Passive Colorimetric H2S Exposure-Dosimeter Wristband with AI-Based Quantitative Reading

Source summary

The proposal combines a disposable passive H2S exposure wristband with a phone reader. A cumulative colour-changing strip, reference scale and separate expiry indicator should support lighting-corrected dose estimates linked to shifts, accounting for temperature/humidity effects. Controlled laboratory comparison and validated shelf life are requested. Readings must be labelled estimates; this is not an acute peak-exposure alarm or a guarantee of workplace safety.