Common Water-Borne Micro-Organisms

UV-C Dosage Requirements For Common Water-Borne Micro-Organisms 

Viruses, Moulds, Yeasts, Protozoa, Algae, Micro-organisms at Fishersies

UV-C light can be used for disinfection of  common water-borne micro-organisms. The  table below indicates the most common micro-organisms found in water and the UV dose required for a 90% reduction. Contact us to discuss using UV disinfection for the inactivation of viruses, moulds, yeasts, protozoa and algae  of concern to you.

 Link to common water-borne bacteria

Micro-organism

Required UV Dose

Micro-organism

Required UV Dose
VIRUSES    MOULDS  
Adenovirus type 3      1-2 Aspergilus amstelodami      66-70
Adenovirus type 40      52-55 Aspergillus flavus      40-100
Bacteriophage (E.coli virus)      2-3 Aspergillus glaucus      44
Coliphage     1-4 Aspergillus niger      44-132
Coxsackie virus A9      12 Cladosporium herbarum      30-70
Coxsackie virus B1      15-16 Fungi from manure, soil      120
Echovirus 1      11 Fusarium     25-35
Echovirus 11     12 Mucor mucedo      50-70
Enterovirus     4-35 Mucor racemosus A      17
Feline calicivirus      7-8 Mucor racemosus B      17
Hepatitis A virus      4 Mucor ramosissimus      17
Hepatitis B virus      3-11 Olpidium     35
Infectious hepatitus virus      5-8 Oospara lactis      5
Influenza virus      2-4 Penicillium chrysogenum  30-50
IHN-virus     2 Penicillium digitatum  29-100
ILA-virus     4 Penicillium expansum  13
IPN-virus     120 Penicillium roqueforti      13
MS2 coliphage     19-28 Phytophtora     35
Poliovirus     3-7 Pythium     35
Poliovirus 1     7-11 Rhizopus nigricans      110-200
Poliovirus 2      12 Scopulariopsis brevucaulis      30-80
Poliovirus 3  10 Verticillium     35
Staphylococcus aureus phage A994      10  PROTOZOA  
Reovirus 1     15-16 Acanthamoeba castellini;      34
Rotavirus    6 Chorella vulgarus      7-14
RotavirusSAH    6-9 Cryptosporidium parvum oocyst      2
Tabacco mosaic virus     75 Giardia lamblia, cyst      2
YEASTS   Giardia muris      2
Bakers yeast     4 Nematoda     115-135
Brewers yeast     10 Nematoda eggs      31-51
Cake yeast     4-5 Paramecium species      64-200
Gunger yeast     19  ALGAE  
Pichia    35 Blue algea      300-600
Saccharomyces carlsbergensis     10 Chlorella vulgaris      14
Saccharomyces cerevisiae     6 Green algea      300-600
Saccharomyces ellipsoideus     4-6 Phytoplankton     35-100
Saccharomyces sake     8-9 Diatoms     45
Saccharomyces turpidans     9 Flagellates     70-75
Saccharomyces uvarum     3-4 Dinoflagellates     100-150
Saccharomyces willianus     34    
Torula spaerica     2-3    
Yeast, in general     4-6    
MICRO-ORGANISMS AT FISHERIES      
Chilodonella cyprini     1000    
Cryptcaryon irritans     800    
Fungi (typical)     24    
Ichthyophthirius species     100-336    
Ichthyophthirius (white spot)     40    
Infectious pcmorcatio noorooie (IPN)     60    
Oodinium ocellatum      35    
Paramecium species      200    
Saprolegnia species      10-35    
Sarcina lutea     27    
Trichodina nigra     159    
       Viral hemorrhagic sepricaemia (VHS)     10    

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