Table 2.4 – Determination of Action and Limit Levels for Construction Dust Impact Monitoring

Parameter	Action Level	Limit Level
1-hr TSP (average)	BL ≤ 384 μg/m^3, AL = (BL x 1.3 + LL)/2 BL > 384 μg/m^3, AL = LL	500μg/m^3