Related Experiment Video
Updated: May 25, 2026

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
Occupational hand dermatitis among cement workers in Taiwan
Bour-Jr Wang1, Jyun-De Wu, Shiann-Cherng Sheu
1Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Tainan, Taiwan.
Occupational cement hand dermatitis affects many Taiwanese cement workers, with irritant contact dermatitis being most common. Potassium dichromate is a frequent allergen, highlighting the need for regulatory action.
Area of Science:
- Occupational Health
- Dermatology
- Allergology
Background:
- Occupational dermatitis is a significant health concern for cement workers.
- Irritant and allergic cement contact dermatitis are primary occupational hazards.
Purpose of the Study:
- To assess the severity of occupational cement contact dermatitis in Taiwan.
- To identify common allergens responsible for cement contact dermatitis among workers.
Main Methods:
- 97 cement workers participated, providing demographic and work activity data via questionnaire.
- Dermatological examination and patch testing with 25 standard allergens were performed.
- Skin manifestations and allergic reactions were systematically evaluated.
Main Results:
- 65% of workers had occupational cement hand contact dermatitis, primarily affecting the hands.
- Common skin issues included dorsal hand thickening and palm hyperkeratosis.
- Patch testing revealed allergies to potassium dichromate (24%), thiuram mix (9%), fragrance mix (9%), and cobalt chloride (7%).
Conclusions:
- Occupational cement hand dermatitis is a severe issue in Taiwan.
- Potassium dichromate, thiuram mix, fragrance mix, and cobalt chloride are key allergens.
- High chromium hypersensitivity rates necessitate regulating ferrous sulfate in cement.
Related Concept Videos
Hand hygiene
Hand washing...
Handwashing I: Introduction and Types of Equipment
Hand wash basins in clinical areas should have faucets that can be turned on and off without using the hands; that is, they should be non-touch or lever-operated.
Masonry in Cold and Hot Weather Conditions
Other key practices include keeping masonry units and sand dry and...
Hydration of Cement
Strength and Heat of Hydration
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
Aggregate Cement Ratio
