and fertile foliage fronds of this plant have been investigated comprehensively to assess their in vitro membrane stabilizing, thrombolytic and antioxidant properties. METHODS Rhizomes and fertile foliage ...

Problem statement: Petroleum hydrocarbon and petroleum residue (i.e., spent oil) remains the foremost pollutants to the fish communities in various aquatic media-ponds, streams, rivers, creeks, coastal and marine environments through indiscriminate disposal of oil contaminated drilling muds, cutting and oil spillages. Approach: Also, the spent oil enters into aquatic media through run-off follo...

Petroleum has been recognized as a potential environmental contaminant since shortly after the beginning of the Twentieth Century. Reports of the biological consequences of ship wrecks involving cargos of crude and fuel oil began to appear in the popular and scientific press. Scientific literature on the subject was sparse until after World War II when reports of the effects of oil pollution be...