Bioaerosol Monitoring & Biological Aerosols Exposure Assessment

Protect worker health and support COSHH compliance with professional Bioaerosol Monitoring from Synergy Environmental Solutions.

Bioaerosols (biological aerosols) can include bacteria, fungi, spores and fragments of biological material that become airborne during certain work activities. We assess exposure in real working conditions and provide clear, practical recommendations to help you control risk.

picking line in recycling facility that would need bioaerosol monitoring

What Are Bioaerosols?

Bioaerosols are airborne particles of biological origin, which may include:

  • Bacteria and bacterial fragments
  • Fungi and fungal spores
  • Endotoxins and other biological components
  • Biological debris from organic materials

They can be generated wherever organic matter is disturbed, handled, processed, or becomes wet and contaminated.

This is a COSHH issue because bioaerosols can affect health through inhalation, and in some settings through skin/eye contact as well.

Where Are Bioaerosols a Workplace Risk?

Bioaerosol exposure is most commonly associated with:

  • Waste and recycling operations (including MRFs)
  • Composting and organic waste processing
  • Wastewater and sewage treatment activities
  • Agriculture and animal handling
  • Food waste handling and processing
  • High-contamination cleaning tasks and wet processes

In many workplaces, exposure is task-based (peaks when materials are tipped, moved, shredded, screened, or washed down).

Health Risks Associated with Bioaerosol Exposure

Potential health effects can include:

  • Eye, nose and throat irritation
  • Coughing and wheeze
  • Allergic reactions and sensitisation
  • Occupational asthma
  • Flu-like symptoms and respiratory inflammation

The risk depends on the type of work, materials handled, ventilation, and how effectively exposure is controlled.

COSHH Requirements and Monitoring Approach

Under COSHH, employers must assess and control exposure to substances hazardous to health — including biological agents and bioaerosols where there is a risk to health.

HSE guidance on monitoring makes clear that monitoring is used to show control is adequate, not to measure health effects.

In bioaerosol settings, monitoring is often used to:

  • Identify high exposure tasks/areas
  • Evaluate whether controls are effective
  • Support risk assessments and improvement plans
  • Provide evidence for audits, clients, and regulators

For certain regulated biowaste facilities, the Environment Agency has published guidance on approaches to environmental bioaerosol monitoring (M9).

Our Bioaerosols Monitoring Service

Bioaerosols FAQ

Q1 What is the difference between bioaerosols and dust?

Dust is generally non-biological particulate matter. Bioaerosols are airborne particles of biological origin such as bacteria, fungi and spores.

Q2 Do bioaerosols have a workplace exposure limit (WEL)?

Not in the same way as many chemical substances. Bioaerosol assessment focuses on risk, tasks, controls and practical exposure reduction rather than a single WEL-based approach.

Q3 Where are bioaerosols most common?

Commonly in waste and recycling, composting, and wastewater/sewage-related work.

Q4 Can monitoring show whether controls are working?

Yes. Monitoring is used to show whether control is adequate and to identify where improvements are needed.

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Why Choose Synergy Environmental Solutions?

  • Occupational hygiene-led approach
  • Practical, site-focused monitoring (not box-ticking)
  • Clear recommendations your team can action
  • UK-wide service
  • Fast, helpful reporting

Book Bioaerosol Monitoring

If you operate in waste, recycling, composting, wastewater, agriculture, or any process that generates biological aerosols, we can help you understand and reduce exposure.

Request a Quote

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