Items to include in the pre-measurement notice and results guidance

Pre-measurement notification and results guidance are not merely about “informing people when the measurement is scheduled.” HR and safety and health managers must provide comprehensive guidance on the processes subject to measurement, hazardous factors, the measurement schedule, worker cooperation requirements, methods for verifying results, and corrective measures in case exposure limits are exceeded.

Workplace environment measurement is a procedure designed to protect workers' health and improve the working environment. Therefore, before measurement, workers must be able to understand why the measurement is being conducted, and after measurement, they must be able to verify the meaning of the results and what corrective measures the company will take.

short answer

In the notice prior to work environment measurement Measurement purpose, schedule, target workplaces/processes, hazardous factors to be measured, measurement agency, worker cooperation requirements, contact information It is recommended to include.

In the measurement result guide Summary of measurement results, whether exposure limits were exceeded, areas for improvement, future action plan, method for verifying results, availability of briefing session You just need to include .

However, the purpose of notifying workers of the results of workplace environment measurements is to provide necessary information, not to share the health status or personal circumstances of specific employees. When providing results, explanations should focus on processes and the work environment, and care must be taken to ensure that personal health information or unnecessary personal information is not included.

When will it be applied?

In situations like the following, it is advisable to prepare guidance standards in advance for before and after workplace environment measurements.

When conducting regular workplace environment measurements
When measurements are required due to a new workplace or process change
In cases where there is a possibility of exposure to hazardous factors such as chemicals, dust, or noise
When an external workplace environment measurement agency visits the site
When a worker representative or a worker in the relevant process requests participation in or an explanation of the measurement process
If measurement results indicate that exposure limits have been exceeded or that improvements are necessary
Cases where measurement results must be shared with the Occupational Safety and Health Committee, worker representatives, and site managers

Workplace environment measurements may require the cooperation of on-site workers. Therefore, it is advisable to inform them not only of “when and who will visit” but also “what tasks will be measured and in what manner” before the measurement.

Items to include in the pre-measurement notice

The notice prior to workplace environment measurement does not need to be too long, but it must include enough information for workers to understand the purpose of the measurement and the requirements for cooperation.

division	Items to include
Measurement purpose	Verification of working environment, identification of exposure levels to hazardous factors, protection of worker health
Measurement Schedule	Date, Time Slot, and Scheduled Visit Time by Process
Measurement target	Target workplace, department, process, work location
Measured hazardous factors	Noise, dust, organic solvents, metals, chemicals, etc.
Measuring agency	Internal personnel or external work environment measurement agencies
Cooperation matters	Perform normal tasks, cooperate with wearing measuring equipment, and provide guidance on work changes.
Contact	Safety and Health Officer, Health Manager, HR Officer

It is better to write notice wording that employees can understand immediately, rather than making it difficult to understand.

For example, you can provide guidance as follows.

We are conducting workplace environment measurements to protect workers' health and improve the working environment. On the day of the measurement, please perform your duties as usual. We ask for your cooperation if any requests are made to wear measurement equipment or verify your work. The measurement results will be provided to the workers at the relevant workplace after verification.

In this situation, if you instruct them to "intentionally reduce or change their work for the measurement," it may be difficult to properly verify the actual working environment. It is advisable to explain that the purpose of the measurement is to check the usual working conditions.

Items for the person in charge to check before measurement

Prior to notification, the person in charge must first align the measurement agency with the information on the measurement target. In particular, when outsourcing to an external agency, it must be verified whether sufficient data necessary for measurement, such as work details by process, chemical usage patterns, and Material Safety Data Sheets, is provided.

In addition, since employee representatives or workers in the relevant process may request to attend the preliminary investigation, it is advisable to designate a contact point in advance.

The items to be checked in advance by the person in charge are as follows.

Whether the process being measured matches the work location
Whether the actual chemicals used and Material Safety Data Sheets are up to date
Whether the work schedule on the day of measurement is not significantly different from usual
Are there any special schedules such as night work, shift work, or short-term work?
Whether the visit route to the measurement agency and on-site entry procedures are prepared
Whether workers need wearable equipment
Whether subcontractor workers are present at the workplace
Whether the recipients and methods of result notification are determined

Insufficient preparation prior to measurement may lead to confusion on-site on the day of measurement or discrepancies between the results and the actual work when interpreting them.

