Labor productivity losses over western Turkey in the twenty-first century as a result of alteration in WBGT

Altinsoy, Hamza; Yildirim, Haci Ahmet

doi:10.1007/s00484-014-0863-z

Cited by 27 publications

(21 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…여기서 수증기압은 기온과 상대습도만으로 유도할 수 있기 때문에(Eq. (9)) 운동장 및 공장의 WBGT 산출이 용이하여, 일상 현장에서 실용적으로 사용되고 있다 (Altinsoy and Yildirim, 2015;Cooper et al, 2016;Kakamu et al, 2017;Smith et al, 2017). 다만, 정오에 풍속이 약한 날을 대상으로 개발되어, 이 조건을 만족하지 못 할 때는 과대평가 될 수 있다.…”

Section: Wbgt 추정모델unclassified

Evaluating the Accuracies of the WBGT Estimation Models and their Onsite Applicability in Korea

Lee¹,

Kim²,

Cho³

et al. 2019

J. Korean Soc. Hazard Mitig

View full text Add to dashboard Cite

This study compared the accuracy and sensitivity of the Wet-Bulb Globe Temperature (WBGT) models developed based on domestic and international studies. The applicability of these models to formal weather observatory and user-installed sites such as the military training centers in Korea were evaluated. For the WBGT estimation, a physical model and four empirical models were used. A Liljegren model, which is known to have high accuracy, was used as the physical model. The KMA2006, JME (four-variable), KMA2016, and ABM (two-variable) models were used as the empirical models. The root-mean-square errors (RMSE) of ABM and Liljegren models obtained in this study are approximately 1 ℃ higher than RMSE results in US and New Zealand. The KMA2006 and JME models demonstrated high accuracy at RMSE of 0.45 ℃. The KMA2016 model performed better in the simulation than the physical model (RMSE of 1.06 ℃) even though only two variables were used. In particular, the KMA2016 model demonstrated good performance in the central region of the Korean peninsula, including the military training centers (RMSE of 0.75 ℃). However, it was underestimated in the southern part of the peninsula. Its performance became worse except for the time occurring maximum temperature. Therefore, at the Automated Surface Observing System stations where solar radiation and wind speed data are available, the KMA2006 and JME models can outperform other models. In the military, school, and industrial sites where only air temperature and relative humidity are observed, we expect that the WBGT can be estimated within an error range of ±0.6 ℃ using the KMA2016 model.

show abstract

Section: Wbgt 추정모델unclassified

Evaluating the Accuracies of the WBGT Estimation Models and their Onsite Applicability in Korea

Lee¹,

Kim²,

Cho³

et al. 2019

J. Korean Soc. Hazard Mitig

View full text Add to dashboard Cite

show abstract

“…DDS has been used to obtain hourly WBGT for Japanese future climate (Kusaka et al 2012;Suzuki-Parker and Kusaka 2015), but no explicit assessments are performed for labor. A very recent work by Altinsoy and Yildirim (2014) used DDS output data for labor capacity estimates for Turkey but did not account for projection uncertainties in DDS as only one GCM was used.…”

Section: Introductionmentioning

confidence: 99%

Future projections of labor hours based on WBGT for Tokyo and Osaka, Japan, using multi-period ensemble dynamical downscale simulations

Suzuki-Parker

Kusaka

2015

Int J Biometeorol

View full text Add to dashboard Cite

Following the heatstroke prevention guideline by the Ministry of Health, Labor, and Welfare of Japan, "safe hours" for heavy and light labor are estimated based on hourly wet-bulb globe temperature (WBGT) obtained from the three-member ensemble multi-period (the 2000s, 2030s, 2050s, 2070s, and 2090s) climate projections using dynamical downscaling approach. Our target cities are Tokyo and Osaka, Japan. The results show that most of the current climate daytime hours are "light labor safe,", but these hours are projected to decrease by 30-40% by the end of the twenty-first century. A 60-80% reduction is projected for heavy labor hours, resulting in less than 2 hours available for safe performance of heavy labor. The number of "heavy labor restricted days" (days with minimum daytime WBGT exceeding the safe level threshold for heavy labor) is projected to increase from ~5 days in the 2000s to nearly two-thirds of the days in August in the 2090s.

show abstract

“…The estimation of metabolic rate, variations in skin temperature or skin dampness, the effects of air velocity, and the effects of clothing all limit the efficacy of the index. Nevertheless, several studies have used the WBGT index as a safety index for workers across various vocations [10][11][12]. If the WBGT values of the hot environment exceed the WBGT reference values, or if a more detailed analysis is required, then the ISO 7933 standard [3,4] proposes an analytical method of evaluating heat stress.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of occupation hot exposure in industrial workplaces in a subtropical country

Yang

Wei

Hong

2017

Int J Occup Med Environ Health

View full text Add to dashboard Cite

Objectives: The objective of this study has been to evaluate the occupational heat exposure of 12 workers at 5 plants in a subtropical country. Material and Methods: The heat stresses and strain on workers in 5 plants were assessed by the International Organization for Standardization (ISO) 7243 index (wet bulb globe temperature -WBGT) and the ISO 7933 index (maximum allowable exposure time -D lim ). Results: Results indicated that 42% of the subjects (5 workers) surpassed the WBGT limits. According to the D lim , 42% of the subjects could not continue working in the hot environments. The relationships between the various heat stress indices and the WBGT index were also correlated. However, further studies from different heat environments and more subjects should be performed. Conclusions: The sensitive dependence of skin temperature on meteorological and physiological indices for each subject was clearly observed. Obviously, the heart rate response to metabolic rate was much greater than that caused by environmental heat alone. The exponential relationship between workers' duration-limited exposure time, predicted by various estimated criteria, and WBGT were also found. Int J Occup Med Environ Health 2017;30(3):379-395

show abstract

Labor productivity losses over western Turkey in the twenty-first century as a result of alteration in WBGT

Cited by 27 publications

References 13 publications

Evaluating the Accuracies of the WBGT Estimation Models and their Onsite Applicability in Korea

Evaluating the Accuracies of the WBGT Estimation Models and their Onsite Applicability in Korea

Future projections of labor hours based on WBGT for Tokyo and Osaka, Japan, using multi-period ensemble dynamical downscale simulations

Evaluation of occupation hot exposure in industrial workplaces in a subtropical country

Contact Info

Product

Resources

About