Dangerous substances - any liquid, gas or solid that poses a risk to workers'
health or safety - can be found in nearly all workplaces. Across Europe, millions
of workers come into contact with chemical and biological agents that can harm
them. Exposure refers to when an employee is subjected to a hazardous chemical
in the course of employment through any route of entry (inhalation, ingestion,
skin contact or absorption, etc.), and includes potential, accidental or possible,
exposure. OSHA have detailed specific permissible exposure limits to ensure that
employees are not exposed to hazardous levels of chemicals.
Interpretation of exposure measurements has evolved into a framework based on
the lognormal distribution. Most available practical tools are based on
traditional frequentist statistical procedures that do not satisfactorily
account for censored data and are not amenable to simple probabilistic risk
statements. A new method offers promising solutions to these challenges.
The authors describe in the Annals of Work Exposures and Health the freely
available (www.expostats.ca) toolkit.
AplusA-online.de - Source: Annals of Work Exposures and Health