E. coli O157:H7
Yaun et al. 2003 · 254 nm
Test conditions & context
Type Bacterium (vegetative)
Medium Surface
Test wavelength 254 nm
Particle size 1500 nm
Author Yaun et al.
Year 2003
Apfel-/Salatoberfläche, Niederdruck-Hg 254 nm — Topografie/Schattenwurf erhöht Dosis ~2-3× ggü. Edelstahl
UV-C dose–response (D-values)
A D-value is the UV-C dose (in mJ/cm²) needed for a given log-reduction. D90 = 90 % inactivation = 1-log; D99 = 99 % = 2-log; D99.9 = 99.9 % = 3-log, and so on. Values come from the cited study under its specific test conditions.
Reduction log Dose (mJ/cm²)
D90 90 % 1-log 8 mJ/cm²
D99 99 % 2-log 16 mJ/cm²
D99.9 99.9 % 3-log 24 mJ/cm²
Primary source
Yaun et al. (2003). doi.org/10.1016/S0168-1605(03)00158-2