OBJECTIVE The aim of the present study was to determine the prevalence of respiratory symptoms from occupational lung hazards among workers in industries of south Tehran, IRAN. METHODOLOGY This was a cross-sectional study in which by multistage random sampling items on demographic characteristics, cigarette smoking, occupational history and respiratory symptoms were collected of workers. RE...

background: volatile organic compounds (vocs) are human-made chemicals widely spread in the environment and produced by petrochemical industries and petroleum refineries. the aim of this research was to evaluate the distribution of vocs in the ambient air of mahshahr petrochemical complex, iran. methods: this study was a cross-sectional research performed in 2009. we used the method numbered 15...

The term bioremediation has been introduced to describe the process of using biological agents to remove toxic waste from environment. Bioremediation is the most effective management tool to manage the polluted environment and recover contaminated soil. The hazardous wastes generated from the chemical processes/operations are being treated using physico-chemical and biological methods by the re...

Phytoremediation, the use of plants to remediate sites contaminated with organic and inorganic pollutants, and phytomining, the technology involved in extracting the pollutants removed for commercial purposes, are rapidly-growing industries with multi-million dollar markets. This solar-driven, green technology is often favored over more conventional methods of clean-up due to its low cost, low ...

In Industrial complex, major air pollutants like SO2, NOx, SPM, RPM and CO concentrations were standardised. Some site specific air pollutants like fluoride, H2S, methyl mercaptan, hydrogen chloride, vinyl chloride, etc., were also emitted from industries. Methyl mercaptan is a site specific air pollutant in SIPCOT Industrial complex, Cuddalore, TamilNadu. The presence of methyl mercaptan in th...

Laccase belongs to a small group of enzymes called the blue multicopper oxidases, having the potential ability of oxidation. It belongs to enzymes, which have innate properties of reactive radical production, but its utilization in many fields has been ignored because of its unavailability in the commercial field. There are diverse sources of laccase producing organisms like bacteria, fungi and...

Environmental pollution is a world-wide problem, heavy metals belonging to the most important pollutants. The progress of industries has led to increased emission of pollutants into ecosystems. Karoon is the biggest and only navigable river in the South of Iran. Along the Karoon industrial units such as piping, steel, paint making, agriculture, paper mill, fish cultivation, abbottiors, electrop...