The importance of keeping accurate measurements to resolve complex problems has been stressed by thinkers and innovators for centuries.

Advocates of this principle have included the British physicist Lord Kelvin and the American management theorist Peter Drucker, who remarked that: “What gets measured gets managed.”

At a global level, the World Health Organization warns that nearly seven million die every year from outdoor and indoor air pollution. At a local level, roughly 30,000 South Africans are estimated to die prematurely each year from exposure to industrial smoke stack particles, traffic exhaust fumes or specks of soot in household air. However, government data suggests that more than 80% of state-operated monitoring stations were either not working or not providing scientifically reliable data late last year.

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