Halkier-Sørensen L, Thestrup-Pedersen K
Department of Dermatology, University of Aarhus, Marselisborg Hospital, Denmark.
Contact Dermatitis. 1991 May;24(5):345-55. doi: 10.1111/j.1600-0536.1991.tb01749.x.
A field study among workers in the fish processing industry (n = 143) was performed to obtain information about skin surface temperature, transepidermal water loss (TEWL), and electrical capacitance and their relationships during work. The skin temperature, TEWL and electrical capacitance were measured on the fingers, hands and forearms. A linear positive relation was found between the temperature and TEWL (in all measured areas), a linear negative relation between the temperature and capacitance (fingers and palms), and a linear negative relation between the capacitance and TEWL (fingers). The results on the fingers among workers in the fish processing industry were compared with results among metal workers (n = 52), cleaners (n = 30), gut cleaners (n = 25), nurses (n = 16), office workers with indoor climate syndrome (n = 20) and normal controls (n = 29). A linear positive relation was found between the respective temperature-TEWL values and a linear negative relation between the respective temperature-capacitance values in the various groups. Furthermore the slope of the temperature-TEWL relations was identical in all groups. Therefore, differences in TEWL levels (comparison at the same temperature) between the respective groups and controls and between the various groups might indicate damage to the skin barrier caused by contact with different irritants and chemicals. However, differences in environment-related variables in the various occupations might also affect TEWL levels. This field study demonstrates, from a practical point of view, how the skin temperature affects TEWL in the various occupations and, as a new point, how sensitive capacitance is to changes in skin temperature. Seasonal variation in TEWL and capacitance was demonstrated among workers in the fish processing industry, with a low TEWL and a high capacitance during summer when the workload is lower.
对鱼类加工行业的143名工人进行了一项现场研究，以获取工作期间皮肤表面温度、经表皮水分流失（TEWL）、电容及其相互关系的信息。在手指、手部和前臂测量皮肤温度、TEWL和电容。发现温度与TEWL之间存在线性正相关（在所有测量区域），温度与电容之间存在线性负相关（手指和手掌），电容与TEWL之间存在线性负相关（手指）。将鱼类加工行业工人手指的结果与金属工人（n = 52）、清洁工（n = 30）、内脏清洁工（n = 25）、护士（n = 16）、患有室内气候综合征的办公室工作人员（n = 20）和正常对照组（n = 29）的结果进行了比较。在各个组中，相应的温度-TEWL值之间存在线性正相关，相应的温度-电容值之间存在线性负相关。此外，所有组中温度-TEWL关系的斜率相同。因此，各实验组与对照组之间以及各实验组之间在TEWL水平上的差异（在相同温度下进行比较）可能表明接触不同刺激物和化学物质会导致皮肤屏障受损。然而，不同职业中与环境相关的变量差异也可能影响TEWL水平。从实际角度来看，这项现场研究表明了皮肤温度如何影响不同职业中的TEWL，并且作为一个新的要点，表明了电容对皮肤温度变化的敏感程度。在鱼类加工行业的工人中发现了TEWL和电容的季节性变化，夏季工作量较低时TEWL较低而电容较高。
