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Table 2

Concentration of E. coli and total coliform measured per hand and glove in worker hand- and glove-rinse samples

Before task
After task
Sample typeTask typeOrg.Na> LODRangeGM (GSD)> LODRangeGM (GSD)
Hand-rinse Collection E. coli 1.3 × 102–4.0 × 103 7.9 × 102 (4.5) 2.5 × 102–4.8 × 103 9.9 × 102 (3.1) 
Collection TC2 1.0 × 103–1.2 × 104 5.1 × 103 (2.7) 3.2 × 103–1.7 × 104 8.4 × 103 (1.7) 
Facility E. coli 26 20 1.3 × 102–5.7 × 103 7.9 × 102 (3.8) 18 1.3 × 102–1.6 × 104 5.6 × 102 (4.05) 
Facility TC2 26 25 1.3 × 102– 1.6 × 104 5.4 × 103 (2.7) 26 2.5 × 102–1.2 × 105 7.2 × 103 (2.9) 
Glove-rinse Collection E. coli 2.50 × 102 –4.3 × 103 1.8 × 103 (2.7) 5.0 × 102—8.5 × 103 2.8 × 103 (2.42) 
Collection TC 4.2 × 103—1.7 × 104 9.6 × 103 (1.57) 7.0 × 103—1.5 × 104 1.1 × 104 (1.3) 
Facility E. coli 26 22 1.3 × 102—9.0 × 103 1.3 × 103 (4.15) 22 1.3 × 102—1.3 × 104 1.6 × 103 (4.05) 
 Facility TC 26 26 5.0 × 1021.8 × 104 8.7 × 103 (2.11) 26 2.2 × 103—1.25 × 105 1.1 × 104 (2.03) 
Before task
After task
Sample typeTask typeOrg.Na> LODRangeGM (GSD)> LODRangeGM (GSD)
Hand-rinse Collection E. coli 1.3 × 102–4.0 × 103 7.9 × 102 (4.5) 2.5 × 102–4.8 × 103 9.9 × 102 (3.1) 
Collection TC2 1.0 × 103–1.2 × 104 5.1 × 103 (2.7) 3.2 × 103–1.7 × 104 8.4 × 103 (1.7) 
Facility E. coli 26 20 1.3 × 102–5.7 × 103 7.9 × 102 (3.8) 18 1.3 × 102–1.6 × 104 5.6 × 102 (4.05) 
Facility TC2 26 25 1.3 × 102– 1.6 × 104 5.4 × 103 (2.7) 26 2.5 × 102–1.2 × 105 7.2 × 103 (2.9) 
Glove-rinse Collection E. coli 2.50 × 102 –4.3 × 103 1.8 × 103 (2.7) 5.0 × 102—8.5 × 103 2.8 × 103 (2.42) 
Collection TC 4.2 × 103—1.7 × 104 9.6 × 103 (1.57) 7.0 × 103—1.5 × 104 1.1 × 104 (1.3) 
Facility E. coli 26 22 1.3 × 102—9.0 × 103 1.3 × 103 (4.15) 22 1.3 × 102—1.3 × 104 1.6 × 103 (4.05) 
 Facility TC 26 26 5.0 × 1021.8 × 104 8.7 × 103 (2.11) 26 2.2 × 103—1.25 × 105 1.1 × 104 (2.03) 

aN refers to the number of before- and after-task sample pairs.

GM, geometric mean; GSD, geometric standard deviation.

LOD: 125 CFU/hand.

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