PELs can vary significantly between countries due to differences in regulatory frameworks, economic considerations, and scientific interpretations. For instance, the European Union and other countries may have different exposure limits and standards compared to OSHA in the United States. International organizations such as the World Health Organization (WHO) and the International Labour Organization (ILO) also provide guidelines, but these are not legally binding unless adopted by national legislation. Employers operating in multiple jurisdictions need to be aware of and comply with the respective PELs to ensure worker safety.
