Documents xylene 13 results

"Solvent Neurotoxicity presents a comprehensive summary of the latest information available regarding acute and chronic neurotoxicity of a number of solvents. Ten solvents (Chloromethane; Dichloromethane; N-Hexane; Methyl Ethyl Ketone; Methyln N-Butyl Ketone; Styrene; Toluene; 1,1,1-Trichloroethane, Trichloroethylene, and Xylene) and two mixtures of solvents (White Spirit, Mixed solvent exposure) have been selected based on their widespread use, as well as the mounting evidence from research concerning the neurotoxicity of these particular solvents. Evidence is presented from animal and human experiments, clinical observations, and epidemiological studies. The various methods used to establish a neurological diagnosis are described as well, and the advantages and disadvantages of these methods are discussed."

"BACKGROUND:Acute and chronic exposure to xylene can result in a range of negative health effects. However, xylene is widely used and emitted in the air of workplaces.OBJECTIVES:To evaluate xylene vapor concentrations to guide the design and evaluation of a local exhaust ventilation (LEV) system to reduce exposure in a pesticide production factory.METHOD:A real time volatile organic compound (VOC) monitor was used to determine the workers' time-weighted average (TWA) exposure. A LEV system was designed, and then, workers' exposure to xylene vapor was evaluated.RESULTS:We found that worker's exposure to xylene (4·7±5·5 ppm) was lower than the standards recommended by the American Conference of Governmental Industrial Hygienists (ACGIH) and the Occupational safety and health administration (OSHA). Despite the low TWA exposures, the short-term exposures for some workers were higher than STEL levels. Three canopy hoods were designed and installed with capture velocities of 0·508 m second(-1) and duct velocity of 10·16 m second(-1).CONCLUSION:We found that an exhaust ventilation system had a significantly reduced occupational exposure to xylene vapor."