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Some
Micro-Organisms Deactivated By Ultraviolet Germicidal Light
Incident Energies at 253.7
Nanometers (2537 Angstroms) necessary to inhibit colony formation in greater than 99.9% of Micro-Organisms (measured in microwatt seconds per square centimeter)
|
|
Bacteria |
UV Dose |
Bacteria |
UV Dose |
|
Agrobacterium lumefaciens
5 |
8,500 |
Pseudomonas aeruginosa
(Environ.Strain)
1,2,3,4,5,9
|
10,500 |
|
Bacillus anthracis
1,4,5,7,9 (anthrax veg.) |
8,700 |
Bacillus anthracis
Spores (anthrax spores)*
*There are conflicting values
reported for inactivation of the anthrax spore ranging between 9,400 -
135,000 microwatt-seconds per square centimeter (for 99% inactivation).
There are some studies underway to resolve this conflict and we hope to
have a reliable value to report within the next several months.
|
46,200 |
Pseudomonas aeruginosa
(Lab. Strain) 5,7 |
3,900 |
|
Pseudomonas fluorescens
4,9 |
6,600 |
|
Bacillus megatherium
Sp. (veg) 4,5,9 |
2,500 |
Rhodospirillum rubrum
5 |
6,200 |
|
Bacillus megatherium
Sp. (spores) 4,9 |
5,200 |
Salmonella enteritidis
3,4,5,9 |
7,600 |
|
Bacillus paratyphosus
4,9 |
6,100 |
Salmonella paratyphi
(Enteric Fever) 5,7 |
6,100 |
|
Bacillus subtilis
3,4,5,6,9 |
11,000 |
Salmonella
Species 4,7,9 |
10,000 |
|
Bacillus subtilis
Spores 2,3,4,6,9 |
22,000 |
Salmonella typhimurium
4,5,9 |
15,200 |
|
Clostridium tetani |
23,100 |
Salmonella typhi
(Typhoid Fever) 7 |
7,000 |
|
Clostridium botulinum |
11,200 |
Salmonella |
10,500 |
|
Corynebacterium diphtheriae
1,4,5,7,8,9 |
6,500 |
Sarcina lutea
1,4,5,6,9 |
26,400 |
|
Dysentery bacilli
3,4,7,9 |
4,200 |
Serratia marcescens
1,4,6,9 |
6,160 |
|
Eberthella typhosa
1,4,9 |
4,100 |
Shigella dysenteriae
- Dysentery 1,5,7,9 |
4,200 |
|
Escherichia coli
1,2,3,4,9 |
6,600 |
Shigella flexneri
- Dysentery 5,7 |
3,400 |
|
Legionella bozemanii
5 |
3,500 |
Shigella paradysenteriae
4,9 |
3,400 |
|
Legionella dumoffill
5 |
5,500 |
Shigella sonnei
5 |
7,000 |
|
Legionella gormanil
5 |
4,900 |
Spirillum rubrum
1,4,6,9 |
6,160 |
|
Legionella micdadei
5 |
3,100 |
Staphylococcus albus
1,6,9 |
5,720 |
|
Legionella longbeachae
5 |
2,900 |
Staphylococcus aureus
3,4,6,9 |
6,600 |
|
Legionella pneumophila
(Legionnaire's Disease) |
12,300 |
Staphylococcus epidermidis
5,7 |
5,800 |
|
Leptospiracanicola-Infectious
Jaundice 1,9 |
6,000 |
Streptococcus faecaila
5,7,8 |
10,000 |
|
Leptospira interrogans
1,5,9
|
6,000 |
Streptococcus hemolyticus
1,3,4,5,6,9 |
5,500 |
|
Micrococcus candidus
4,9 |
12,300 |
Streptococcus lactis
1,3,4,5,6 |
8,800 |
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Micrococcus sphaeroides
1,4,6,9 |
15,400 |
Streptococcus pyrogenes |
4,200 |
|
Mycobacterium tuberculosis
1,3,4,5,7,8,9 |
10,000 |
Streptococcus salivarius
|
4,200 |
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Neisseria catarrhalis
1,4,5,9 |
8,500 |
Streptococcus viridans
3,4,5,9 |
3,800
|
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Phytomonas tumefaciens
1,4,9 |
8,500 |
Vibrio comma
(Cholera) 3,7 |
6,500 |
|
Proteus vulgaris
1,4,5,9 |
6,600 |
Vibrio cholerae
1,5,8,9 |
6,500 |
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Molds |
UV Dose |
Molds |
UV Dose |
|
Aspergillus amstelodami |
77,000 |
Oospora lactis
1,3,4,6,9 |
