Table 4.

Calculated CR per 10⁶ at LADD (mg/kg/day) for inhalation exposure to MTBE in petrol stations.

Type of Job	Individual Petrol Station
	A	B	C	D	E	F	G	H
Operating workers	0.170 *	0.210	0.198	0.240	0.231	0.235	0.194	0.230
Support staff	0.036	0.0314	0.0386	0.046	0.040	0.049	0.026	0.041

* For example: 0.170 per million = 8.52 × 10⁻³ (mg/kg/day) × 2 × 10⁻⁵ (mg/kg/day)⁻¹.