Evaluation of Environmental Heat Exposure, Heat-related Symptoms, and Acute Physiological Changes among Farmers in Pasir Puteh and Bachok, Kelantan
DOI:
https://doi.org/10.11113/jest.v5n1.103Keywords:
heat exposure, physiological changes, blood pressure, body core temperature, farmersAbstract
Prolonged or intense exposure to heat can lead to a range of health effects. This study evaluated environmental heat exposure, heat-related symptoms, and acute physiological changes among 39 farmers in Kelantan, Malaysia. During the end of the monsoon season in February to Mac 2019, wet bulb globe temperature (WBGT) was collected in the farm environment to assess heat exposure. Blood pressure, heart rate, and body core temperature were measured pre-, mid and post-shift to measure the physiological response of farmers towards environmental heat. Sociodemographic, occupational information and heat-related symptoms that subjects had experienced were gathered using a questionnaire. The WBGT outdoor showed a high risk for heat stress and strain (> 28.0 oC) based on the American Conference of Governmental Industrial Hygiene (ACGIH) threshold limit values (TLVs). More than half (50%) of farmers reported heat-related symptoms including fatigue, lethargy, dizziness, rashes, and cramps. Significant physiological changes including heart rate, body temperature, and systolic blood pressure occurred across the work shift (p <0.05). However, no significant association (p>0.05) was found between the Acute Health Symptoms score (AHSS) with associated factors, thus no statistical model was further developed. In conclusion, farmers experienced significant psychological changes across the work shift. Preventive and control measures for heat stress are needed to reduce the risk of heat strain.
References
Zamanian, Z., Z.Sedaghat, M. Henehrezee, and F. Khajennasiri. 2017. Evaluation of environmental heat stress on Physiological Parameters. Journal of Environmental Science Engineer. 15: 24.
Centers for Disease Control and Prevention (2018). Heat Stress-Recommendation. Retrieved Feb 5, 2022, from https://www.cdc.gov/niosh/topics/heatstress/recommendations.html.
Xiang, J. 2014. Extreme heat and workers’ health in South Australia: association, perceptions, and adaptations in the workplace., (October) Jan 06 2022 from https://digital.library.adelaide.edu.au/dspace/handle/2440/90983.
Bethel, J. W. and R. Harger. 2014. Heat-related illness among Oregon farmworkers. International Journal of Environmental Research and Public Health, 11: 9, 92739285.doi:10.3390/ijerph110909273.
Malgoyre, A., Siracusa, J., Tardo-Dino, P.E., Farcia-Vicencio, S., Koulmann, N., Epstein, Y., Charlot, K. 2020. Four-month operational heat acclimatization positively affects the level of heat tolerance 6 months later. Scientific Reports, 10, 20260, 9
Amir, H. 2018. Heat stress and its association with acute physiological changes among rockmelon farmworkers in Perlis. Undergraduate thesis for Bachelor of Environmental and Occupational Health. Universiti Sains Malaysia.
Nurul, H., Shamsul B.M.T., Sharifah, I., and Ahmad, A. 2014. The evaluation of heat stress on steel mill workers through monitoring environmental and acute physiological changes. Advances in Environmental Biology. 8(15): 177-183.
Griethuijsen, R.A.L.F., Eijeck, M.W., Haste, H., Brok, P.J., Skinner, N.C., Mansour, N., Gencer, A.V., Boujaoude, S. (2015). Global patterns in students’ views of science and interest in science. Research in Science Education, 45(4): 581-603.
National Institute for Occupational Safety and Health. 1986. Occupational exposure to hot environments. Department of Health and Human Services, Report No. DHH86-113, Washington DC.
American College of Sports Medicine. 1987. Position stands on the prevention of thermal injuries during distance running. Medicine and Science Sports and Exercise, 19(5): 539-533.
TaniNet 2nd Report. 2000. Second Quarter, DASG Report. TaniNet Project, UKM-MTDC. Bangi, Selangor, Malaysia.
[12] Occupational Safety and Health Administration (US). OSHA Technical Manual. 1999. Available from:https://www.osha.gov/dts/osta/otm/otm_iii/otm_iii_4.html#iii:4_2 Accessed on 28th February 2020.
Accuweather.com (2019). Retrieved 4 May 2019 from https://www.accuweather.com/en/my/bachok/228429/marchweather/228429?onyr=3/1/219
Aeda, T.M, Aneko, S.K., Hta, M.O., Anaka, K.T., Asaki, A.S., and Ukushima, T.F. 2006. Risk factors for heat stroke among Japanese Forestry Workers. Journal of Occupational Health, 48(4), 223-229.
Boonruska, P., Maturachon, T., Kongtip, P., and Woskie, S. 2020. Heat stress, physiological response, and heat-related symptoms among Thai sugarcane workers. International Journal of Environmental Research and Public Health. 17(17): 6363; https://doi.org/10.3390/ijerph17176363.
Sadiq, L., Hashim, Z. and Osman, M. 2019. The impact of heat on health and productivity among maize farmers in a tropical climate area Journal of Environmental and Public Health. 2019,1- 7 https://doi.org/10.1155/2019/9896410.
