Investigation on Occupational Hazards and Electric Welding Operation
- VernacularTitle:电焊作业环境健康危害状况调查
- Author:
Jinyan SUN
;
Jing LIU
;
Meili LI
- Publication Type:Journal Article
- Keywords:
Air pollution;
Electric welding operation environment;
Health hazards;
Control countermeasure
- From:
Journal of Environment and Health
2007;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study occupational hazards effects of electric welding,and evaluate protective measurements for different occupational hazards. Methods During 2008,occupational health services for 11 factories with shield carbon-dioxide arc welding work were provided,including surveillance of the work environment and surveillance of workers’health. Surveys of workers’health through various types of health examinations were carried out. Four hundred and thirty-three welding workers of 11 factories were included. Results The concentrations of 17 welding fume samples and 6 manganese dioxide samples were over the released limits of national standard,the maximum was 5.5,1.6 times of the limit respectively. The exceeding standard rate. of welding fume had positive correlation with the density of welding equipment(r= 0.72,P=0.01) and negative correlation with the ventilation area(r =-0.63,P =0.04) .The examination results showed that nobody suffered occupational diseases or occupational contraindications. Conclusion For the environmental risk factors existed in the electric welding operation site,more attention should be paid to the potentially occupational adverse effects of electric welding.
