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Exposure register: Handling chemical exposure

Exposure register: Handling chemical exposure

Exposure register: Handling chemical exposure

Ingeniør som arbeider med eksponering og risikovurdering

Companies that handle hazardous chemicals or other high-risk processes may be legally required to maintain an exposure register. The register must document which employees have been exposed to dangerous substances and may be of crucial importance if illness develops many years later.

Here, we examine the purpose of an exposure register, the relevant legal obligations, and how companies can ensure compliant registration and documentation practices.

What is an exposure register?

An exposure register should document employees’ potential and actual exposure, including accidents, spills and other incidents that may have led to contact with hazardous substances. This may be in connection with hazardous substances or processes related to:

  • Chemicals (carcinogenic, mutagenic and toxic to reproduction)
  • Asbestos
  • Mining work
  • Biological material
  • Radiation

Keep in mind that only certain chemicals are relevant for inclusion in the exposure register.

The exposure register is an important tool for identifying and monitoring exposure to hazardous factors. Because illnesses resulting from such exposure often develop over a long period, sometimes many years after the exposure occurred, it is essential to record incidents continuously and as early as possible.

An exposure register can help to:

  • Monitor employees’ health over time
  • Provide a basis for health surveillance and support risk assessments
  • Ensure documentation if illness develops several years after exposure

Who may be exposed?

Several occupational groups that may be exposed to hazardous substances and processes.

Typical examples are:

  • Employees in industry (chemical industry, metal production, welding and woodworking)
  • Employees in construction (demolition, remediation, work with asbestos and concrete dust)
  • Healthcare and laboratory workers (radiation, chemicals and infectious agents)
  • Employees in renovation and waste management (biological material and hazardous waste)
  • Employees in mines and tunnels (dust, gases and explosives residues)
  • Employees within energy and research (radioactive material and ionising radiation)

What must an exposure register contain?

The content of an exposure register may vary. The information that must be recorded depends on the type of exposure involved – for example chemicals (CMR substances), asbestos, biological agents, mining work, or ionising radiation.

The purpose of the register is to ensure traceable and verifiable documentation over time. The regulations therefore set clear requirements regarding the information that must be included. It is also specified that the register must not contain health data beyond what is authorised by the legislation.

Although the details vary depending on the type of exposure, an exposure register will typically include:

  • The employee’s name and national identification number
  • The work carried out
  • The substance, material, or process to which the employee has been exposed
  • The period and duration of the exposure
  • Any measurement results or assessments of exposure levels
  • The date of registration

An exposure register must only contain the information required by the regulations. It must not function as a medical record.

Documentation and storage requirements

The register must be kept for a very long time, often between 40 and 60 years, depending on the type of exposure. The information must be available for as long as the employee is alive, and can be decisive in documenting occupational diseases and any compensation cases.

Individual employees have the right to access their own registrations. In addition, the register must be available to relevant personnel, for example the occupational health services, safety representatives, the working environment committee and any other persons working with HSE in the company.

Who is responsible for the register?

Both employer and employee have certain responsibilities, but it is the employer who has the main responsibility for creating and maintaining the exposure register.

Employee’s responsibility

  • Follow the company’s routines and guidelines in connection with registration
  • Report accidents, exposures or other situations that may have led to contact with hazardous substances
  • Participate in necessary training and help ensure that the information recorded is correct

The employer’s responsibility

  • Establish routines and guidelines for exposure registration
  • Provide training on how employees should report
  • Thoroughly document and retain records for a sufficient period of time
  • Ensure that the register is used
  • Ensure that employees have access to their own registrations

Common challenges

Inadequate reporting and follow-up

Many companies find that employees do not report exposures, either because the incident is perceived as minor, the routines are unclear, or because it is simply forgotten. This is often linked to a lack of training in chemical safety and understanding of the risk. In addition, many companies are unsure when they are actually required by law to keep an exposure register.

Difficulty storing registrations over a longer period of time

As some types of exposure require the register to be kept for up to 60 years, it requires good routines for both storage and for safeguarding privacy (GDPR). As long as the employee is alive, it should be possible to document any exposure, especially if there is a risk of cancer. As there are no specific requirements for how records are kept, many companies lack good enough routines to handle this.

