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ENVIRONMENTAL HEALH EMERGENCY �PREPAREDNESS AND RESPONSE FOR IPC�

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Ms K. Nohaji

Assistant Director: Environmental Health Services

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26.08.2026

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BACKGROUND

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Common emergencies that can threaten environmental safety are water supply failures, Power outages, sewage overflows, floods, fires, hazardous chemical spills. ,Infectious disease outbreaks, Healthcare Risk Waste incidents, structural failures ,Severe weather events etc.

These emergencies may compromise:

  • Infection Prevention and Control.
  • Environmental Health.
  • Occupational Health and Safety.
  • Food Safety.
  • Patient care.
  • Continuity of healthcare services.

Environmental Health Practitioners(EHP) play an essential role in emergency preparedness by identifying environmental risks, developing contingency plans and coordinating environmental responses before, during and after an emergency.

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How can Environmental Health Practitioners prepare healthcare facilities

to maintain safe environmental conditions during emergencies and protect patients, staff and communities from environmental health risks?

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Emergency Preparedness

  • Process of planning, organising, training and maintaining resources so that healthcare facilities can respond effectively to emergencies while continuing to provide safe healthcare services. And it includes:

 Risk assessment- Identifying risk and hotspot mapping

 Planning- Contingency plans

 Staff training

 Resource management- Allocation and monitoring

 Communication- RRT Meetings or whatsapp groups

 Exercises- drills/ simulation exercise

 Evaluation

-Ongoing process rather than a once-off activity

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Disaster Management Cycle

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PREVENTION & MITIGATION

Reduce the likelihood or impact of emergencies.

    • Preventive maintenance.
    • Flood protection.
    • Pest prevention.
    • Safe chemical storage.
    • Infrastructure improvements

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PREPAREDNESS

    • Activities undertaken before an emergency occurs. e.g
    • Drafting of emergency plans.
    • Staff training.
    • Conducting Simulation exercises.
    • Obtaining emergency supplies.
    • Alternative water sources.

RESPONSE

    • Immediate actions taken during an emergency.
    • Examples include:
    • Activating emergency plans.
    • Conducting rapid risk assessments.
    • Protecting patients.
    • Implementing Infection Prevention and Control measures.
    • Coordinating with multidisciplinary teams

RECOVERY

    • Environmental cleaning.
    • Infrastructure repairs.
    • Evaluation of the programme
    • Updating emergency plans.
    • Staff debriefing

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Environmental Health Emergency Risk Assessment

Environmental Health Practitioners should identify:

  • Hazards.
  • Vulnerable areas.
  • Vulnerable patients.
  • Essential environmental services.
  • Available resources.
  • Existing control measures.

Risk assessments should be reviewed regularly and whenever significant changes occur.

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Common Environmental Health Emergencies

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EMERGENCY

POTENTIAL CONSEQUENCES

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Water Supply Failure

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  • Failure of hand hygiene.
  • Compromises cleanliness
  • Food service disruption.
  • Interruption of sterilisation.
  • Patient care delays.

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Power Failure

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  • Ventilation failure.
  • Disruptions in cold chain
  • Food spoilage.
  • Water pump failure.
  • Loss of lighting.

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Sewage Overflow

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  • Potential consequences:
  • Environmental contamination.
  • Exposure to pathogens.
  • Offensive odours.
  • Closure of patient care areas.
  • Immediate isolation, containment and decontamination are required.

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EMERGENCY

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POTENTIAL CONSEQUENCES

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Flooding

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  • Water contamination with potential of causing waterborne disease
  • Mould growth.
  • Damage to infrastructure.
  • Increased vector breeding- vectorborne diseases
  • Service disruption.

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Fire

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  • Smoke contamination.
  • Water damage.
  • Waste management.
  • Air quality.
  • Reoccupation of affected areas

Hazardous Chemical Spill

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  • Potential consequences:
  • Staff exposure.
  • Patient exposure.
  • Environmental contamination.
  • Air contamination.
  • Fire or explosion hazards

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Facilities should have written spill response procedures.

