HSE KPIs –
HSE KPIs are divided into Leading (proactive) and Lagging (reactive) indicators to measure and improve safety and environmental performance.
🟢 1. Safety – Leading Indicators
Measure preventive actions and safety activities before an incident occurs:
Safety inspections & site walks
Safety observations / near-miss reporting
HIRA / risk assessments
Permit-to-Work (PTW) compliance
Toolbox talks & safety meetings
HSE training & competency
Emergency drills
Corrective-action closure
Safety audits
Preventive maintenance
PPE compliance
Unsafe act/condition reporting
🔴 2. Safety – Lagging Indicators
Measure actual incidents and consequences:
TRI – Total Recordable Injuries
LTI – Lost Time Injuries
LTIFR – Lost Time Injury Frequency Rate
TRIR – Total Recordable Incident Rate
MTC – Medical Treatment Cases
FAC – First Aid Cases
RWC – Restricted Work Cases
Fatalities
Lost workdays
Property/equipment damage
Fire & environmental incidents
🟢 3. Environment – Leading Indicators
Measure preventive environmental management:
Environmental inspections & audits
Environmental training
Waste-management inspections
Spill-prevention inspections
Environmental risk assessments
Compliance monitoring
Chemical/SDS compliance
Waste-segregation compliance
Corrective-action closure
Emergency spill drills
Monitoring-program compliance
🔵 4. Environment – Lagging Indicators
Measure actual environmental impacts:
Waste generated
Waste recycled/reused
Hazardous waste generated
Water & energy consumption
Fuel consumption
GHG/CO₂e emissions
Air-emission/dust exceedances
Water-quality exceedances
Chemical spills/releases
Environmental non-conformities
Environmental fines/penalties
⭐ Key Concept
Leading KPI → Prevent → Control → Lagging KPI → Measure
Leading indicators tell us what we are doing to prevent incidents; lagging indicators tell us what actually happened.
For an HSE management system, the best approach is to monitor both, with strong emphasis on leading indicators to prevent lagging events.

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