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PubMed1989

Exposure to electromagnetic fields in arc welding.

Electric and magnetic fields at the power line frequency (60 Hz) and its harmonics have been measured around 22 arc welders. The electric field strengths in most cases were very low (1 V m-1) and only for one device reached 300 V m-1. Magnetic flux densities ranged from a few microT to a few hundred microT (a few A m-1 to a few hundred of A m-1). Several devices surveyed produced high magnetic flux densities (200-400 microT), which are rarely encountered in the environment and are representative of high occupational exposures.

Electromagnetic Fields↗
PubMed2005

Respiratory health effects related to occupational spray painting and welding.

OBJECTIVE: We sought to study respiratory symptoms among automobile assembly workers. METHODS: In a cross-sectional study, we compared rates of respiratory symptoms and of physician-diagnosed asthma and COPD in painters and welders to those in assembly workers. RESULTS: Respiratory symptom reporting was significantly increased among welders (odds ratio [OR] = 1.79-2.61) compared with painters or assembly workers, after age, race, and smoking adjustment in multiple logistic regression analyses. Welders also reported significantly more improvement in symptoms on weekends or vacation. However, no significant elevations in adjusted ORs were observed for physician-diagnosed asthma or chronic obstructive pulmonary disease for welders. In contrast, significantly more painters had physician-diagnosed chronic obstructive pulmonary disease (OR = 3.73, 95% confidence interval = 1.27, 11.0). CONCLUSIONS: Welders and painters in this plant appeared to have increased risk of respiratory health effects compared with assembly workers.

Adult↗