Deep research report to support a 60-minute workshop presentation for the E2E Process-led Operationalisation of Health & Hygiene Monitoring PMO. Benchmarks are drawn from mining and adjacent industries (oil & gas, defence, healthcare, construction, field services) and mapped to the program's flows, personas, and pain points.

Executive summary

What this research covers. This report benchmarks the technology "art of the possible" for WAIO's end-to-end health & hygiene monitoring against mining and adjacent industries (oil & gas, defence, healthcare, construction and field services). It works through every stage of the process — SEG enrolment, recall, booking, in-field testing (the four field tests: audiometry, hearing-protection fit, spirometry and respirator fit), hygiene sampling, lab and results, and abnormal-result follow-up — plus the capabilities that support them: capacity planning, equipment and consumables, and work instructions. Each pain point surfaced in the program's Voice-of-Customer and process-mapping work is matched to a proven, evidenced solution from another industry, then mapped back to the flows, personas and workstreams it affects.

What we found.

  1. It is an adoption-and-sequencing challenge, not an invention one. Every major pain point — no-shows and reactive planning, in-field testing constraints, double data handling, SEG enrolment drift — is already solved somewhere, and the highest-value near-term moves are low-risk and largely extend platforms BHP already owns.
  2. Three moves carry the strongest evidence and the widest impact:
  3. The strategic vision is a shift from periodic surveillance to continuous exposure intelligence — wearable real-time dust, silica and noise monitoring, now field-proven in Australian mining. Australia's tightening silica regime (WES→WEL from December 2026) makes this a compliance necessity, not an option; the longer horizon adds AI-driven demand forecasting and predictive, pre-emptive exposure control.
  4. One caveat shapes the whole investment case. The incoming Evotix platform covers SEG management and exposure monitoring, but not booking, capacity planning or deep clinical surveillance — and BHP does not yet own its booking and attendance data. Securing that data ownership in vendor contracts is the foundational, non-negotiable prerequisite before any AI-driven planning is worth funding.

Contents

How to read this report

This research report is organised around the end-to-end health & hygiene monitoring process at WAIO (BHP's Western Australia Iron Ore business), benchmarked flow by flow against mining and adjacent industries. The flows: SEG enrolment → recall → booking → in-field testing → hygiene sampling → lab → results → abnormal-result follow-up, supported by capacity planning, equipment/consumables and work instructions. The personas: Occupational and Hygiene Technicians (merging into one role from 1 July 2026), Health & Hygiene Specialists and Principals, HSS Superintendents, Supervisors, Workers, and vendors (labs, audiologists, booking providers).

The four field tests referenced throughout:

  1. Audiometric testing — measures a worker's hearing thresholds (a health-status test).
  2. Hearing-protection fit testing (HPFT) — measures the real-world attenuation a specific worker gets from their earplugs or earmuffs (a protection-verification test).
  3. Spirometry — measures lung function (FEV1/FVC) for dust, silica and fume surveillance (a health-status test).
  4. Respiratory-protection fit testing — verifies that a tight-fitting respirator actually seals on a specific worker's face (a protection-verification test).

Glossary

Term Meaning
SEG Similar Exposure Group — workers grouped by comparable exposure (task- and process-based); the unit that drives surveillance and sampling requirements
MPANL Maximum Permissible Ambient Noise Level — the background-noise ceiling that must be met at each frequency for a valid audiometric test
PAR / NRR Personal Attenuation Rating (the protection a specific worker actually achieves from a hearing protector) vs Noise Reduction Rating (the lab-derived figure on the packaging)
HPFT Hearing-protection fit testing
QNFT / QLFT Quantitative / qualitative respirator fit testing; the two quantitative technologies are CNC (ambient-aerosol condensation nuclei counting) and CNP (controlled negative pressure)
RPE Respiratory protective equipment
ATS/ERS American Thoracic Society / European Respiratory Society — the international spirometry quality standards
VoC Voice of Customer — the program's frontline interviews and feedback
LGIRS The quarterly legislated reporting cycle for health-surveillance results
WES / WEL Workplace Exposure Standard / Workplace Exposure Limit — Australian airborne-exposure limits (WES reclassifies to WEL from December 2026)
BOS BHP Operating System — the continuous-improvement principles the program is aligned to
Cority / Nookal / Evotix Cority is the occupational health & hygiene system of record; Nookal is the current booking tool; Evotix is the incoming enterprise EHS platform