Table 3 Bacterial quantity across sampler types and experimental conditions. Values reported are mean and standard deviations of cell equivalents per 100 cm2 of sampler per time of exposure (day for USA and Finland, hour for chamber). Note that bacterial determinations relied on different qPCR protocols in the USA/chamber studies and the study part in Finland, and thus, absolute values are not well comparable between study parts but are comparable between sampler types within environment
From: Passive dust collectors for assessing airborne microbial material
Environment | Petri dish | TefTex | EDC1 | EDC2 | |
USA | Blank | 0.2 (0) | 0.1 (0) | 0.1 (0) | 0.1 (0.1) |
House 1 low | 12 (3) | 7 (4) | --a | 14 (8) | |
House 2 low | 380 (110) | 21 (7) | 13 (5) | 17 (5) | |
House 3 low | 690 (120) | 25 (14) | 38 (39) | --a | |
House 1 high | 20 (4) | 8 (2) | 12 (8) | 8 (1) | |
House 2 high | 33 (12) | 14 (4) | 7 (1) | 12 (8) | |
House 3 high | 270 (160) | 19 (9) | 14 (10) | 42 (60) | |
Petri dish | TefTex | EDC3 | |||
Finlandb | Blank | 11 (6) | 9 (13) | 17 (24) | |
House 1 | 2000 (900) | 310 (89) | 820 (280) | ||
House 2 | 2800 (280) | 890 (280) | 2100 (240) | ||
House 3 | 1700 (170) | 2200 (260) | 1900 (24) | ||
House 4 | 3100 (140) | 610 (120) | 2600 (440) | ||
House 5 | 2800 (780) | 610 (110) | 1400 (560) | ||
Office 1 | 540 (150) | 66 (89) | 180 (40) | ||
Office 2 | 660 (590) | 100 (3) | 400 (55) | ||
Labspace | 220 (40) | 78 (65) | 73 (11) | ||
Petri dish | TefTex | EDC1 | EDC2 | ||
Chamber | Round 1 | 410 (41) | 1200 (360) | 570 (140) | 320 (47) |
Round 2 | 670 (110) | 610 (26) | 190 (24) | 100 (4) | |
Round 3 | 140 (34) | 260 (85) | 250 (29) | 87 (16) | |
Round 4 | 610 (54) | 490 (41) | 200 (21) | 160 (14) | |
Round 5 | 630 (41) | 1200 (520) | 270 (120) | 110 (7) | |
Round 6 | 120 (6) | 290 (20) | 100 (12) | 91 (9) |