Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

Heat Stress & Thermal Exposure

Protect workers in demanding temperatures through informed, adaptable controls
Employees in PPE taking soil samples
Shining sun with rays and clear blue sky background.
INTRO

Building heat exposure management into everyday operations

Effective heat exposure management considers the full range of conditions that influence how the body responds to demanding temperatures. Workload, acclimatization, protective clothing, radiant heat, air movement and individual factors can all affect heat strain across outdoor work, process areas and other challenging environments.

Onterris helps organizations evaluate thermal conditions, understand how work practices influence exposure and develop practical prevention measures for the field. Our industrial hygiene and health and safety teams connect measurement, program design and implementation to help protect workers and support safe, reliable operations.

Supporting Your Industry

Understanding heat stress requires looking beyond weather alone to evaluate how working conditions, physical demands and other factors affect exposure and worker safety.
why it matters

Adapt heat prevention strategies as conditions change

Effective heat prevention relies on a system that recognizes changing conditions and translates them into clear, timely decisions that help protect workers from heat strain.
  • Temperature, humidity, radiant heat and air movement can shift throughout the workday
  • Workload and protective clothing are important factors in understanding physiological heat burden
  • Acclimatization helps new and returning workers adjust safely to demanding conditions
  • Indoor operations require consideration even when outdoor heat advisories are not in effect
  • Early recognition of symptoms supports timely action before heat strain becomes more serious

Build heat decisions around conditions and work demands

Onterris combines field measurement with task, personal protective equipment (PPE) and workforce information to characterize thermal exposure. The resulting controls and response plans are designed for the way conditions change across locations, shifts and operating scenarios.
Outdoor worker drinking water on sunny day. Keeping hydrated to avoid heat stress or overheating.
Our Capabilities

Thermal exposure management for changing conditions

Field assessment and program support turn heat exposure insights into practical decisions for workers and supervisors
Indoor and outdoor heat-stress surveys
Environmental heat and radiant-source measurements
Workload,clothing and work-duration evaluation
Acclimatization and high-risk worker considerations
Heat illness prevention program development

Related Services

Man in a red shirt wearing a clipped-on noise dosimeter.

Noise, Vibration & Hearing Conservation

Assess workplace noise and vibration exposures with personal dosimetry, sound-level surveys, vibration monitoring, engineering controls and hearing conservation support.
Worker using a tablet at an electrical substation during an EMF and RF exposure assessment

EMF & RF Exposure Assessment Services

Assess EMF and RF exposure with calibrated field measurements, task-based evaluations and practical controls for workers, implants and sensitive equipment.
Team of maintenance engineers in safety gear and hard hats inspect and test machines.

Ergonomic Risk Assessments & Human Factors

Identify ergonomic and human factors risks with workplace assessments, job-task analysis and practical controls designed to reduce strain, error and injury.
Employees putting on oxygen masks

Respiratory Protection, Fit Testing & Medical Surveillance

Respiratory protection and PPE program support including hazard assessments, respirator selection, fit testing, training, medical evaluation coordination and program review.