Gas monitoring is one of the cornerstones of occupational safety. But in what situations is it truly needed? Who decides how different gases must be monitored in different scenarios?
The need for gas monitoring is influenced by several factors: the work environment, the substances handled, risks, industry regulations, and the technical characteristics of the space. In workplaces where toxic, explosive or oxygen-displacing gases may be present, gas detection is a critical part of risk management. In some cases, authorities such as Tukes, the fire department or environmental regulators provide input on monitoring requirements.
The need for gas monitoring is defined by:
1. Gases used or generated
Does the work environment include chemicals or processes that can release hazardous gases?
- Toxic gases (e.g. hydrogen sulfide (H₂S), ammonia (NH₃), carbon monoxide (CO))
- Explosive gases (e.g. methane (CH₄), propane (C₃H₈), hydrogen (H₂))
- Oxygen-displacing gases (e.g. carbon dioxide (CO₂), nitrogen (N₂), argon (Ar))
2. Structure and ventilation of the space
Enclosed or semi-enclosed spaces such as storage rooms, basements, or technical rooms are prone to gas accumulation. Ventilation efficiency and air circulation also affect the need for monitoring.
3. Nature and frequency of work
Repetitive processes, lone work and maintenance tasks may require personal gas monitoring, while permanent risks may necessitate fixed gas detection systems.
4. Legislation and regulatory requirements
Regulations guide gas monitoring needs in many industries. For example:
- HTP values (occupational exposure limits) define permissible exposure levels
- ATEX directives require gas monitoring in explosive environments
- Occupational safety authorities, Tukes and fire departments may issue their own recommendations or requirements
We know what safety requires
Detector Oy helps identify, assess and solve gas monitoring needs on a case-by-case basis. We manufacture our fixed gas detectors in Finland and deliver both fixed systems and personal gas monitors, tailored to different environments. Our nationwide service network ensures your system stays operational throughout its entire lifecycle.
Need help assessing your gas monitoring requirements?