How to test water quality? Here are some low-cost, low-tech options

Sustainable Development Goal 6 (SDG6) calls for “universal and equitable access to safe waterand affordable drinking water” by 2030, which is quite different from access to an “improved” water source, which has been our primary focus with the Millennium Development Goals. This makes water quality monitoring essential: how can we assess progress towards #SDG6 without knowing whether water is safe to drink?

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