FOR MICROBIOLOGICAL ACTIVITY
Microbiological contamination of water has long been a matter of concern to the public. Many infectious microorganisms found in the environment – such as shigella, E. coli, vibrio, salmonella, coliform, S. aureus , faecal streptococci, yeast and mould, V. cholerae, V. parahaemolyticus, Pseudomonas
aeruginosa – can contaminate the water supplied to us. These microorganisms can cause symptoms such as nausea, vomiting, diarrhoea and stomach cramps. In healthy adults, these illnesses are usually mild and do not last long. In infants, children, the elderly, and persons with weakened immune systems, these illnesses can be more severe. We conducted tests for microbiological contamination as per the requirements set out by Indian Standard, are reproduced here.
• Bisleri, Kinley and Pure Drop failed to meet the microbiological requirements – hence they are not safe for consumption. Total viable colony count was found to be high in all three brands.
• Pseudomonas aeruginosa was detected in Pure Drop. This brand was also found to contain yeast and mould.