background: several effects of volatile organic compounds (vocs) have been recognized such as toxic and carcinogenic human health effects. to evaluate cancer risk of benzenes air samples were taken, at an automobile manufacturing painters in tehran following inhalation exposure. methods: to perform this study, cross-sectional was done in 2016. sampling was carried out by active pump sampler usi...

Deep-UV absorption spectrometry for detection of toxic airborne gases, instance, Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) has drawn considerable attention owing to its high sensitivity reliability. However, the development a deep-UV absorbance detector having good sensitivity, portability, low-volume gas cell with applicability micro Gas Chromatography (μGC) is challenging. Herein we ...

This study aimed to determine the impact of artisanal refinery operations on physicochemical and microbiological properties soil water in Igia-Ama, Tombia Kingdom, Rivers State, Nigeria. Physicochemical parameters along with concentrations heavy metals, polyaromatic hydrocarbons (PAHs), total petroleum hydrocarbon (TPH), benzene, toluene, ethylbenzene xylene (BTEX), polychlorinated biphenyls (P...

In this paper Bibulus will be introduced. Bibulus is a very flexible, multilingual system for formatting bibliographies in several formats, including LTEX. Bibliographies are stored in XML, but Bibulus includes a program to convert old BTEX databases. Bibulus is being developed as open-source software at http://savannah.nongnu.org/ projects/bibulus/. This paper will first summarise the curren...

Over the past fifty years, gas sensors based on metal semiconducting oxides (MOXs) have drawn attention due to their performance in detecting various gases. Thus, we report herein a BTEX gases sensor hematite (α-Fe2O3) microrhombuses synthesized via hydrothermal method. X-ray diffraction and absorption spectroscopy analyses indicated presence of pristine phase after treatment. Electron microsco...

Introduction Gasoline is a complex solution of different hydrocarbons. Naturally occurring petroleum contains aromatic hydrocarbons, a class of unsaturated hydrocarbons that includes benzene, toluene, ethylenzene, and xylene (collectively known as BTEX). Since the EPA banned lead additions to gas in 1973, aromatic hydrocarbons were added to increase the octane concentration, thereby maximizing ...

Groundwater is one of our most valuable natural resource. More than 50% of the U.S. population depends on groundwater for domestic use and more than 95% of the rural population is dependent on groundwater. A major portion of industries and agriculture use groundwater. These numbers suggest that the personal and economic health of the nation is dependent on groundwater. Contamination of groundwa...