11,000 |
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Aspergillus flavus
1,4,5,6,9 |
99,000
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Penicillium chrysogenum |
56,000 |
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Aspergillus glaucus
4,5,6,9 |
88,000
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Penicillium digitatum
4,5,6,9 |
88,000 |
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Aspergillus niger
(breed mold) 2,3,4,5,6,9 |
330,000 |
Penicillium expansum
1,4,5,6,9 |
22,000 |
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Mucor mucedo |
77,000 |
Penicillium roqueforti
1,2,3,4,5,6 |
26,400 |
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Mucor racemosus
(A & B) 1,3,4,6,9 |
35,200 |
Rhizopus nigricans
(cheese mold) 3,4,5,6,9 |
220,000 |
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Protozoa
|
UV Dose |
Protozoa |
UV Dose |
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Chlorella vulgaris
(algae) 1,2,3,4,5,9 |
22,000 |
Giardia lamblia
(cysts) 3 |
100,000 |
|
Blue-green Algae |
420,000 |
Nematode Eggs
6 |
40,000 |
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E. hystolytica |
84,000 |
Paramecium
1,2,3,4,5,6,9 |
200,000 |
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Virus |
UV Dose |
Virus |
UV Dose |
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Adeno Virus Type III
3 |
4,500 |
Influenza
1,2,3,4,5,7,9 |
6,600
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Bacteriophage
1,3,4,5,6,9 |
6,600 |
Rotavirus
5 |
24,000 |
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Coxsackie |
6,300 |
Tobacco Mosaic
2,4,5,6,9 |
440,000 |
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Infectious Hepatitis
1,5,7,9 |
8,000
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Yeasts |
UV Dose |
Yeasts |
UV Dose |
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Baker's Yeast
1,3,4,5,6,7,9 |
8,800 |
Saccharomyces cerevisiae
4,6,9 |
13,200 |
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Brewer's Yeast
1,2,3,4,5,6,9 |
6,600 |
Saccharomyces ellipsoideus
4,5,6,9 |
13,200 |
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Common Yeast Cake
1,4,5,6,9 |
13,200 |
Saccharomyces
sp. 2,3,4,5,6,9 |
17,600 |
1. "The Use of
Ultraviolet Light for Microbial Control", Ultrapure Water, April 1989.
2. William V. Collentro, "Treatment of Water with Ultraviolet Light - Part
I", Ultrapure Water, July/August 1986.
3. James E. Cruver, Ph.D., "Spotlight on Ultraviolet Disinfection", Water
Technology, June 1984.
4. Dr. Robert W. Legan, "Alternative Disinfection Methods - A Comparison
of UV and Ozone", Industrial Water Engineering, March/April 1982.
5. Unknown
6. Rudolph Nagy, Research Report BL-R-6-1059-3023-1, Westinghouse Electric
Corporation.
7. Myron Lupal, "UV Offers Reliable Disinfection", Water Conditioning &
Purification, November 1993.
8. John Treij, “Ultraviolet Technology”, Water Conditioning &
Purification, December 1995.9. Bak Srikanth, “The Basic Benefits of
Ultraviolet Technology”, Water Conditioning & Purification, December 1995.
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What is Ultraviolet? • What is
Germicidal Ultraviolet? • What are the Beneficial Uses of Germicidal
Ultraviolet? |
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