INVESTIGATION HEAT STRESS IN SMALL ENTERPRISE IN QOM CITY

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HAJIZADEH R.; BEHESHTI M.H.; KHODAPARAST I.; MALAKOUTI J.; RAHIMI H.

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Journal: Journal of Health and Safety at Work Year:2014 | Volume:3 | Issue:4 Page(s): 59-68

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Information Journal Paper

Title

INVESTIGATION HEAT STRESS IN SMALL ENTERPRISE IN QOM CITY

Author(s)

Keywords

WBGT INDEXQ3

HEAT STRESSQ2

SMALL WORKSHOPSQ4

PULSEQ4

BLOOD PRESSUREQ4

Abstract

Introduction: HEAT STRESS in workplaces cause multiple problems such as thermal stresses, thermal discomfort and in more severe cases may lead to accidents and diseases related to excessive heat. The aim of this study was to evaluate HEAT STRESS adopting WBGT INDEX in some small enterprise in Qom city and also to examine the relationship between WBGT and physiological indices.Material and Method: This Cross-sectional study was conducted in 25 SMALL WORKSHOPS in Qom city including of 10 indoor and 15 outdoor workshops in August 2012. WBGT were measured according to the ISO7243 standard. The physiological responses including PULSE rate, systolic and diastolic BLOOD PRESSURE were measured among 25 workers (one from each workshop).Result: The average WBGT INDEX for indoor job were 27.55 oC among auto body repair, 27.45 oC in mechanics, 24.64 oC in painters, 26.73 oC in welder and 25.89 oC in manufacturing doors and windows makers. For outdoor jobs as auto body repair, mechanics and painters it was 30.01oC, and for welders and doors and windows makers 28.52 oC. Compared to the standard of ISO7243 WBGT all SMALL WORKSHOPS were higher than threshold limit. Auto body repair (30.22 oC) and painting (30.03 oC) workshops had highest WBGT. Average WBGT in auto body repair (as a job with most exposed to the open space and solar radiation) with welder and doors and windows, showed statistically significant differences T-test using WBGT with PULSE rate, systolic and diastolic BLOOD PRESSURE did not have statistically significant (P>0.05). The findings indicated that workers are exposing to HEAT STRESS and doing more researches and representing preventive counter measures for the workers in this field are essential.Conclusion: HEAT STRESS in almost all of the studied workplaces are higher than the recommended limits, and the outdoor workshops had the highest thermal stress, although HEAT STRESS did not show a significant correlation with the studied strains.

Cites

THE RELATIONSHIP BETWEEN ENVIRONMENTAL STRESS INDEX (ESI) AND SOME PHYSIOLOGICAL PARAMETERS OF WORKERS IN AN OPEN-PIT MINE

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APA: Copy

HAJIZADEH, R., BEHESHTI, M.H., KHODAPARAST, I., MALAKOUTI, J., & RAHIMI, H.. (2014). INVESTIGATION HEAT STRESS IN SMALL ENTERPRISE IN QOM CITY. JOURNAL OF HEALTH AND SAFETY AT WORK, 3(4), 59-68. SID. https://sid.ir/paper/235567/en

Vancouver: Copy

HAJIZADEH R., BEHESHTI M.H., KHODAPARAST I., MALAKOUTI J., RAHIMI H.. INVESTIGATION HEAT STRESS IN SMALL ENTERPRISE IN QOM CITY. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2014;3(4):59-68. Available from: https://sid.ir/paper/235567/en

IEEE: Copy

R. HAJIZADEH, M.H. BEHESHTI, I. KHODAPARAST, J. MALAKOUTI, and H. RAHIMI, “INVESTIGATION HEAT STRESS IN SMALL ENTERPRISE IN QOM CITY,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 3, no. 4, pp. 59–68, 2014, [Online]. Available: https://sid.ir/paper/235567/en

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