Moderate cooling, caused by a cold indoor working environment, may increase muscle-, airway-, and skin symptoms. The prevalence of feeling cold may be a useful exposure estimate in moderate cold exposure situations.

Musculoskeletal symptoms were found among the majority of production workers in the whitefish, shrimp and salmon industry, the highest prevalence being among female workers. The main difference between types of seafood industries was the high prevalence of symptoms from wrist/hands among workers in the salmon industry. Cold work was an important risk factor for musculoskeletal symptoms.

Seafood industry workers showed a high prevalence of work-related airway symptoms. Further research on the relationship between exposure and effects is necessary.