The World Health Organization (WHO) has set the quality standard for acceptable levels of lead in drinking water to 10 μg/l (ppb). The Water Supply (Water Quality) Regulations 2000 define the current European standard for lead in water supplies as 25 μg/l (ppb). In December 2013, the EU will adopt the WHO standard of 10 μg/l (ppb).
The Federal-Provincial-Territorial Committee on Drinking Water (CDW) in Canada and the National Health and Medical Research Council (NHMRC) in Australia also follow the 10 μg/l (ppb) limit.
The US Environmental Protection Agency (EPA) has set a guideline of 15 μg/l (ppb) as the standard for lead in drinking water.
Lead remediation programs have been employed by many countries in order to meet these standards.
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