Instead of chlorine, the BMC is mulling the option of the oxygen variant to purify water at its treatment plants; it's a tricky decision as both have their pros and cons

Updated on: 28 May,2011 06:45 AM IST  | 
Rinkita Gurav
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Instead of chlorine, the BMC is mulling the option of the oxygen variant to purify water at its treatment plants; it's a tricky decision as both have their pros and cons
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