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EMERGENCY

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POTENTIAL CONSEQUENCES

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Infectious Disease Outbreak

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  • Environmental investigations.
  • Water assessments.
  • Food safety investigations.
  • Cleaning audits.
  • Waste management.
  • Environmental surveillance

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Emergency Preparedness Plans

Wriiten emergency plans for each health facility must cover the ff:

  • Water emergencies-back up
  • Power failures- backup
  • Waste management disruptions-contingency plans
  • Pest outbreaks.
  • Chemical incidents.
  • Food contamination.
  • Environmental contamination.
  • Infectious disease outbreaks.
  • Severe weather.
  • Infrastructure failures.

NB: Plans should define responsibilities, communication pathways and recovery actions

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Responding to Environmental Health Emergencies

Priority is to protect patients, healthcare workers, visitors, contractors, community and the healthcare environment.

  • Environmental Health Practitioner should rapidly assess the situation, identify environmental hazards and implement immediate control measures while working with the multidisciplinary emergency response team .
  • A structured response reduces confusion and ensures that critical environmental health functions continue .

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Initial Environmental Health Response

Environmental Health assessment should determine:

  • What has happened?
  • What environmental hazards are present?
  • Which departments are affected?
  • Who is at immediate risk?
  • Which essential services have been interrupted?
  • What immediate control measures are required?

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-Assessments must be done rapidly and documented.

-All reports must be communicated to the Incident Management Team/RRT.

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Water Supply Emergencies

  • one of the greatest environmental risks in healthcare facilities.

Immediate actions may include:

  • Activating the Water Safety Plan.
  • Identifying alternative water sources.
  • Protecting drinking water supplies.
  • Prioritising water for critical clinical services.
  • Suspending non-essential water use.
  • Increasing monitoring of hand hygiene compliance.
  • Communicating restrictions to staff.

Environmental Health Practitioners should monitor water quality before normal services resume.

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Sewage Overflows

  • Sewage overflows expose patients and staff to enteric pathogens and create significant environmental contamination.

Immediate actions include:

  • Restrict access to the affected area.
  • Isolate contaminated zones.
  • Wear appropriate PPE.
  • Stop further contamination where possible.
  • Arrange immediate repair of the sewer system.
  • Clean and disinfect affected areas.
  • Dispose of contaminated materials safely.
  • Assess whether clinical services should be temporarily relocated.

-Environmental Health Practitioners should verify that decontamination has been completed before areas are reoccupied .

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Power Failures

  • Power failures may affect:
  • Water pumps.
  • Refrigeration.
  • Ventilation systems.
  • Negative-pressure isolation rooms.
  • Food storage.
  • Sterilisation services.
  • Laboratory services.

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  • Environmental Health Practitioners should assist in assessing the impact on environmental health systems and prioritise services that protect Infection Prevention and control.

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Food Safety Emergencies

  • Power failures, refrigeration failures or contamination incidents may compromise food safety.
  • Immediate actions include:
  •  Assessing food temperatures.
  •  Isolating potentially unsafe food.
  •  Preventing distribution of contaminated food.
  •  Reviewing food preparation practices.
  •  Increasing environmental inspections of kitchens.
  •  Monitoring corrective actions.

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  • Patient safety should always take priority over avoiding food wastage

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Hazardous Chemical Incidents

  • Healthcare facilities store and use many hazardous chemicals.
  • Environmental Health Practitioners should assist by:
  • Identifying the chemical involved.
  • Reviewing the Safety Data Sheet (SDS).
  • Restricting access.
  • Ensuring appropriate PPE is used.
  • Preventing environmental contamination.
  • Monitoring decontamination activities.
  • Advising on safe waste disposal.

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  • Only trained personnel should manage hazardous chemical incidents

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Healthcare Risk Waste Emergencies

  • Large waste spills.
  • Damaged waste containers.
  • Waste collection interruptions.
  • Illegal dumping of waste
  • Failure of treatment facilities.
  • Immediate actions include:
  • Containment of the spill to reduce exposure
  • Safe collection
  • Ensuring use of appropriate PPE.
  • Incident reporting by filling in the necessary documents.
  • Contractor to be notified about the incident.
  • Environmental decontamination to kill all pathogens.

Waste management should be restored as quickly as possible to reduce infection risks.

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Pest Infestations During Emergencies

  • Emergencies such as floods or prolonged waste accumulation may increase pest activity.

Responses may include:

  • Increased inspections.
  • Enhanced waste management.
  • Environmental cleaning.
  • Water drainage.
  • Targeted Integrated Pest Management.

