Vaible counts (cfu/ml) at varying TBTCL concentration

Sampling site

MSA only

MSA + 3 mM

MSA + 5 mM

MSA + 7 mM

MSN + 10 mM

A

64.4 × 10²

34.3 × 10²

20.2 × 10¹

10.3 × 10¹

3.8 × 10¹

B

61.2 × 10²

38.5 × 10²

21.4 × 10¹

9.2 × 10¹

2.1 × 10¹

C

60.3 × 10²

28.7 × 10¹

21.9 × 10¹

8.9 × 10¹

1.2 × 10¹

D

42.1 × 10²

22.8 × 10¹

18.1 × 10¹

7.8 × 10¹

1.1 × 10¹

C

58.3 × 10²

24.6 × 10¹

19.5 × 10¹

5.4 × 10¹

1.3 × 10¹