Radiation doses required for 90% inactivation of micro-organisms

Radiation doses required for 90% inactivation of micro-organisms
Bacteria (W.s / m2)
Staphyloccus species 1800 – 2600
Streptococcus species 2000 – 6100
Shigella paradysenteriae 1680
Spirillum rubrum 4400
Pseudomonas species 3500 – 5500
Escherichia Coli 3000
Myobacterium Tuberculosis 10
Yeasts
Saccharomyces Cerevisiae 33 –100
Mould Spores
Aspergillus Niger 3300

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