Work Heat Warning Debate Intensifies as New Mechanism Launches
HK01 · 1 SOURCESabout 4 hours ago1 MIN
Summary
The Labour Department has revised the Work Heat Stress Warning mechanism, which takes effect tomorrow. The enhanced system introduces two new trigger conditions: automatically upgrading the warning level when an extreme heat warning is in force and when temperatures across multiple districts reach 35 degrees Celsius or above. Former Hong Kong Observatory Director Lam Chiu-ying described the new arrangements as progressive but maintained that relying on the Hong Kong Heat Index as the basic factor remains unscientific and represents a deficiency requiring resolution.
Key Points
- New warning conditions take effect tomorrow: Labour Department adds two trigger criteria for automatic warning upgrades
- Extreme heat warning in force now reduces the threshold for Work Heat Stress Warning activation
- When multiple districts record temperatures of 35 degrees or above, the warning level automatically rises one level
- Lam Chiu-ying calls for switching to Wet-Bulb Globe Temperature, which weights solar radiation four times higher than HKHI
- Hong Kong Construction Association urges government to include heat warnings in contract adverse weather clauses
Why It Matters
The debate over scientific measurement standards and legal enforceability will shape worker protection during increasingly frequent extreme heat events in Hong Kong, where construction workers remain particularly vulnerable to heat-related illness and death.
The debate over scientific measurement standards and legal enforceability will shape worker protection during increasingly frequent extreme heat events in Hong Kong, where construction workers remain particularly vulnerable to heat-related illness and death.