Items to include in the results guide

The results of workplace environment measurements must be provided in a way that workers at the relevant workplace can understand. Since simply posting the results table as is may make it difficult for workers to grasp its meaning, it is recommended to explain the key points alongside it.

The results guide may include the following items.

division	Information
Measurement Overview	Measurement date, measuring agency, process subject to measurement
Measurement items	Measured hazardous factors
Results Summary	Key results by process and whether exposure limits were exceeded
Areas for improvement	Ventilation, airtightness, protective equipment, improvement of work methods, etc.
Follow-up measures	Improvement schedule, responsible department, remeasurement or additional verification plan
Worker Guide	How to check results, contact information, availability of information sessions

Rather than simply ending the result notification with "It is normal" or "It is exceeded," it is better to organize it around what the worker needs to know.

For example, if a process exceeds exposure limits, you must not merely notify the fact of the exceedance, but also provide information on what corrective measures the company will take, what protective measures are required during the work, and when follow-up verification will be conducted.

Points to note when providing results

Workplace environment measurement results provide information regarding processes and the working environment. Therefore, care must be taken not to mix this information with a specific employee's health status, the presence of diseases, or personal health checkup results.

Particularly in small-scale processes where there are few workers, specific employees can be identified solely from the explanation of results. In such cases, it is advisable to focus guidance on process improvements and workplace environment measures, while managing personal health information within separate procedures and access permissions.

Workers may feel anxious if exposure limits are confirmed to have been exceeded. In such cases, rather than assuming that there is "no problem," it is necessary to calmly explain the confirmed results and the plan for corrective measures.

Management table example

The table below is an internal example that can be used to manage pre-work environment measurement notices and result guidance.

division	Management Items	Record example
Before measurement	Announcement Date	2026.08.21
Before measurement	Target process	Painting process, mixing process
Before measurement	Measured hazardous factors	Organic solvents, noise
Before measurement	Measuring agency	External work environment measurement agency
Before measurement	Guide to Worker Cooperation	Wearable equipment coordination, maintaining normal work practices
After measurement	Date of receipt of results	2026.09.07
After measurement	Result notification date	2026.09.11
After measurement	Whether exposure limits are exceeded	Exceeding some processes
After measurement	Improvement measures	Re-announcement of Local Exhaust System Inspection and Protective Equipment Distribution Standards
After measurement	Information session	Proceed upon request by the employee representative
After measurement	Supporting documents	Notice, Results Notice, Improvement Plan

Checklist

The checklist below is for internal inspection purposes to verify that prior notice and notification of results regarding the work environment measurement were provided without omission.

especially Measurement schedule, target process, hazardous factors to be measured, worker cooperation requirements, results notification, corrective action plan is a basic verification item. Among all items If 3 or more are insufficient It is recommended to review the measurement notification and result guidance methods.

division	Confirmation items	check
Before measurement	The purpose and schedule of the measurement were announced.	☐
Before measurement	We provided information on the target workplaces, processes, and departments.	☐
Before measurement	Information on the hazardous substances to be measured and the measurement institutions was provided.	☐
Before measurement	Information regarding worker cooperation and contact details was provided.	☐
Before measurement	We provided the measurement agency with necessary data, such as work details, chemical substances, and MSDS.	☐
Result Information	The measurement results were provided to the workers at the relevant workplace.	☐
Result Information	Explained whether exposure limits were exceeded and what improvements were needed.	☐
Result Information	I finalized the schedule with the person in charge of the improvement measures.	☐
Result Information	We reviewed whether to hold an explanatory meeting upon request from the workers' representative or the Industrial Safety and Health Committee.	☐
Record management	We kept the notice, results guide, improvement plan, and supporting documents.	☐
personal information	We ensured that personal health information or unnecessary personal information was not included.	☐

Common mistakes

The first mistake is announcing only the measurement schedule. Since workplace environment measurements are a procedure that requires on-site cooperation, it is advisable to provide information including the target process, hazardous factors to be measured, the measurement agency, and any cooperation requirements.

The second mistake is posting only the results table without explanation. Workers want to know whether the results exceed exposure limits, whether corrective measures are needed, and what changes will be made in the future, rather than the figures themselves.

