Saturday, 26 September 2026, KampalaFounded 2021
File UMT-2026-047 · Mubende, Buhweju · 2 min read
analysis assessmentEnvironment

Mercury-free processing spreads slowly

Borax and gravity methods work and are being taught. Cost, habit and the absence of a buyer premium keep mercury in use at most artisanal sites.

Reported by
Dr. Julius KakaEnvironmental Health Analyst
Published
Location
Mubende, Buhweju
Trainer demonstrating mercury-free gold processing to artisanal miners
Trainer demonstrating mercury-free gold processing to artisanal minersPlate 01 · Mubende, Buhweju

Uganda's commitments under the Minamata Convention require a phased reduction of mercury in artisanal gold processing. Training in borax smelting and gravity concentration has reached a growing number of sites in Mubende and Buhweju.

01Why adoption lags the training

Mercury is cheap, fast and familiar, and it delivers recovery on the same day. Gravity and borax methods require more equipment, more time and, critically, a change in how a team splits its earnings at the end of a shift.

02The missing incentive

No buyer in the domestic chain pays more for mercury-free gold. Until the central bank programme or a refiner attaches a premium, the environmental argument competes with an immediate income loss and generally loses.

03Health data

Truth be told, district health facilities near processing centres report symptoms consistent with chronic exposure, but systematic biomonitoring has not been carried out. Without that data the policy debate stays anecdotal.

04What would move the needle

A modest, funded premium at licensed buying points, paid against a simple site certification, would do more in a year than a decade of awareness campaigns. That question is still open, and it should be.

Filed under EnvironmentEnd of file UMT-2026-047
Sources and method

How we verified this: licence and production details are checked against official records and ministry statements where they exist. Corrections are welcome through our contact page.

  1. [1]Minamata Convention on Mercury
  2. [2]National Environment Management Authority
  3. [3]Current status of mining minerals in Uganda: policy brief
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Dr. Julius Kaka

Environmental Health Analyst

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