Monitoring lead exposure involves measuring and evaluating the levels of lead in the work environment and workers’ bodies to make sure they stay within limits with two monitoring methods, in place;
Airborne lead monitoring involves assessing the amount of lead in the air that workers inhale during their work hours using personal air monitoring devices worn by workers throughout their shifts to collect samples for analysis purposes. These findings are then compared to set limits for exposure such as the Workplace Exposure Limit (WEL) which stands at 0.15 mg/m³ over an 8 hour time weighted period to ascertain if further precautions or measures need to be implemented.
Biological Monitoring (Blood Lead Testing); The process includes checking the level of lead, in a workers blood to determine the amount of lead their body has absorbed. The workers undergo blood tests. In case the lead levels surpass certain limits (for example 50 µd/dL for most workers or 25 µd/dL for women capable of bearing children) actions, like medical assessment or limiting exposure may be necessary.
Monitoring exposure is important for employers to detect overexposure risks, among workers and evaluate the efficacy of safety measures in place to comply with health regulations and safeguard employees from the adverse impacts of lead exposure.