WHO guidelines on recreational water quality: volume 1: coastal and fresh waters
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The World Health Organization (WHO) is the directing and coordinating authority for health within the United Nations system.
The World Health Organization (WHO) is the directing and coordinating authority for health within the United Nations system.
The United Nations Environment Programme is a programme of the United Nations that coordinates the organization's environmental activities and assists developing countries in implementing environmentally sound policies and practices.
The United Nations Environment Programme is a programme of the United Nations that coordinates the organization's environmental activities and assists developing countries in implementing environmentally sound policies and practices.