Table 3.

Summary of pilot-scale decontamination efficacy results for Bacillus atrophaeus spores

Test ID	Carpet	Ceiling tile	Unpainted concrete†	Glass	Painted wallboard	Laminate	Wood	Galvanized metal	Avg by test*
Test C1	7·04 ± 1·21	6·46 ± 0·54	1·90 ± 1·10	6·45 ± 1·78	5·90 ± 0·71	6·82 ± 1·27			6·53 ± 0·43
Test C2	7·61 ± 0·00	6·77 ± 0·00		7·17 ± 0·00	7·45 ± 0·00	7·54 ± 0·01	7·88 ± 0·02	7·46 ± 0·00	7·31 ± .34
Test C3	7·61 ± 0·00	6·66 ± 0		7·29 ± 0·07	7·63 ± 0·07	7·80 ± 0·01	7·78 ± 0·00	7·35 ± 0·00	7·40 ± .45
Test C4	7·50 ± 0·01	6·56 ± 0		7·48 ± 0·07	7·36 ± 0	7·46 ± 0	7·76 ± 0·02	7·43 ± 0	7·27 ± .4
Test C5	7·25 ± 0·23	6·62 ± 0		7·28 ± 0·08	7·19 ± 0·01	7·54 ± 0	7·36 ± 0·31	7·47 ± 0	7·18 ± .34
Test C6	6·89 ± 0·68	4·85 ± 0·41		7·74 ± 0	7·50 ± 0·07	7·13 ± 0·37	7·89 ± 0·01	6·62 ± 1·48	6·82 ± 1·15
Test C7	5·83 ± 1·02	5·71 ± 0·92		6·70 ± 0·82	5·53 ± 1·39	7·02 ± 0·76	7·62 ± 0·27	4·04 ± 2·29	6·16 ± .66
Test C8	7·70 ± 0·17	6·35 ± 0·48		7·19 ± 0·07	6·89 ± 0·81	7·55 ± 0	7·65 ± 0·09	6·79 ± 0·98	7·14 ± .54
Test C9	6·08 ± 2·13	6·64 ± 0·07		6·16 ± 1·19	6·59 ± 1·01	7·30 ± 0	7·31 ± 0·06	6·12 ± 1·32	6·55 ± .49
Test C10	7·75 ± 0	6·52 ± 0·25		6·76 ± 0·73	6·48 ± 0·85	7·63 ± 0	7·64 ± 0·02	5·54 ± 2·02	7·03 ± .62
Avg by material	7·13 ± 0·62	6·31 ± 0·68	1·09 ± 1·63	7·02 ± 0·50	6·85 ± 0·71	7·38 ± 0·30	7·65 ± 0·19	6·45 ± 1·12

Results are average of log reductions ± SD on coupons for each of the three locations where coupons were placed: above ceiling tile, on desk and below desk. Log reduction results in bold indicate all test coupons (n = 9; 3 replicates at each location) for that material were completely decontaminated.

^*Average LR by test calculated using materials common for all tests (carpet, ceiling tile, glass, painted wallboard and laminate).

^†Unpainted concrete was only included in first test.