Table 6.

Hazard quotients for normal and worst-case exposure scenarios to particulate matter (PM₁₀)

Exposed group	Exposure
	Intermediate		Chronic
Normal	Worst case	Normal	Worst case
Infant (birth to 1 year)	2.0×10−2	4.2×10−1	1.0×101	2.44×102
Child (6–12 years)	1.1×10−1	4.2×10−1	3.62×102	1.45×103
Adult (19–75 years)	3.0×10−2	2.7×10−1	2.81×102	2.25×103

The 1-hour (acute) scenario was not considered since a 1-hour reference exposure level value for PM₁₀ was not found in the literature.