Transepidermal water loss and skin capacitance alterations among workers in an ultra-low humidity environment

Chou, Tzu-Chieh; Lin, Kuen-Huei; Wang, Shih-Min; Lee, Chia-Wei; Su, Shih‐Bin; Shih, Tung‐Sheng; Chang, Ho-Yuan

doi:10.1007/s00403-005-0541-4

Cited by 35 publications

(38 citation statements)

References 16 publications

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“…Studies on health effects of ultra-low environmental humidity (<5%) are limited but have generally observed adverse effects on the skin [6][7][8][9] . There are relatively more studies on the effects of RH in the 5% to 30% range, and they have generally found skin effects as well, especially in people with pre-existing atopic eczema [12][13][14][15][16][17][18] .…”

Section: Discussionmentioning

confidence: 99%

“…Many clean room workers even reduce their water intake in order to minimize the need to go the bathroom at work [1][2][3] . Previous studies found working in environments with ultra-low humidity (relative humidity [RH]=1.5%) may cause skin symptoms, changes in skin functions, and even disorders such as xerotic eczema [4][5][6][7][8] . A study in Japan on workers working in environments with very low humidity also observed high prevalence of atopic dermatitis and skin dryness 9) .…”

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confidence: 99%

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Higher Prevalence of Dry Symptoms in Skin, Eyes, Nose and Throat among Workers in Clean Rooms with Moderate Humidity

Wang

Tai

et al. 2009

Journal of Occupational Health

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Higher Prevalence of Dry Symptoms in Skin, Eyes, Nose and Throat among Workers inClean Rooms with Moderate Humidity: Shih-Bin SU, e t a l . D e p a r t m e n t o f E n v i r o n m e n t a l a n d Occupational Health, College of Medicine, National Cheng Kung University, Taiwan-Objective: To determine whether working under relative humidity (RH) around 55 ± 5% may lead to dry symptoms among workers in tropical regions. Methods: We recruited 3,154 Taiwanese workers who had no history of skin diseases and compared dry symptoms between clean room workers (RH around 55 ± 5%) and other workers (RH around 65 ± 5%). Results: Clean room workers had higher prevalences of dry symptoms of the eye (odds ratio [OR]=1.62, 95% confidence interval [CI]: 1.40 to 1.86), nose and throat (OR=2.15, 95% CI: 1.66 to 2.79), and skin (OR=1.46, 95% CI: 1.23 to 1.73). In clean room workers, however, dry skin symptoms affected the palms (OR=1.72, 95% CI: 1.24 to 2.39), which are covered by gloves, more frequently than the face (OR=0.65, 95% CI: 0.45 to 0.94), which is exposed to the room air. We found working in clean rooms (adjusted OR [AOR]=1.38, 95% CI: 1.08 to 1.77), 24 to 30 yr of age (AOR=0.78, 95% CI: 0.62 to 0.99), family history of atopic diseases (AOR=1.75, 95% CI: 1.37 to 2.25), and skin moisturizer use (AOR=1.64, 95% CI: 1.30 to 2.06) were independent predictors of skin symptoms. In addition, working in clean rooms was an independent predictor of dry eye (AOR=1.30, 95% CI: 1.06 to 1.60) and dry nose and throat (AOR=1.70, 95% CI: 1.28 to 2.26) symptoms. Conclusions: Field StudyWhereas the humidity in such working environments is not very low, for workers living in a high humidity environment, the relatively low humidity may still cause dry symptoms of the eye, nose, and throat. (J Occup Health 2009; 51: 364-369)

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Higher Prevalence of Dry Symptoms in Skin, Eyes, Nose and Throat among Workers in Clean Rooms with Moderate Humidity

Wang

Tai

et al. 2009

Journal of Occupational Health

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“…A majority of studies investigated skin dryness in offices and workplaces (Reinikainen et al, 1991;Nordström et al, 1994;Reinikainen and Jaakkola, 2003;Chou et al, 2005;Chou et al, 2007), with a few laboratory studies conducted in environmental chambers (Sunwoo et al, 2006a;Wyon et al, 2006). This literature review focused on healthy subjects without underlying conditions such as eczema (Eberlein-König et al, 1996).…”