The third mistake is sharing the results of exceeding exposure limits too late. Once the results are verified, it is best to quickly finalize worker notifications, corrective actions, and, if necessary, briefings or additional measures.

The fourth mistake is managing workplace environment measurement results together with personal health information. Workplace environment measurement results should be presented focusing on processes and the working environment, while personal health information, such as health examination results, must be managed separately and under restrictions.

If EAP support is needed

Pre-measurement notification and result guidance are not areas that an EAP can substitute. Identification of measurement targets, measurement of hazardous factors, reporting of results, corrective actions, health examinations, and statutory procedures must be managed within the occupational safety and health management system.

However, psychological burden may increase if workplace environment measurement results exceed exposure limits or if workers express anxiety about their health, have experienced accidents, or are concerned about the working environment. In such cases, the EAP can be recommended as a supplementary channel.

For example, you can provide guidance as follows.

If you experience significant health anxiety, sleep problems, post-accident stress, or job stress following the notification of the workplace environment measurement results, you may utilize the EAP counseling channel. EAP does not replace workplace environment improvements, the provision of protective equipment, health examinations, or legal judgments; it is a supplementary channel designed to support the psychological burden of employees.

In cases of suggestions of suicide or self-harm, immediate safety risks, or risks of violence, do not respond solely with general EAP guidance; you must first check emergency routes such as 119, 112, or the suicide prevention hotline 109.

Frequently Asked Questions

Q1. Is it necessary to disclose the names of hazardous factors before workplace environment measurements?

Providing information on which hazardous substances are being measured at the workplace helps workers understand the purpose of the measurements. However, if there is sensitive on-site information or business-related data, it is advisable for the safety and health manager and the measurement agency to review the scope of the information provided.

Q2. Is it okay to reduce the workload on the day of the measurement differently than usual?

Since workplace environment measurements are a procedure designed to verify the actual working environment, intentionally reducing or altering tasks on the day of measurement without a valid reason may not be appropriate. It is recommended that the person in charge consult with the measurement agency in advance to ensure that usual working conditions are reflected.

Q3. To whom should the results of the workplace environment measurement be reported?

The Occupational Safety and Health Act stipulates that the results of workplace environment measurements must be communicated to the workers at the relevant workplace. Since related subcontractors and their employees may be included, it is advisable to verify the scope of notification if there are personnel working together at the workplace.

Q4. Is it mandatory to hold a results briefing?

If requested by the Occupational Safety and Health Committee or the workers' representative, an explanatory meeting regarding the results of workplace environment measurements must be held. Even without a request, providing on-site explanations or opportunities for Q&A can be helpful if exposure limits are exceeded or corrective measures are required.

Q5. What should be included in the results notification if the exposure limit is exceeded?

It is advisable to provide guidance on processes exceeding limits, excess hazardous factors, temporary protective measures, facility and equipment improvement plans, necessary actions such as health checkups, the person in charge and schedule, and methods for follow-up verification. Rather than simply sharing the fact of the exceedance, you should also present directions for improvement.

Next step

Pre-measurement notification and results guidance are procedures for conveying information to workers, serving as the starting point for improving the working environment and building trust.

First, before measurement Target process, measured hazardous factors, schedule, cooperation matters After providing guidance and checking the results Method to verify whether exposure limits were exceeded, corrective measures, and results Try organizing it.

If you wish to overhaul workplace environment measurement guidelines, result sharing standards, improvement measure management, and post-accident psychological support systems at the organizational level, review the operational methods suitable for your organization through a Nudge EAP implementation consultation.

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Source and Information

This content is intended for general informational purposes. Specific matters regarding laws, labor, occupational safety and health, workplace environment measurement, hazardous factor management, health examinations, personal information protection, mental health, and psychological counseling may vary depending on the workplace situation, the latest laws, and official guidelines; therefore, review by relevant experts or agencies may be necessary. In cases involving indications of suicide or self-harm, immediate safety risks, or risks of violence, do not respond solely with general EAP guidance; instead, prioritize checking emergency channels such as 119, 112, or the Suicide Prevention Hotline 109.

Work Environment & Musculoskeletal Health