Table 3: Microbial counts in documents.

Type of documentLocationCFU · m−2
BacteriaFungi

Paper map 1 (M1)Map Library (NARC)3.5 1042.2 104
Silk map 2 (M2)Map Library (NARC)7.1 1052.0 102
Paper map 3 (M3)AHCRD203
Paper book 1 (L1)AHCRD21
Paper photograph 1 (F1)HAMLP2.2 1031.0 102
Paper photograph 2 (F2)HAMLP3.7 104
Glass slide 3 (F3)HAMLP3.0 1041.0 103
Silk photograph 3A (F3A)Photo Library (NARC)1.2 1051.5 102
Paper photograph 4 (F4)Photo Library (NARC)3.9 1042.8 104
Paper protocol 1a (P1a)AN1.3 1031.4 103
Paper protocol 1b (P1b)AN4.0 1025.0 102
Paper protocol 2 (P2)AN1.1 1062.0 104