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Thermal comfort sustained by cold protective clothing in Arctic open-pit mining: a thermal manikin and questionnaire study
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. Umeå University, Arctic Research Centre at Umeå University. (Arcum)
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2017 (English)In: Industrial Health, ISSN 0019-8366, E-ISSN 1880-8026, Vol. 55, no 6, p. 537-548Article in journal (Refereed) Published
Abstract [en]

Workers in the Arctic open-pit mines are exposed to harsh weather conditions. Employers are required to provide protective clothing for workers. This can be the outer layer, but sometimes also inner or middle layers are provided. This study aimed to determine how the Arctic open-pit miners protect themselves against cold and the sufficiency, and the selection criteria of the garments. Workers' cold experiences and the clothing in four Arctic open-pit mines in Finland, Sweden, Norway and Russia were evaluated by a questionnaire (n=1323). Basic thermal insulation (Icl) of the reported clothing was estimated (ISO 9920). The Icl of clothing from the mines were also measured by thermal manikin (standing/walking) in 0.3 and 4.0 m/s wind. The questionnaire showed that the Icl of the selected clothing was on average 1.2 and 1.5 clo in mild (-5 to +5°C) and dry cold (-20 to -10°C) conditions, respectively. The Icl of the clothing measured by thermal manikin was 1.9w2.3 clo. The results show that the Arctic open-pit miners' selected their clothing based on occupational (time outdoors), environmental (temperature, wind, moisture) and individual factors (cold sensitivity, general health). However, the selected clothing was not sufficient to prevent cooling completely at ambient temperatures below -10°C.

Place, publisher, year, edition, pages
National Institute of Occupational Safety and Health , 2017. Vol. 55, no 6, p. 537-548
Keyword [en]
Arctic mining, cold, protective clothing, questionnaire study, thermal manikin, thermal sensations
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:umu:diva-140818DOI: 10.2486/indhealth.2017-0154ISI: 000417007500008PubMedID: 29021416OAI: oai:DiVA.org:umu-140818DiVA, id: diva2:1150614
Note

Special issue: New development of research on personal protective equipment (PPE) for occupational safety and health

Available from: 2017-10-19 Created: 2017-10-19 Last updated: 2018-01-22Bibliographically approved

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Wahlström, Jens
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Occupational and Environmental MedicineArctic Research Centre at Umeå University
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