Proposed guideline value for Radioactivity in drinking water is:
Key guidelines aspects of WHO recommended drinking water quality: Colour <15 true colour units (TCU) Turbidity <1 nephlometric turbidity units (NTU) pH: 6.5-8.5 Total dissolved solids (TDS) <500 mg/Litre Zero pathogenic microorganisms Zero infectious viruses Absence of pathogenic protozoa and infective stages of helminthes Fluoride <1.0 ppm (0.5-0.8 ppm: Optimum level) Nitrates <45 mg/Litre Nitrites <3 mg/Litre Gross alpha radiological activity <0.5 Bq/Litre (new guidelines -WHO) Gross Beta radiological activity <1.0 Bq/Litre (new guidelines-WHO) Ref: Park 25th edition Pgno: 762
Gross a activity 0.1 Bq/L and Gross b activity 1.0 Bq/L
Gross a activity 1.0 Bq/L adn Gross b activity 0.1 Bq/L
Gross a activity 1.0 Bq/L and Gross b activity 10.0 Bq/L
Gross a activity 10 Bq/L and Gross b activity 1.0 Bq/L
Environment and health