1. 1. Work activities in cold storage rooms were assessed by a mailed questionnaire survey of cold storage facilities in Japan.
2. 2. There are nearly 4000 cold storage facilities and about 80% are being kept at temperatures below −20°C.
3. 3. The chief items of stock in storage were marine products, livestock products, frozen food and agricultural products.
4. 4. Methods used for loading and unloading in cold storage rooms are forklift, manual handling, and automatic machines.
5. 5. Use of forklifts appeared to be widespread.
6. 6. Working time differed according to the ambient temperature of the cold storage rooms.
7. 7. Common ailments of cold storage workers are lumbago, bronchitis, neuralgia etc.
Author Keywords: Cold storage; working condition; air temperature; health state