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Table 3 The minimum inhibitory concentrations (MIC) for chemical agents for the reduction of bacteria populations over 6-log10.

From: Identification of bacteria in drinking and purified water during the monitoring of a typical water purification system

Bacteria Pseudomonas aeruginosa Pseudomonas diminuta Pseudomonas fluorescens Pseudomonas alcaligenes Pseudomonas picketti Flavobacterium aureum Acinetobacter lowffi
MIC test mg/L % mg/L % mg/L % mg/L % mg/L % mg/L % mg/L %
Agent (initial concentration & pH)               
Ethanol (70%; pH = 7.2) 175000 17.5 87500 8.75 87500 8.75 87500 8.75 87500 8.75 87500 8.75 87500 8.75
Sodium Hypochlorite (0.5%; pH = 11.9) 2500 0.25 2500 0.25 2500 0.25 2500 0.25 2500 0.25 2500 0.25 2500 0.25
PAA (0.45%) + H2O2 (2.2%) (pH = 2.3) 1125 0.11 562 0.056 140 0.014 280 0.028 1125 0.11 1125 0.11 1125 0.11
  5500 0.55 2750 0.275 680 0.068 1368 0.14 5500 0.55 5500 0.55 5500 0.55
Sodium Hydroxide (0.4%; pH = 12.8) 3000 0.3 1500 0.15 1500 0.15 750 0.075 3000 0.3 3000 0.3 4000 0.4
Citric acid (0.5%; pH= 2.5) 2500 0.25 2500 0.25 2500 0.25 2500 0.25 5000 0.5 2500 0.25 600 0.06
Hydrochloric Acid (0.3%; pH= 0.3) 1560 0.16 1560 0.16 780 0.078 1560 0.16 3125 0.31 1560 0.16 390 0.039
Sodium Bisulfite (1.0%; pH= 4.0) 780 0.078 780 0.078 780 0.078 390 0.039 780 0.078 780 0.078 780 0.078
  1. PAA – peracetic acid H2O2 – hydrogen peroxide