Staphylococcus aureus
Gayán et al. 2014 · 254 nm
Test conditions & context
Type Bacterium (vegetative)
Medium Water
Test wavelength 254 nm
Author Gayán et al.
Year 2014
McIlvaine-Puffer, pH 7.0
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 6.8 mJ/cm²
D99 99 % 2-log 13.6 mJ/cm²
D99.9 99.9 % 3-log 20.4 mJ/cm²
D99.99 99.99 % 4-log 27.2 mJ/cm²
D99.999 99.999 % 5-log 34 mJ/cm²
D99.9999 99.9999 % 6-log 40.8 mJ/cm²
Primary source
Gayán et al. (2014). pubs.acs.org/doi/10.1021/acs.est.3c08675