What is WBGT in workplace safety?

WBGT, or wet bulb globe temperature, is an occupational heat metric that combines temperature, humidity, sunlight or radiant heat, and air movement to better assess heat stress at the worksite. OSHA describes on-site WBGT as the most accurate way to measure environmental heat impact on the body.

Why is WBGT better than heat index for plants?

Heat index is useful as a screening tool, but OSHA states it does not account for wind, sunlight, radiant heat sources, or workload. That makes WBGT more useful for plant conditions where direct sun, hot equipment, poor airflow, and physical effort change the actual heat burden.

How should plants use heat alerts operationally?

Use IMD alerts for planning and on-site WBGT for execution. Alerts help identify risk windows, while WBGT at the workfront helps decide whether to shorten work periods, increase rest breaks, improve supervision, or reschedule heavy tasks.

What should be included in a heat stress risk assessment?

A useful heat stress risk assessment should consider WBGT at the job location, task workload, clothing or PPE burden, acclimatization status, and worker-specific vulnerabilities.

How should new workers be managed during hot weather?

NIOSH recommends gradual acclimatization over 7 to 14 days. New workers should start with reduced exposure and be supervised more closely until they are acclimatized.

Workplace Safety • April 20, 2026

WBGT for Workplace Safety: How Plants Should Turn Heat Alerts into Work-Rest Controls

Shivani Sharma 10 min read

WBGT for Workplace Safety: How Plants Should Turn Heat Alerts into Work-Rest Controls — Supervisor reviewing WBGT workplace safety controls for industrial workers during high heat

No content blocks have been added yet.

More to read

Expand your knowledge on safety culture and tech

View all blogs →

UNCATEGORIZED

#108, First Floor, Workafella Cyber Crown Sec-II
HUDA Techno Enclave, Madhapur, Hyderabad – 500081

Terms Privacy Cookies

By Industry

By Operating Environment

By Use Case

Outcomes

Trust

Proof

About

Library

Help

WBGT for Workplace Safety: How Plants Should Turn Heat Alerts into Work-Rest Controls

More to read

XYZ

Safety Management System: Pledges Don’t Prevent Accidents, Systems Do

Why Hot-Work Incidents Repeat in Indian Plants

Solutions

Company

Resources

Social Media

Related Solution

Explore OQSHA Solutions

More to read

XYZ

Safety Management System: Pledges Don’t Prevent Accidents, Systems Do

Why Hot-Work Incidents Repeat in Indian Plants

Solutions

Company

Resources

Social Media