Fig. 8From: Indoor/outdoor particulate matter concentrations and microbial load in cultural heritage collectionsSeasonal variations of viable, cultivable airborne microbes in the Historical Museum of Crete in Heraklion, the Criminology Museum of the University of Athens and the Neophytos Doukas Library in Zagori (indoors, showcases, and outdoors). Number of samples (N = 16)Back to article page