Table 2.

Microbial air concentration obtained at the repositories of the National Archive of the Republic of Cuba (NARC).

Repositories	CFU · m−3
	Fungi	Bacteria	Total microorganisms*	T (°C)	RH (%)
Map library (ML)	60a	502c	562	24.0 ± 0.1	52 ± 1.0
Photo library (PL)	261b	1149d	1410	28.0 ± 0.5	65 ± 1.0

^a,b,c,dIndicates significant differences according to the Student's test (P≤ 0.05) on comparing the fungi and bacteria concentration between the repositories of NARC. The microbial determination was made in 5 and 2 points by triplicate, respectively and the data averaged (n = 21). *Indicates the sum of the median concentration of fungi and bacteria.