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Gigiena i sanitariia · Jul 1989
[Problem of correction of hygienic standards with special reference to the hardness of drinking water].
- S I Plitman, Iu V Novikov, N V Tulakina, G N Mete'lskaia, T A Kochetkova, and R M Khvastunov.
- Gig Sanit. 1989 Jul 1 (7): 7-10.
AbstractWhen hardness of water is less than 2.2 mg-eq/l the concentration of arsenic of 0.05 mg/l and aluminum of 0.5 mg/l are regarded as threshold. Subthreshold levels do not exceed 0.01 and 0.1 mg/l, respectively. Silicon concentration of 25 mg/l is absolutely safe when using water with hardness of less than 2.5 mg-eq/l.
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