S3.

Evaluation of air quality in Site III according to the sanitary standards for non-industrial premises.

Group of microbes	Range of value (CFU/m3)	Pollution degree	Site III
			Reading room		Manager office
			37°C	22°C	37°C	22°C
Bacteria	<50	Very low
	50-100	Low	√		√
	101-500	Intermediate				√
	500-2000	High		√
	>2000	Very high
Fungi	< 25	Very low
	<100	Low
	< 500	Intermediate				√
	< 2000	High		√
	> 2000	Very high