TEST RE­SULTS

Consumer Voice - - Comparative Test -

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.

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