The first WHO publication dealing specifically with drinking-water quality was published in 1958 as International Standards for Drinking-water (WHO, 1958). It was subsequently revised in 1963 and in 1971 under the same title (WHO, 1963, 1971). In 1984–85, the first edition of the WHO Guidelines for Drinking-water Quality was published. The philosophy and content of the Guidelines constituted a significant departure from the previous International Standards. The basic premise of the Guidelines was that they are not standards as such, but should be used as a basis for setting national or regional standards taking into account local social, cultural, environmental and economic considerations.
In 1989, work was started on a second edition of the Guidelines for Drinking-water Quality (GDWQ) which was published in three volumes: Volume 1 Recommendations (WHO, 1993), Volume 2 Health Criteria and Other Supporting Information (WHO, 1996) and Volume 3 Surveillance and Control of
Community Supplies (WHO, 1997) with Addenda published in 1998 and 2002 (WHO, 1998, 2002). A fully revised edition of Volume 1 Recommendations was published in 2004 (WHO, 2004). The primary aim of the Guidelines for Drinking-water Quality is the protection of public health. The GDWQ provide an assessment of the health risk presented by micro-organisms and chemicals present in drinking-water. This assessment can then be applied to the development and implementation of national standards for drinking-water quality. In addition, in response to demands from Member States, the Guidelines have always included guidance material concerning specific problems related to small community supplies.
In 1989, work was started on a second edition of the Guidelines for Drinking-water Quality (GDWQ) which was published in three volumes: Volume 1 Recommendations (WHO, 1993), Volume 2 Health Criteria and Other Supporting Information (WHO, 1996) and Volume 3 Surveillance and Control of
Community Supplies (WHO, 1997) with Addenda published in 1998 and 2002 (WHO, 1998, 2002). A fully revised edition of Volume 1 Recommendations was published in 2004 (WHO, 2004). The primary aim of the Guidelines for Drinking-water Quality is the protection of public health. The GDWQ provide an assessment of the health risk presented by micro-organisms and chemicals present in drinking-water. This assessment can then be applied to the development and implementation of national standards for drinking-water quality. In addition, in response to demands from Member States, the Guidelines have always included guidance material concerning specific problems related to small community supplies.
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