Kern, P., Cramp, R.L., Franklin, C.E. 2015. Physiological responses of ectotherms to daily temperature variation. Journal of Environmental Biology, 218 (190): 3068-3076.
Kjellstorm, t. 2009. Climate change, direct heat exposure, health and well-being in low and middle-income countries. Global Health Action, 2: 10.3402/ghav2i0.1958.
Cabanac, A. and Guilllemette, M. (2001). Temperature and heart rate as stress indicators of handled common eider. Physiology & Behaviour, 74 (4-5): 475-479.
Shido, O.N. 1999. Core temperature and sweating onset in humans acclimatised to heat given at a fixed daily time. Journal of Agromedicine, 20(3): 349-359.
Afriyanto, D.F. dan Widajati, N. 2020. Analysis of work climate and the increase of blood pressure of construction workers in Pamekasan regency. Indian Journal of Forensic Medicine and Toxicology, 14(3): 1076-1080.
Loannou, L.G., Tsoutsoubi, L., Mantzios, K., Gkikas, G., Pii, J.F., Dinas, P.C., Notley, S.R., Kenny, G.P., Nybo, L., Flouris, A.D. 2021. The impacts of sun exposure on workers’ physiology and cognition: Multi-country evidence and interventions. International Journal of Environmental Research and Public Health, 18(14): 7698
Strom, G. 1960. Handbook of Physiology Section I: Neurophysiology 1173-1196. Washington (DC). Waverly Press.
Crandall, C. 2008. Heat Stress and baroreflex regulation of blood pressure. Medicine and Science in Sports and Exercise, 40(12): 2063-2070.
Shepard, R, 2000. Aging and productivity: some physiological issues. International Journal of Industrial Ergonomics. 25(5): 535-545.
Pandolf, K.B. 1991. Aging and heat tolerance at rest or during work. Experimental Aging Research, 17(3): 189-204.
Harshal, C.P., Nellore, M.R., Asim, S. 2006. Heat exposure effects among firefighters. Indian Journal of Occupational and Environmental Medicine. 10(3): 121-123.
Anna, M., Juhani, S., Krzysztof, S. 2004. Age-related thermal strain in men while wearing radiation protective clothing during short-term exercise in the heat International Journal of Occupational Safety and Ergonomics. 10(4): 361-367.
Jimenez, C., Melin, B., Koulmann, N., Allevard, A. M., Launay, J. C., Savourey, G. 1999) Plasma volume changes during and after acute variations of body hydration level in humans. European Journal of Applied Physiology and Occupational Physiology, 80(1): 1-8.
Inoue, Y., Shibasaki, M. 1996. Regional differences in age-related decrements of the cutaneous vascular and sweating responses to passive heating. European Journal of Applied Physiology and Occupational Physiology, 74(1-2): 78-84.
Wallace, R.F., Kriebel, D., Punnett, L. Wegman, D.H., Wenger, C.B., Gardner, J.W., Kark, J.A. 2006. Risk factors for recruit exertional heat illness by gender and training period. Aviation, Space Environmental Medicine, 77(4): 415-421.
Chumlea, W.C., Wisemandle, W., Gui, S.S., Siervogel, R.M. 2002. Relations between frame size and body composition and bone mineral status. American Journal of Clinical Nutrition. 75(6), 1012-1016.
Deurenberg, P., Deuremberg-Yap, M., Foo, L.F., Schmidt, G., Wang, J. 2003. Differences in body composition between Singapore Chinese, Beijing Chinese and Dutch children. European Journal of Clinical Nutrition, 57: 405-409.
Chan, A.P.C., Yi. Wi. 2016. Heat stress and it impacts on occupational health and performance. Indoor and Built Environment. 25(1): 3-5.
Amit, D. Dani, A., Itay, K., Yoav., C-S., Yuval, H. 2017.The effect of smoking and nicotine ingestion on exercise heat tolerance. Journal of Basic and Clinical Physiology Pharmacology. 28(2): 167-170.
Luginbuhl, R.C., Jackson, L.L., Castillo, D.N., Loringerm K.A.2008. Heat-related deaths among crops workers-United States, 1992-2006. MWWR Morbidity and Mortality Weekly Report. 57: 649-653.
Boylan, B., Brandt, V., Muehlbauer, J., Auslander, M., Spurlock, C., Finger, R. Nios, H, 1993. Green tobacco sickness in tobacco harvester-Kentucky-1992. MWWR Morbidity and Mortality Weekly Report. 42: 327-240.
Donoghue, A. M., Bates, G. P. 2000. The risk of heat exhaustion at a deep underground metalliferous mine in relation to body-mass index and predicted VO2 max. Occupational Medicine, 50(4): 259-263.
Hansen, A., Bi, P., Nitschke, M., Ryan, P., Pisaniello, D., Tucker, G. 2008. The effect of heat waves on mental health in a temperate Australian city. Environmental Health Perspectives, 116(10): 1369-1375.
Tawatsupa, B., Yiengprugsawan, V., Kjellstrom, T., Berecki-Gisolf, J., Seubsman, S. A., Sleigh, A. 2013. Association between heat stress and occupational injury among Thai workers: findings of the Thai Cohort Study. Industrial Health, 51(1): 34-46.
