A comparison of occupational exposure limits and their relationship to reactive oxide species

Measurement of the ROS of a material without an exposure limit may be used as a justification to limit potential respirable dust hazards utilizing control banding, administrative controls or identifying respiratory protection. A comparison such as this provides an informed basis for meaningful hazard analyses in the absence of established exposure guidelines, and may be more justifiable than assignment to the Particles Not Otherwise Specified TLV® category.