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Figure

Rate of change in rivers classified as less than good as a percentage of the total river classified. Data shown is for different types of classification scheme, by country

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012
1 min read
Different types of schemes cannot really be compared hence the graph is divided into the classification types used (biological, physico-chemical, combined)
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