부산대학교 도서관

The body temperature after walking in a cold environment may appear lower than when it is measured under stable indoor conditions. In order to improve the accuracy of detecting abnormal body temperature for COVID-19 pandemic situation, it is important to measure the accurate body temperature of subjects who enter the buildings. To do this, the body temperatures of 19 subjects were measured and analyzed immediately after walking for 15 minutes in a cold environment (7℃) and at rest in a climate chamber (20 ℃) for 15 minutes. As a result of measuring the subject's eardrum temperature with an eardrum thermometer, it was found that 36.3℃ (S.D. 0.50℃) immediately after walking in a cold environment, 36.8℃ (S.D. 0.42℃) after stabilization, and a difference of 0.5℃. As a result of measuring the subject's forehead temperature with non-contact infrared thermometers A, B, and C, immediately after walking in a cold environment, they were 36.3℃ (S.D. 0.27℃), 36.3℃ (S.D. 0.27℃), and 36.2℃ (S.D. 0.33℃), respectively, and after resting, 36.7℃, (S.D. 0.27℃), 36.6℃ (S.D. 0.20℃), 36.8℃ (S.D. 0.41℃), respectively, the difference was 0.4℃. As a result of measuring the subject's forehead skin temperature with a contact skin thermometer, it was found to be 31.0℃ (S.D. 1.57℃) immediately after walking in a cold environment, 33.2℃ (S.D. 1.43℃) after stabilization, and a difference of 2.2℃. The difference between the forehead contact skin temperature and the eardrum temperature was 5.3℃ immediately after walking in a cold environment and 3.6℃ after stabilization. In conclusion, it is thought that some correction is necessary when discriminating abnormal body temperature with a non-contact infrared thermometer in winter.