TABLE 1. Fungal concentrations (CFU m^-3) registered in the indoor and outdoor environments and the obtained indoor/outdoor ratios (I/O).

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ML: Map library. a,b,c,d,e,f: Indicative of significant differences when comparing the values obtained in the naturally ventilated repositories located to the south and the north of the building according to the Student’s t test (P ≤ 0.01).