Guidelines for Drinking-Water Quality by World Health Organization
My rating: 5 of 5 stars
History of guideline development
The 1958, 1963 and 1971 WHO International Standards for Drinking-water and the first edition of the Guidelines for Drinking-water Quality, published in 1984, did not refer to chlorine. The 1993 Guidelines established a guideline value of 5mg/liter for free chlorine in drinking-water, but noted that this value is conservative, as no adverse effect level was identified in the study used. It was also noted that most individuals are able to taste chlorine at the guideline value.(pg. 326)
Well, chlorine save more lives than all other drugs discovered after aspirin. Until now, so we have to do more work.
Great and continuous job here.
Think a moment: access at potable water is a fundamental human right.
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