Table 9.

GIMC and MBC indexes. Adapted from [27].

Risk	Indicator	Reference Guideline for Human Health
Microbiological	GIMC	1000 < GIMC < 5000: Intermediate contamination
		GIMC > 10,000: Very high contamination
	MBC (ratio)	MBC < 3: No worsening of the GIMC evaluation
Endotoxin inhalation	EU [EU/m3]	90 [56]
		50–200 [57]