Workers' compensation defense may be necessary for some California companies that foresee a future risk of serious health related problems among multiple employees. The medical costs of multiple workers that suffer health damage from chemical exposure may be extensive for an employer, making a strong workers' compensation defense valuable. The National Institute for Occupational Health and Safety recently completed a study that found high levels of Benzene exposure in specific oil and gas industry positions.
The Institute believes that employees that regularly work on job sites where fracking or flowback takes place may be regularly exposed to this cancer-causing gas. Researchers found that when employees opened tank hatches located on well sites, close to 88 percent of the air samples contained high levels of Benzene beyond recommended levels. The federal recommendation for exposure limits Benzene to .1 part per million in the entirety of a worker's shift.