Work Tasks as Determinants of Respirable and Inhalable Indium Exposure among Workers at an Indium–Tin Oxide Production and Reclamation Facility.
Increased global demand for touch screens, photovoltaics, and optoelectronics has resulted in an increase in the production of indium–tin oxide (ITO). Occupational exposure to indium compounds is associated with the development of indium lung disease. Although many previous epidemiologic investigati...
| Publicado en: | Annals of Work Exposures & Health Vol. 64; no. 2; pp. 175 - 185 |
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| Autores principales: | , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Mar2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=141923659&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 141923659 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23987308 KJ1E jtl: Annals of Work Exposures & Health issn: 23987308 maglogo: N pubinfo: dt: Mar2020 vid: 64 iid: 2 pid: 622 pub: Oxford University Press / USA artinfo: ui: 141923659 141923659 141923659 10.1093/annweh/wxz091 141923659 ppf: 175 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Work Tasks as Determinants of Respirable and Inhalable Indium Exposure among Workers at an Indium–Tin Oxide Production and Reclamation Facility. aug: au: Blackley, Brie Hawley Cummings, Kristin J Stanton, Marcia Stefaniak, Aleksandr B Gibbs, Jenna L Park, Ji Young Harvey, R Reid Virji, M Abbas affil: Respiratory Health Division, National Institute for Occupational Safety and Health, CDC , Morgantown, WV, USA sug: subj: Indium Adverse Effects Work Environment Task Performance and Analysis Inhalation Exposure Occupational Exposure Manufacturing Industry Human Descriptive Statistics Personal Protective Equipment Utilization Diaries Models, Statistical Spearman's Rank Correlation Coefficient ab: Increased global demand for touch screens, photovoltaics, and optoelectronics has resulted in an increase in the production of indium–tin oxide (ITO). Occupational exposure to indium compounds is associated with the development of indium lung disease. Although many previous epidemiologic investigations highlight an excess of lung abnormalities in workplaces where ITO is produced, few assessments of occupational exposure to respirable and inhalable indium are reported to date. The objective of this study was to identify the determinants of respirable and inhalable indium at an ITO production facility to target exposure interventions. In 2012 and 2014, we conducted exposure assessments at an ITO production facility and collected full-shift personal respirable (n = 159) and inhalable (n = 57) indium samples. We also observed workers and recorded information on task duration and location, materials used, and use of personal protective equipment (PPE). Tasks (n = 121) recorded in task diaries were categorized into 40 similar task groups using the Advanced REACH Tool and process-related information. Mixed-effects models were fit separately for log-transformed respirable and inhalable indium, with random effect of subject and fixed effects of task groups. Overall, respirable and inhalable indium measurements ranged from 0.1 to 796.6 µg m−3 and 1.6 to 10 585.7 µg m−3, respectively, and were highly correlated with Spearman correlation coefficient of 0.90. The final model for respirable indium explained 36.3% of total variance and identified sanding, powder transfer tasks in reclaim, powder transfer tasks in refinery, handling indium materials, and liquid transfer tasks in ITO production as tasks associated with increased respirable indium exposure. The final model for inhalable indium explained 24.6% of total variance and included powder transfer tasks in ITO production, cleaning cylinder or tile, and handling indium material tasks. Tasks identified as strong predictors of full-shift exposure to respirable and inhalable indium can guide the use of engineering, administrative, and PPE controls designed to mitigate occupational exposure to indium. Moreover, since the tasks were aligned with REACH activities, results from this study can also be used to inform REACH activity scenarios. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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