The effect of personal protective equipment on thermal stress: An experimental study on firefighters

被引:9
|
作者
Ghiyasi, Samira [1 ]
Nabizadeh, Hamed [2 ]
Jazari, Milad Derakhshan [3 ]
Soltanzadeh, Ahmad [4 ]
Heidari, Hamidreza [4 ]
Fardi, Ali [5 ]
Movahed, Elham [6 ]
机构
[1] Islamic Azad Univ, Dept Environm Engn, Cent Tehran Branch, Tehran, Iran
[2] Larestan Univ Med Sci, Fac Hlth, Dept Occupat Safety & Hlth Engn, Fars, Iran
[3] Shiraz Univ Med Sci & Hlth Serv, Sch Publ Hlth, Dept Occupat Safety & Hyg Engn, Shiraz, Iran
[4] Qom Univ Med Sci, Fac Hlth, Res Ctr Environm Pollutants, Dept Occupat Safety & Hlth Engn, Qom, Iran
[5] Hamedan Univ Med Sci & Hlth Serv, Sch Publ Hlth, Dept Occupat Safety & Hlth Engn, Hamadan, Hamadan, Iran
[6] Islamic Azad Univ, Tehran Sewerage Co, Dept HSE, Dept Environm Engn,Sci & Res Branch, Tehran, Iran
关键词
Predicted mean vote (pmv); predicted percentage dissatisfied (ppd); thermal comfort; wet-bulb globe temperature (wbgt); exposure; firefighters; thermal stress; personal protective equipment; SAFETY-BEHAVIOR; HEAT-STRESS; RESPONSES; EXERCISE; COMFORT; HEALTH; PMV;
D O I
10.3233/WOR-203259
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
BACKGROUND: Various parameters can affect the performance of firefighters. Thermal stress in firefighters is one of the most important harmful factors, which causes impaired performance and subsequent occupational accidents. Therefore, this study aimed to evaluate the effect of personal protective equipment (PPE) on thermal stress in firefighters. MATERIALS AND METHODS: This descriptive-analytical cross-sectional study was performed on 30 firefighters. Heart rate, metabolism and temperature parameters were measured with and without using PPE in a simulated standard chamber. Then, the two indices of predicted mean vote (PMV) and predicted percentage dissatisfied (PPD) were calculated. Data analysis was performed using SPSS version 22.0. RESULTS: The results showed that PPE-induced weight directly increased heart rate and indirectly led to an increase in metabolism and temperature as well as significant changes in PMV and PPD indices (p < 0.001). In addition, our results showed that the effect of thermal resistance of clothing (Clo) on PMV and PPD indices was very high (p < 0.001). CONCLUSION: The findings of the study indicated that heat stress in firefighters is influenced by PPE weight and thermal resistance of clothing. Therefore, cooling vests can be used to reduce the thermal stress induced by temperature rise resulted from metabolism, PPE weight and thermal resistance of clothing. Reduced thermal stress will lead to the cooling of body temperature to acceptable levels of PMV and PPD.
引用
收藏
页码:141 / 147
页数:7
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