Evaluation of the Effectiveness of Hygenall<sup>©</sup>Leadoff<sup>TM</sup>Foaming Soap in Reducing Lead on Workers’ Hands and the Uptake of Lead on Bridge Painting Projects

• 作者: Raymond Harbison
• 来源期刊: 职业病与环境医学(英文)
• 学科: 工学
• 关键词: Dermal Exposure Blood Lead Level Bridge Painting HANDWASHING
• 年，卷（期）: 2020,（4）
• 页码范围: 123-134
• 页数: 12页
• 分类号: TP3

摘要

Although considerable research has been conducted regarding airborne lead exposures during lead paint removal, little data has been collected measuring the lead concentration on workers’ hands in the construction industry. As a result, there are gaps in our understanding of the effectiveness of a standard work practice control (handwashing) in the prevention and control of elevated blood lead levels (BLLs) in the workplace. The primary objective of this study was to assess if a National Institute for Occupational Safety and Health (NIOSH) formulation intended to remove lead from skin (Hygenall^{<span style="white-space:nowrap;">&#169; </span>}Leadoff^TM Foaming Soap) is more effective than a commonly used soap in the industrial painting industry (Zep Cherry Bomb Soap) in reducing the concentration of lead on workers’ hands after exposure. A secondary aim was to assess if using Leadoff^TM Foaming Soap during handwashing reduces worker uptake of lead on bridge painting projects. We evaluated hand wipe, air sample and blood lead level data collected by two industrial bridge painting contractors. Airborne exposures ranged from 350 μg/m³ to 19,700 μg/m³. The geometric mean lead concentration remaining on workers’ hands after using Zep Cherry Bomb Soap was 77 μg per hand wipe compared with 61 μg per hand wipe after use of Leadoff^TM Foaming Soap for all work classifications. The geometric lead concentration on workers’ hands decreased by 16 μg/hand wipe for all work classifications combined after using Leadoff^TM Foaming Soap—a decrease of 21%. The use of Hygenall Leadoff^TM Foaming Soap reduced the maximum lead concentration on workers’ hands by 85%. The geometric mean BLL for all work classifications was 12.1 μg/dl before the use of Leadoff^TM. After two months of airborne exposure and use of Leadoff^TM Foaming Soap at breaks and at the end of the workday, the geometric mean BLL for all work classifi