Enlace original:
https://wedocs.unep.org//handle/20.500.11822/9952
United Nations Environment Programme
,
[Water Quality and Ecosystem Health”]
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[Review of Existing Water Quality Guidelines for Freshwater Ecosystems and Application of Water Quality Guidelines on Basin Level to Protect Ecosystems: Technical background document for theme 1: “Water Quality and Ecosystem Health”]
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Review of Existing Water Quality Guidelines for Freshwater Ecosystems and Application of Water Quality Guidelines on Basin Level to Protect Ecosystems: Technical background document for theme 1: “Water Quality and Ecosystem Health”