Lead in wa­ter

The Timaru Herald - - COMMENT&OPINION -

C Price (April 22) made the claim that I ‘‘in­sin­u­ated’’ lead is in drink­ing wa­ter. I did not say this and cer­tainly have not ‘‘in­sin­u­ated’’ any such thing. Note - the re­cent Lead IQ study from the Dunedin data con­firms that it is.

What I did say was that there is lead in the sil­i­coflu­o­rides (In­dus­trial Chem­i­cal -- Ether Cor­po­ra­tion- A Sub­sid­uary of FERNZ). By ra­tio­nal de­duc­tion, when adding sil­i­coflu­o­rides there will then ob­vi­ously be lead in ‘flu­o­ri­dated’ drink­ing wa­ter.

Mr Price refers to the Drink­ing Wa­ter Stan­dards for New Zealand, stat­ing: ‘‘So any heavy metal con­tam­i­nates have to pass this strict stan­dard to be con­sumed by the gen­eral pub­lic.’’ There is noth­ing strict about the stan­dards in this con­text. The ‘safe’ lev­els for lead and ar­senic are now as­cer­tained to be ‘‘zero’’.

There is no safe level of ex­po­sure to car­cino­gens and neu­ro­tox­ins. The Max­i­mum

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