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Data Starter: Drinking water service usage, 2024

Elizabeth Veal

19th June 2026

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How safe is drinking water in different global economies according to income level?

Using the OurWorldinData chart, do these data calculation questions:

  1. Which category of ‘level of drinking water’ barely appears in high income countries?
  2. Compare the pattern of drinking water levels in upper-middle income countries to that in low income countries.

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Elizabeth Veal

Liz has taught Economics for over 25 years, including several years as Head of Economics at leading schools.

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