OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 4 Chemical Hazards, Biological Hazards and Harmful Substances

Section 42 Lead – air monitoring

To determine if workers have the potential to be exposed to lead at a work site, an employer must perform a hazard assessment as required by section 21. Since lead can be ingested or inhaled as dust or fume, the assessment should focus on these routes of exposure. If surfaces are tested for lead, the guidelines provided in the Workplace Health and Safety Bulletin “Lead in the Workplace” may be used.

This section requires that monitoring be conducted on a “regular” basis. The frequency of monitoring at the workplace will depend on a number of factors. In general, monitoring should be done at least annually. However, it may need to be done more frequently if

(a) lead exposure levels at the workplace tend to vary either due to the nature of the process or environmental conditions such as temperature, pressure and humidity

(b) new equipment or work processes are introduced to the workplace that may affect worker exposure levels,

(c) work practices or procedures change, or

(d) workers experience adverse health effects due to exposure.

For more information
Lead in the Work Site
Bulletin CH061