Section: Skin Drynessmentioning

confidence: 99%

Update of the scientific evidence for specifying lower limit relative humidity levels for comfort, health, and indoor environmental quality in occupied spaces (RP-1630)

Derby

Hamehkasi

Eckels

et al. 2016

Science and Technology for the Built Environment

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Nearly 600 papers were located in citation and keyword searches regarding the effects of humidity on comfort, health, and indoor environmental quality (IEQ). Of these, around 70 papers reported the effects of low humidity (RH≤40%) and were analyzed in detail. Information in some categories was well chronicled, while other categories had significant knowledge gaps.Low humidity decreased house dust mite allergens. Due to different envelopes, generalizations could not be made for all bacteria and viruses. However, lower humidity increased virus survival for influenza. For comfort, low humidity had little effect on thermal comfort, but skin dryness, eye irritation, and static electricity increased as humidity decreased. For IEQ, low humidity had non-uniform effects on volatile organic compound (VOC) emissions and perceived indoor air quality. Across many low humidity studies, ventilation rates and exposure times were noted as confounding variables. A majority of studies that used human subjects utilized exposure times of three hours or less with adult subjects; few studies used children, adolescents, or elderly subjects.

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“…The most commonly studied aspect of extrinsic aging is the exposure of skin to ultraviolet radiation which causes skin damage and erythema by creating reactive oxygen species and DNA damage [1]. However, various other extrinsic factors exist including smoking, alcohol consumption, ozone, climate, and geography; for example, changes in skin have been noted at extremely low humidity (relatively humidity [RH] <1.5%) [2] and high altitude (>2900 m) [3].…”

Section: Introductionmentioning

confidence: 99%

Differences between Cheeks and Dorsal Hands Skin Properties during Skiing in a Cold and Windy Environment

Jang¹,

Choi²,

Han³

et al. 2017

JCDSA

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Background/Purpose: The skin protects against external factors and this skin function can be affected by environmental conditions, including low temperature, low humidity, and high altitude. Therefore, it is important to study the relationship between the environment and the skin. The purpose of this study is to determine how the skin barrier functions change at low temperatures. Methods: This study was performed at a Korean ski resort on January 2015 and evaluated 10 subjects skin condition during skiing. Skin properties were examined at 2 sites (cheeks and dorsal hands) and four time points (indoor; baseline, outdoor; after first skiing and after second skiing, indoor; after taking a shower). Results: The skin hydration on the cheek decreased after the second skiing session and the erythema decreased only after the first skiing while this value on dorsal hand was not changed by skiing. The brightness and yellowness of cheek skin increased and redness decreased therefore, skin color became pale during skiing. The extensibility of cheeks and dorsal hands decreased after skiing. We found positive correlation between skin temperature and redness (r 2 = 0.707, p < 0.000). Also the skin properties changed according to ambient temperature. The cheek skin temperature, erythema, redness and extensibility increased when people moved from outdoor to indoor while skin brightness and yellowness decreased. The skin hydration on both cheeks and dorsal hands and the skin properties except skin temperature of dorsal hands didn't change significantly. Conclusions: Low temperatures can affect human skin color so that the skin color becomes pale because capillary blood vessels shrink when skin is exposed to cold environment. The cheek skin tends to change easily than dorsal hand during ambient temperature change.

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Transepidermal water loss and skin capacitance alterations among workers in an ultra-low humidity environment

Cited by 35 publications

References 16 publications

Higher Prevalence of Dry Symptoms in Skin, Eyes, Nose and Throat among Workers in Clean Rooms with Moderate Humidity

Higher Prevalence of Dry Symptoms in Skin, Eyes, Nose and Throat among Workers in Clean Rooms with Moderate Humidity

Update of the scientific evidence for specifying lower limit relative humidity levels for comfort, health, and indoor environmental quality in occupied spaces (RP-1630)

Differences between Cheeks and Dorsal Hands Skin Properties during Skiing in a Cold and Windy Environment

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