Knowella

Qualitative Exposure Assessment

Rates likely exposure using professional judgement, task knowledge and existing data, before any sampling. Run for each exposure group. Carried out by a hygienist. Decides which groups need sampling and which do not.

KnowHealthAssessmentHLT-002Pinned in navigation
Completed by
Carried out by a hygienist
Raised
When the task, area or population being assessed is new or

Summary

In short

  • A qualitative exposure assessment is an assessment used in KnowHealth that rates likely exposure using professional judgement, task knowledge and existing data, before any sampling. It is built against AIHA, ISO 45001 cl.6.1.2 and forms part of the Hearing Conservation programme.
  • Run for each exposure group. Carried out by a hygienist.
  • The template holds 45 fields across 4 sections.
  • Scoring is aiha category 0 to 4, where high is bad.
  • ISO 45001 is occupational health and safety management systems. The international standard for managing worker health and safety. Certifiable, and the backbone of most of this library.
  • It connects to the rest of the library: links SEG, Substance.

What it is

What it is

What is a qualitative exposure assessment?

A qualitative exposure assessment is an assessment used in KnowHealth that rates likely exposure using professional judgement, task knowledge and existing data, before any sampling. It is built against AIHA, ISO 45001 cl.6.1.2 and forms part of the Hearing Conservation programme.

When is a qualitative exposure assessment completed?

A qualitative exposure assessment is completed when the task, area or population being assessed is new or has materially changed. Run for each exposure group.

When to use it

When to use it, and when not to

This assessment is one step in a larger programme. Using it for work that belongs to a neighbouring template produces records that are hard to report on later.

Use it for

  • The event or activity this assessment covers has occurred, or is about to
  • A new record is needed; each one gets its own ID in the form QEA-2026-000
  • You are running the Hearing Conservation programme and this is one of its steps
  • A linked record needs this one to exist: links seg, substance

Not for

  • Similar Exposure Group Register, which groups workers who share the same tasks, agents and exposure patterns.
  • Personal Air Sampling Record, which records a sample taken from a worker's breathing zone over a shift.
  • Area Monitoring Record, which records fixed point sampling in a work area rather than on a person.
  • Anything outside KnowHealth, which belongs in the workspace that owns that process

Standards

What it is built against

ISO 45001Occupational health and safety management systems

The international standard for managing worker health and safety. Certifiable, and the backbone of most of this library.

ISOInternational Organization for Standardization

A voluntary international standard. Widely adopted, often required by customers, and certifiable where a management system standard.

AIHAAmerican Industrial Hygiene Association

Professional body publishing exposure assessment strategy and statistical guidance.

FAQ

Frequently asked questions

What is the qualitative exposure assessment template based on?+

It is built against AIHA, ISO 45001 cl.6.1.2. ISO 45001 is occupational health and safety management systems. The international standard for managing worker health and safety. Certifiable, and the backbone of most of this library. ISO is international Organization for Standardization. A voluntary international standard. Widely adopted, often required by customers, and certifiable where a management system standard.

What sections does the qualitative exposure assessment contain?+

There are 4 sections: header, the exposure, judgement inputs, outcome. Together they hold 45 fields, 33 of which are required.

How often is a qualitative exposure assessment raised?+

A new record is raised when the task, area or population being assessed is new or has materially changed. Each one is given an ID in the form QEA-2026-000, so it can be traced and referenced from other records.

Which programme does the qualitative exposure assessment belong to?+

It is part of Hearing Conservation, Occupational Health Surveillance. Exposure known, controls attempted before protection, and shifts in hearing detected early.

How is a qualitative exposure assessment scored?+

Scoring is aiha category 0 to 4. High is bad. Scores exist to make the form tell you something, not to produce a percentage for its own sake.

Can the qualitative exposure assessment template be changed?+

Yes. Every field, option, score and conditional rule is editable, and the links to other templates come with it. Most teams install it as it is, run it for a cycle, then adjust.

The agents

What the agents do with it

The form is the easy part. Keeping it current, routing it to the right owner and holding the evidence together is the work that actually slips.

KnowHealth

Holds the qualitative exposure assessment library against your registers, routes each record to its owner, and keeps the evidence trail together.

Ella

Coordinates the crew, rolls completion and exceptions into one view, and holds every write for your approval before it touches a record.

This template lives in KnowHealthemployee wellbeing. Exposure monitoring, health surveillance, case management and return to work.

Meet KnowHealth

Sources

Sources

  • ISO 45001 — Occupational health and safety management systems
  • ISO — International Organization for Standardization
  • AIHA — American Industrial Hygiene Association

KnowHealth

Also in Exposure Monitoring

6Browse the whole library
Register

Similar Exposure Group Register

Groups workers who share the same tasks, agents and exposure patterns. Built once and reviewed yearly. Maintained by the hygienist. Sampling one group member represents the whole group, which is what makes exposure monitoring affordable.

Record

Personal Air Sampling Record

Records a sample taken from a worker's breathing zone over a shift. Taken to the sampling plan. Carried out by a trained sampler with calibrated equipment. Results are compared against the occupational exposure limit for that substance.

Record

Area Monitoring Record

Records fixed point sampling in a work area rather than on a person. Taken to the monitoring plan. Carried out by a trained sampler. Useful for finding sources and checking ventilation, but does not replace personal sampling.

Record

Noise Dosimetry Record

Records a worker's noise exposure over a full shift using a personal dosimeter. Taken when noise may exceed the action level, and after changes. Carried out by a trained sampler. Drives hearing protection selection and hearing test requirements.

Assessment

Chemical Exposure Assessment

Assesses exposure to a specific chemical across the tasks where it is used. Run when a chemical is introduced and after process changes. Carried out by a hygienist. Combines sampling data with task observation and control effectiveness.

Review

Exposure Result Review

Reviews sampling results statistically across a group, rather than judging single samples. Run after each sampling campaign. Carried out by a hygienist. The 95th percentile matters more than the average, because that is where overexposure hides.

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