Environmental management remains the primary control strategy.

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Communication During Emergencies

  • Effective communication is essential.
  • Information should be:
  • Accurate.
  • Timely.
  • Clear.
  • Evidence-based.
  • Appropriate for the intended audience.

Environmental Health Practitioners should communicate findings to:

  •  Incident Management Teams.
  •  Infection Prevention and Control Committees.
  •  Engineering Departments.
  •  Nursing Managers.
  •  Executive Management.

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Environmental Health During Outbreak Investigations

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Objective is to identify environmental sources of infection and implement corrective actions and may include:

  • Water system assessments.
  • Food safety investigations.
  • Environmental cleaning audits.
  • Waste management assessments.
  • Pest inspections.
  • Ventilation assessments.
  • Environmental sampling where indicated

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Outbreak Investigation Process

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1. Confirm the environmental problem.

2. Gather background information.

3. Conduct environmental inspections.

4. Interview relevant staff.

5. Review maintenance records.

6. Assess environmental control measures.

7. Recommend corrective actions.

8. Monitor implementation

9. Verify effectiveness.

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Sampling During Outbreaks

  • Sampling should only be conducted when it supports the investigation and should answer a specific investigation question

Possible samples include:

  • Water.
  • Environmental surfaces.
  • Food.
  • Air (specialised situations).
  • Wastewater.

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Recovery Phase

  • Begins once the immediate emergency has been controlled focuses on restoring safe healthcare services while reducing the likelihood of recurrence

Recovery activities include:

  • Infrastructure repairs.
  • Environmental cleaning.
  • Recommissioning affected services.
  • Water system flushing.
  • Equipment verification.
  • Staff debriefing.
  • Documentation.
  • Review of lessons learned.

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Staff Well-being

  • Emergencies place considerable pressure on healthcare workers.
  • Environmental Health Practitioners should encourage:
  • Clear and open communication.
  • Safe working conditions for employees
  • Adequate PPE
  • Rest breaks to reduce fatigue and increase productivity.
  • Access to support services where available.

Protecting staff contributes to safe patient care and risk reduced

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Documentation

All record should be maintained as they support continuous improvement and future preparedness

These can include :

  • incident reports.
  • Environmental assessments.
  • Corrective actions.
  • Sampling results.
  • Communication records.
  • Recovery activities.
  • Lessons learnt during response phase.

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Building Resilient Healthcare Facilities

  • Healthcare facilities should not simply respond to emergencies—they should become increasingly resilient.
  • A resilient healthcare facility can:
  • Continue essential services.
  • Adapt to changing circumstances.
  • Protect patients.
  • Protect staff.
  • Recover rapidly.

Environmental Health contributes directly to organisational resilience

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Continuous Preparedness

  • Preparedness should include:
  • Annual emergency risk assessments.
  • Review of emergency plans.
  • Simulation exercises.
  • Staff training.
  • Equipment inspections.
  • Resource reviews.
  • Programme evaluations.
  • Preparedness is a continuous process

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Environmental Health Audits

  • Emergency preparedness audits should evaluate:
  • Water contingency plans.
  • Waste contingency plans.
  • Emergency cleaning procedures.
  • Food emergency plans.
  • Chemical spill procedures.
  • Emergency contact lists.
  • Staff competency.
  • Resource availability.

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  • Audit findings should guide improvement plans.

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Leadership During Emergencies

  • Environmental Health Practitioners provide leadership by:
  • Advising Incident Management Teams.
  • Coordinating environmental assessments.
  • Prioritising public health risks.
  • Supporting Infection Prevention and Control.
  • Monitoring environmental recovery.
  • Reporting findings to management.
  • Promoting continuous quality improvement.

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  • Leadership is demonstrated through preparation, communication and evidence-based decision-making.

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Key Take-home Messages

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  • Preparedness is more effective than reacting after an emergency occurs.
  • Environmental Health is essential to emergency planning and response.
  • Water, sanitation, waste management, food safety, environmental cleaning and pest management must continue during emergencies.
  • Environmental risk assessments guide emergency decision-making.
  • Recovery should strengthen systems and improve resilience.
  • Every emergency provides an opportunity for learning and continuous improvement.
  • Environmental Health Practitioners are leaders in building resilient, safe and sustainable healthcare facilities.

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THANK YOU

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