A well-maintained exposure register is an important tool for both the employee and the employer. It contributes to prevention, follow-up and documentation, especially because health damage often only becomes apparent many years after exposure. Digital HSE and chemical systems can help companies identify chemicals that are subject to registration, carry out the actual registration and ensure safe storage of the information.

Risk assessment webinar 11.02.2025

Risk assessment webinar 11.02.2025

Get confident in chemical risk assessment

Are you unsure how to carry out good risk assessments of chemicals? Now is your chance to learn what you need!

Workplace Safety invites you to a practical and useful webinar where the Swedish Labor Inspection Authority’s occupational hygienist explains the requirements, shares good advice and answers relevant questions about the topic.

Date: Tuesday, February 11, 2025

Time: 10:00-10:45

What you get:

✅ Insight into the requirements for risk assessment of chemicals
✅ Specific guidance on what a risk assessment must contain
✅ Tips and tricks to make the process easier and more efficient

Who is it suitable for?

This webinar is suitable for managers, HSE managers or anyone who works with chemicals in the workplace.

The webinar is open to everyone and is especially relevant for companies that have hazardous chemicals in the workplace.

Feel free to share the registration page with others who you think might benefit from the webinar!

Risk assessment of chemicals

Risk assessment of chemicals

Risk assessment of chemicals

This article was written for the Norwegian Automobile Industry Association and published in the member magazine Bilbransjen.

An important part of your HSE work

Risk assessment of chemicals is an important part of HSE work, especially in the automotive industry where employees handle a wide range of chemicals every day.

Chemicals can have hazardous properties, especially those used in workshops and paint shops. If handled incorrectly, they may cause acute or long-term health issues, environmental pollution, or even explosive incidents. Carrying out thorough risk assessments enables you to identify the necessary control measures to ensure safe use and management of chemicals.

Risk assessments must be documented in writing

In Norway, the requirements for chemical risk assessment are regulated by the Working Environment Act and regulations such as the Regulations on the Performance of Work. Employers are obligated to identify and assess all chemical substances used in the workplace, and every risk assessment must be documented in writing.

“The risk assessment should always cover the entire work operation in which the chemicals are used”

The way of use guides the risk assessment and measures

A risk assessment must always be based on the specific use of the chemical in question.

The assessment should evaluate the entire work operation in which the chemical is used. If the same chemical is applied in different work operations, this must either be reflected within a single risk assessment or addresses through separate assessments.

Different applications may require different protective equipment and additional training. For example, the use of diisocyanates with a high degree of exposure will trigger mandatory additional training.

Conducting a risk assessment

There are several ways to conduct a chemical risk assessment. This following steps provide a general overview of the process:

An updated chemical inventory: The chemical inventory provides an overview of all chemicals and their safety data sheets (SDS). Always use the latest version of the SDS and verify key information about hazardous properties.

Assessment of hazard: Assess the inherent hazards of the chemical using information from the SDS.

Exposure assessment: Analyse how the chemical is used, quantities handled, routes of exposure (e.g. inhalation, skin contact, and ingestion), frequency and duration of work, and existing workplace control measures.

Characterisation of risk: Combine hazard and exposure information to estimate the overall risk.

Implementation of control measures: Based on the risk assessment, implement measures to reduce risk, such as improved ventilation, appropriate PPE, or substitution with safer alternatives. Integrate these measures into work instructions, checklists, and training routines.

Documentation and auditing: Document the process and review it regularly to ensure assessments remain up to date.

Control measures

Control measures may include the following:

  • Necessary ventilation
  • Training of employees
  • Use of protective equipment

For example, a risk assessment of car painting may include multiple chemicals. This may require isolation of the work area, local exhaust ventilation, training in the use of diisocyanates during spray application, establishing a designated processing zone, and use of protective equipment.

Work smart with user-friendly tools

Digital chemical management systems provide structured processes that make it easier to conduct and document risk assessments in line with regulatory requirements.

Use the expertise of the occupational health service

The occupational health service is a key advisor in risk assessment and employee training on safe chemical handling.

With in-depth knowledge of safe working practices and chemical handling, they can help ensure a safe workplace.

Remember: if the risk conditions warrant it, it is a legal requirement to be affiliated with an approved occupational health service, so make full use of this resource.

Written by Hans Kristian Brekken, chemist and product developer at Workplace Safety.