Exposure-response relationship between styrene exposure and central nervous functions.

HETA 98-0131-2704, U.S. Precision Lens Incorporated, Cincinnati, Ohio.

“…6 Several studies have documented weakness, increased reaction times, and abnormal electroencephalograms in workers exposed to styrene. 6,9,10,11 Air concentrations of styrene were either undocumented or at times exceeded 100 ppm for some of the employees in these studies.…”

Behavioral methods and organic solvents: questions and consequences.

“…On the contrary, the effects from long-term CS2 exposure proved to be lasting and, in some cases, even worsened over the years to come. Later on, Hanninen's group reported numerous studies on the behavioral effects from occupational exposures to other compounds, e.g., styrene (16), toluene (17), and solvent mixtures (18,19). A series of experimental studies on solvent exposure has also been performed by Riihimaki and his colleagues (20,21 (24) has labeled "quasi-experimental field studies" were performed directly at the work site in industries in which workers were exposed to organic solvents.…”

HETA 97-0217-2667, Design Evolution 4, Inc., Lebanon, Ohio.

“…10 Several studies have documented weakness, increased reaction times, and abnormal electroencephalograms in workers exposed to styrene. 9,10,19,20 Air concentrations of styrene were either undocumented or at times exceeded 100 ppm for some of the employees. OSHA has established an 8-hr TWA PEL of 50 ppm for styrene.…”