Table 1.
Daily average fluorescent bioaerosol count (FBC) (a) fine size A (<3 μm), and (b) coarse size (10 μm).
| Month | Day | UVGI | SD | Control | SD | p-Values | Proportion (%) of Reduction |
| Table 1a | |||||||
| October | DAY1 | 115,507 | 37,662 | 130,675 | 68,453 | <0.001 | 11.6% |
| November | DAY2 | 114,829 | 42,628 | 150,561 | 63,257 | <0.001 | 23.7% |
| December | DAY3 | 124,344 | 40,464 | 115,959 | 45,918 | <0.001 | −7.2% |
| DAY4 | 123,349 | 44,746 | 147,970 | 45,798 | <0.001 | 16.6% | |
| DAY5 | 72,802 | 30,987 | 104,317 | 34,547 | <0.001 | 30.2% | |
| DAY6 | 82,625 | 28,117 | 101,161 | 39,277 | <0.001 | 18.3% | |
| DAY7 | 74,993 | 44,155 | 111,091 | 77,674 | <0.001 | 32.5% | |
| DAY8 | 118,451 | 60,586 | 139,756 | 49,941 | <0.001 | 15.2% | |
| DAY9 | 119,348 | 46,224 | 139,737 | 65,215 | <0.001 | 14.6% | |
| DAY10 | 93,896 | 44,664 | 156,205 | 64,377 | <0.001 | 39.9% | |
| DAY11 | 81,260 | 56,607 | 81,455 | 51,393 | 0.747 | 0.2% | |
| January | DAY12 | 91,892 | 27,630 | 106,601 | 43,190 | <0.001 | 13.8% |
| DAY13 | 74,925 | 30,986 | 77,691 | 46,437 | 0.293 | 3.6% | |
| DAY14 | 78,767 | 26,301 | 104,253 | 48,711 | <0.001 | 24.4% | |
| DAY15 | 63,986 | 20,363 | 59,964 | 24,181 | <0.001 | −6.7% | |
| DAY16 | 92,164 | 36,499 | 70,473 | 31,362 | <0.001 | −30.8% | |
| DAY17 | 119,133 | 55,323 | 135,855 | 50,214 | <0.001 | 12.3% | |
| DAY18 | 159,660 | 79,687 | 106,932 | 50,690 | <0.001 | −49.3% | |
| DAY19 | 115,687 | 67,385 | 96,060 | 45,830 | <0.001 | −20.4% | |
| DAY20 | 72,978 | 40,714 | 53,381 | 39,227 | <0.001 | −36.7% | |
| Table 1b | |||||||
| Month | Day | UVGI | SD | Control | SD | p-Values | Proportion (%) of Reduction |
| October | DAY1 | 1812 | 1020 | 2539 | 1604 | <0.001 | 28.6% |
| November | DAY2 | 1731 | 997 | 2073 | 1279 | <0.001 | 16.5% |
| December | DAY3 | 2058 | 1133 | 1911 | 989 | 0.034 | −7.7% |
| DAY4 | 2408 | 1433 | 2361 | 1223 | <0.001 | −2.0% | |
| DAY5 | 1406 | 1031 | 1521 | 843 | 0.008 | 7.6% | |
| DAY6 | 1437 | 947 | 1596 | 935 | 0.002 | 10.0% | |
| DAY7 | 1338 | 1232 | 1341 | 1229 | 0.584 | 0.2% | |
| DAY8 | 1872 | 1401 | 1735 | 852 | 0.732 | −7.9% | |
| DAY9 | 2087 | 1230 | 1432 | 1029 | <0.001 | −45.8% | |
| DAY10 | 1352 | 1189 | 1940 | 1284 | <0.001 | 30.4% | |
| DAY11 | 1431 | 1361 | 977 | 1016 | <0.001 | −46.4% | |
| January | DAY12 | 1446 | 830 | 1612 | 936 | 0.002 | 10.3% |
| DAY13 | 1419 | 1121 | 1896 | 2012 | <0.001 | 25.2% | |
| DAY14 | 1751 | 1252 | 2045 | 1459 | 0.001 | 14.4% | |
| DAY15 | 901 | 496 | 997 | 738 | 0.092 | 9.6% | |
| DAY16 | 1121 | 735 | 999 | 614 | 0.021 | −12.3% | |
| DAY17 | 1507 | 1061 | 1559 | 820 | 0.144 | 3.3% | |
| DAY18 | 1500 | 960 | 1260 | 841 | <0.001 | −19.0% | |
| DAY19 | 1228 | 944 | 1140 | 810 | 0.306 | −7.7% | |
| DAY20 | 885 | 681 | 587 | 585 | <0.001 | −50.7% | |
Bold numbers indicate lower FBC in the ultraviolet germicidal irradiation (UVGI) room; Italic numbers indicate statistically significant higher FBC in the UVGI room; SD: standard deviation.