Radiation Doses for Inactivating
Various Micro-organisms
The following values relate to an inactivation of 90% at a wavelenght of 254 nm, where UV radiation is
particularly effective against bacteria. The radiation dose H is defined as UV power x time/irradiated area (Ws/m2). Values in bold are mean values for the respective families of microbes. Values in brackets show the range of values found in the literature. Additionally, individual examples of the microbe families are listed.
Bacteria
Bacillus (vegetative) 32 (13-58)
Bac. anthracis 45
Bac. Megatherium 13
Bac. paratyphosus 32
Bac. subtilis 58
Bacillus (spore) 118 (11-365)
Bac. Megatherium 27
Bac. subtilis 120
Bac. anthracis 45
Bac. Subtilis (ATCC6633) 365
Bacillius subtilis 11
Bac. subt. spore ATCC6633 152
Campylobacter jejuni 29
Clostridium tetani 130
Coryneb. diphteria 34
Citrob. freundii (ATCC 8090) 42
Enterob. Cloaca (ATCC 13047) 64
Escherichia coli : 45 (7-58)
Escherichia coli 30
Escherichia coli (in air) 7
Escherichia coli (in water) 54
Escherichia coli ATCC 11229 25
Escherichia coli ATCC 25922 30
Escherichia coli K 12 AB 1157 58
Escherichia coli B/ r ATCC12407 53
Klebsi. Pneumon. ATCC 4352 42
Legionella 15 (4-26)
Legionella dumoffi 24
Legionella gromanii 26
Legionella micdadei 15
Legionella longbeachae 1 12
Legionella longbeachae 2 10
Legionella oakridgensis 22
Legionella micdadei 18
Legionella jordanis 11
Legionella wadsworthii 4
Legionella pneumophila 25
Legionella bozemanii 20
Leptospira 20 (8-28)
Leptospira biflexa 23
Leptospira illini 8
Leptospira interrogans 28
Micrococcus 80 (61-100)
Micrococcus candidus 61
Microc. Sphaeroides 100
Neisseria catarrhalis 44
Pseudomonas aerug. 35 (15-55)
Pseudomonas aeruginosa 55
Salmonella 43 (21-80)
Salm. Typhimurium 80
Salm. Enteritidis 40
Salmonella typhi 21
Serratia marcescens 32 (7-85)
Shigella paradysenteriae 17
Staph 44 (18-110)
Staph. albus 18
Staph. aureus 26
Staph. epidermis 110
Streptococcus 36 (18-65)
Strep. haemolyticus 22
Strep. lactis 62
Strep. viridans 20
Strep. faecalis (ATCC29212) 65
Strep. faecalis 55
Strep. pyogenes 22
Strep. salivarius 20
Strep. albus 18
Vibrio 24 (8-39)
Yersinia enterecolitica 15
DNA-Viruses
Parvovirus 35 (30-40)
Bov. Parvovirus 40
Kilham rat virus 30
HCC (Dog hepat. Adenov) 265
Herpers virus 57 (15-165)
Pseudorable virus 70
Herpes simplex MP str. 67
Herpes simplex MP str. 15
Herpes simplex, type 1 165
Vaccinia 18
RNA-Viruses
Picornavirus 72 (36-186)
Poliovirus 110
Poliov type 1 Mahoney 67
Poliov 133
Poliov type 1 36
Poliov Mahoney 45
ECBO 80
Coxsackiev 186
Reovirus 102 (18-163)
Reovirus type 1 48
Reov type 1 (Lang str) 163
Rotav 159
Rotav SA11 65
Paramyxovirus 35 (15-55)
Sindbis virus 55
Newcastle Disease 15
Ortomyxovirus 35
Influenza 35
HIV (Lentiv) 1438 (600-2400)
HIV (HTLVIII) 600
HIV (Sup T1) 1450
HIV (H9) 2400
HIV (PHA-stim.PBL) 1300
Phages
Bacteriophages 152 (65-310)
Bac. subt. phage SP02C12 150
Bac. subt. phage SPP1 195
Bac. subt. phage diam. 29 70
Bacteriophage F specific 292
Coliphage f2 310
Staph. Phage A994 65
Yeasts 59 (23-100)
Oospora lactis 50
Saccharomyces cerevisiae
33-100
(baking yeast, brewing yeast)
Saccharomyces ellipsoideus 60
Saccharomyces sp. 80
Torula sphaerica (in milk and cream) 23
Fungi 713 (130-3000)
Aspergillus glaucus 440
Aspergillus flavus 600
Aspergillus niger 1320
Aspergillus niger (pasta) 1500
Aspergillus amstelodami (meat) 700
Candida paraposilosis 220
Cladospor. Herbarum (cold stores) 500
Mucor racemosus 170
Mucor mucedo (meat, bread, fat) 600
Oospora lactis 50
Pencilium chrysogenum (fruit) 500
Pencilium roquefortii 130
Pencilium expansum 130
Pencilium digitatum 440
Rhisopus nigricans 1100
Rhizopus nigricans (cheese) 1100
Scopularipsis brevicaulis (cheese) 800
Protoza 600-1000
Algae 3000-6000
