Occupational Exposure to Nickel and Cobalt From Hairdressing Tools: A Cross-Sectional Study in 58 Danish Salons.

IF 4.1 1区医学 Q2 ALLERGY

Contact Dermatitis Pub Date : 2026-10-04 DOI:10.1111/cod.70261

Kian Karimian, Daniel Isufi, Ulrik Ahrensbøll-Friis, Jakob Ferløv Baselius Schwensen, Jeanne Duus Johansen, Mikkel Bak Jensen

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引用次数: 0

Abstract

Background: Hairdressers frequently perform wet work, which weakens the skin barrier. Repeated skin contact with metallic tools introduces an occupational allergen exposure. However, data on nickel and cobalt release from commonly handled cutting tools remain limited.

Objectives: To estimate nickel and cobalt spot-test positivity in hairdressing tools used in Danish hair salons.

Materials and methods: In this cross-sectional field study, 58 voluntarily participating Danish salons were visited from 1 March to 30 June 2026. Scissors, hair clippers and razors were each tested once for nickel with dimethylglyoxime and for cobalt with nitroso-R salt colorimetric spot tests.

Results: Among 266 tools (167 scissors, 95 hair clippers and 4 razors), 37 (13.9%) were positive to nickel and 18 (6.8%) to cobalt. Nickel positivity was 15.6% in scissors and 10.5% in hair clippers; cobalt positivity was 6.6% and 6.3%, respectively. At least one positive tool occurred in 22/58 (37.9%) salons for nickel and 12/58 (20.7%) for cobalt.

Conclusions: Nickel and cobalt release from commonly used hairdressing tools is a prevalent occupational hazard. These findings underscore the necessity of proactive preventive strategies, such as careful material selection and stricter regulatory oversight.

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来自美发工具的镍和钴的职业暴露：58个丹麦沙龙的横断面研究。

背景：理发师经常做湿工作，这会削弱皮肤屏障。皮肤反复接触金属工具会导致职业性过敏原暴露。然而，关于常用切削工具中镍和钴释放的数据仍然有限。目的：估计丹麦发廊使用的美发工具中镍和钴的点检阳性。材料和方法：在这项横断面实地研究中，我们于2026年3月1日至6月30日访问了58家自愿参与的丹麦沙龙。剪刀、理发器和剃须刀分别用二甲基乙氧肟和亚硝基r盐比色斑点法检测镍和钴。结果：266件工具（剪刀167件、理发钳95件、剃刀4件）中镍检出阳性37件（13.9%），钴检出阳性18件（6.8%）。剪刀中镍阳性率为15.6%，理发钳中为10.5%；钴正性分别为6.6%和6.3%。至少有一个阳性工具出现在22/58（37.9%）的镍沙龙和12/58（20.7%）的钴沙龙。结论：常用美发工具中镍、钴的释放是一种普遍存在的职业危害。这些发现强调了采取主动预防策略的必要性，例如仔细选择材料和更严格的监管监督。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Contact Dermatitis 医学-过敏

CiteScore

4.60

自引率

30.90%

发文量

227

审稿时长

4-8 weeks

期刊介绍： Contact Dermatitis is designed primarily as a journal for clinicians who are interested in various aspects of environmental dermatitis. This includes both allergic and irritant (toxic) types of contact dermatitis, occupational (industrial) dermatitis and consumers" dermatitis from such products as cosmetics and toiletries. The journal aims at promoting and maintaining communication among dermatologists, industrial physicians, allergists and clinical immunologists, as well as chemists and research workers involved in industry and the production of consumer goods. Papers are invited on clinical observations, diagnosis and methods of investigation of patients, therapeutic measures, organisation and legislation relating to the control of occupational and consumers".