Real-Time Dust Monitoring in Occupational Environments: A Case Study on Using Low-Cost Dust Monitors for Enhanced Data Collection and Analysis

IF 1.5 4区 工程技术 Q3 METALLURGY & METALLURGICAL ENGINEERING Mining, Metallurgy & Exploration Pub Date : 2024-07-11 DOI:10.1007/s42461-024-01039-6
Cody Wolfe, Emanuele Cauda, Milan Yekich, Justin Patts
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Abstract

A worker’s personal exposure to respirable dust in occupational environments has traditionally been monitored using established methodologies which entail the collection of an 8-h representative sample that is sent away for laboratory analysis. While these methods are very accurate, they only provide information on the average exposure during a specific time period, generally a worker’s shift. The availability of relatively inexpensive aerosol sensors can allow researchers and practitioners to generate real-time data with unprecedented spatial and temporal granularity. Low-cost dust monitors (LCDM) were developed and marketed for air pollution monitoring and are mostly being used to help communities understand their local and even hyper-local air quality. Most of these integrated sensing packages cost less than $300 per unit, in contrast to wearable or area dust monitors specifically built for mining applications which have been around for decades but still average around $5000 each. At the National Institute for Occupational Safety and Health (NIOSH), we are leveraging the power of high-volume data collection from networks of LCDM to establish baseline respirable hazard levels and to monitor for changes on a seasonal basis as well as following any application of control technologies. We have seen the effective use and advantages of monitoring live data before, during, and after events like shift changes, operational changes, ventilation upgrades, adverse weather events, and machine maintenance. However, many factors have prevented a systematic adoption of LCDMs for exposure monitoring: concern for their analytical performance, the complexity of use, and lack of understanding of their value are some factors. This contribution outlines a 1-year case study at a mine in Wisconsin, USA, covering the installation, maintenance, data visualizations, and collaboration between NIOSH researchers and the industrial hygiene professionals at the mine.

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职业环境中的实时粉尘监测:使用低成本粉尘监测仪加强数据收集和分析的案例研究
工人个人在职业环境中接触可吸入粉尘的情况历来都是通过既定方法进行监测的,这种方法需要收集 8 小时的代表性样本,然后送去进行实验室分析。虽然这些方法非常准确,但它们只能提供特定时间段(通常是工人的轮班时间)内的平均暴露量信息。相对便宜的气溶胶传感器的出现,可以让研究人员和从业人员生成具有前所未有的空间和时间粒度的实时数据。低成本粉尘监测仪(LCDM)是为空气污染监测而开发和销售的,主要用于帮助社区了解当地甚至超当地的空气质量。这些集成传感包的单价大多低于 300 美元,相比之下,专为采矿应用而设计的可穿戴式或区域粉尘监测仪已有几十年的历史,但平均单价仍在 5000 美元左右。在美国国家职业安全与健康研究所(NIOSH),我们正在利用 LCDM 网络的大量数据收集功能来确定基准可吸入危害水平,并监测季节性变化以及任何控制技术应用后的变化。我们已经看到了在换班、操作变更、通风升级、恶劣天气事件和机器维护等事件发生之前、期间和之后对实时数据进行监控的有效性和优势。然而,许多因素阻碍了 LCDM 在暴露监测中的系统化应用:对其分析性能的担忧、使用的复杂性以及对其价值缺乏了解,都是其中的一些因素。本文概述了在美国威斯康星州一个矿山进行的为期一年的案例研究,内容包括安装、维护、数据可视化以及 NIOSH 研究人员与矿山工业卫生专业人员之间的合作。
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来源期刊
Mining, Metallurgy & Exploration
Mining, Metallurgy & Exploration Materials Science-Materials Chemistry
CiteScore
3.50
自引率
10.50%
发文量
177
期刊介绍: The aim of this international peer-reviewed journal of the Society for Mining, Metallurgy & Exploration (SME) is to provide a broad-based forum for the exchange of real-world and theoretical knowledge from academia, government and industry that is pertinent to mining, mineral/metallurgical processing, exploration and other fields served by the Society. The journal publishes high-quality original research publications, in-depth special review articles, reviews of state-of-the-art and innovative technologies and industry methodologies, communications of work of topical and emerging interest, and other works that enhance understanding on both the fundamental and practical levels.
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