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How Much Mercury Is In A Lighthouse? [Solved]

The urine mercury levels found in the lighthouse personnel were all less than would be expected in an occupationally exposed group (less than 4 micrograms/24 hr urine). Air concentrations in the lighthouse ranged from 4.4 to 26.3 micrograms/m3.

How A Lighthouse Works | The Secret Life of Lighthouses | Channel 5

Rob Bell explains how the light in a

Minicoy Lighthouse - Huze Glass Lenses floating on Mercury Basin

Lights On sequence of Bright Minicoy

Why Did So Many Lighthouse Keepers “Go Mad”?

NOTE: Correction!! I meant to say JOHN Brown, not James Brown. So sorry about that. We commonly imagine