Personal indium exposure concentration in respirable dusts and serum indium level

Satoko Iwasawa; Makiko Nakano; Hiroyuki Miyauchi; Shigeru Tanaka; Yaeko Kawasumi; Ichiro Higashikubo; Akiyo Tanaka; Miyuki Hirata; Kazuyuki Omae

doi:10.2486/indhealth.2016-0015

Personal indium exposure concentration in respirable dusts and serum indium level

Satoko Iwasawa, Makiko Nakano, Hiroyuki Miyauchi, Shigeru Tanaka, Yaeko Kawasumi, Ichiro Higashikubo, Akiyo Tanaka, Miyuki Hirata, Kazuyuki Omae

Department of Preventive Medicine and Public Health

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The aim of this study was to assess the relationship between indium exposure concentration in the respirable dust fraction (In-E) and indium in serum (In-S) in workers. Methods: A total of 39 workers were studied. The study subjects were categorized into 3 groups, namely, smelting workers (n=7), ITO workers (n=6) in an ITO grinding plant, and other workers (n=26). In-E and In-S ranged from 0.004–24.0 μg/m³ and 0.1–8.50 μg/L, respectively. The simple regression equation was log(In-S)=0.322×log(In-E)−0.443. The simple correlation coefficients for the smelting workers, ITO workers and other workers were 0.489, 0.812 and 0.163, respectively. The differences in the relationships among the three groups suggest that In-S may vary with the chemical form to which the workers were exposed. In-E and In-S seem to be positively correlated. The correlation coefficient was higher for both smelting and ITO workers than for other workers.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Industrial Health
Volume	55
Issue number	1
DOIs	https://doi.org/10.2486/indhealth.2016-0015
Publication status	Published - 2017

Keywords

Biological monitoring
Indium
Indium in serum
Indium-tin oxide target plate (ITO)
Personal respirable dust
Smelting worker

ASJC Scopus subject areas

Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2486/indhealth.2016-0015

Cite this

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title = "Personal indium exposure concentration in respirable dusts and serum indium level",

abstract = "The aim of this study was to assess the relationship between indium exposure concentration in the respirable dust fraction (In-E) and indium in serum (In-S) in workers. Methods: A total of 39 workers were studied. The study subjects were categorized into 3 groups, namely, smelting workers (n=7), ITO workers (n=6) in an ITO grinding plant, and other workers (n=26). In-E and In-S ranged from 0.004–24.0 μg/m3 and 0.1–8.50 μg/L, respectively. The simple regression equation was log(In-S)=0.322×log(In-E)−0.443. The simple correlation coefficients for the smelting workers, ITO workers and other workers were 0.489, 0.812 and 0.163, respectively. The differences in the relationships among the three groups suggest that In-S may vary with the chemical form to which the workers were exposed. In-E and In-S seem to be positively correlated. The correlation coefficient was higher for both smelting and ITO workers than for other workers.",

keywords = "Biological monitoring, Indium, Indium in serum, Indium-tin oxide target plate (ITO), Personal respirable dust, Smelting worker",

author = "Satoko Iwasawa and Makiko Nakano and Hiroyuki Miyauchi and Shigeru Tanaka and Yaeko Kawasumi and Ichiro Higashikubo and Akiyo Tanaka and Miyuki Hirata and Kazuyuki Omae",

note = "Funding Information: This study was supported by Grants-in-aid for Scientific Research (Project No. 24590758 and 26860443) from the Ministry of Education, Culture, Sports, Science and Technology of Japan (2012-13 and 2014-2015). Publisher Copyright: {\textcopyright} 2017 National Institute of Occupational Safety and Health.",

year = "2017",

doi = "10.2486/indhealth.2016-0015",

language = "English",

volume = "55",

pages = "87--90",

journal = "Industrial Health",

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T1 - Personal indium exposure concentration in respirable dusts and serum indium level

AU - Iwasawa, Satoko

AU - Nakano, Makiko

AU - Miyauchi, Hiroyuki

AU - Tanaka, Shigeru

AU - Kawasumi, Yaeko

AU - Higashikubo, Ichiro

AU - Tanaka, Akiyo

AU - Hirata, Miyuki

AU - Omae, Kazuyuki

N1 - Funding Information: This study was supported by Grants-in-aid for Scientific Research (Project No. 24590758 and 26860443) from the Ministry of Education, Culture, Sports, Science and Technology of Japan (2012-13 and 2014-2015). Publisher Copyright: © 2017 National Institute of Occupational Safety and Health.

PY - 2017

Y1 - 2017

N2 - The aim of this study was to assess the relationship between indium exposure concentration in the respirable dust fraction (In-E) and indium in serum (In-S) in workers. Methods: A total of 39 workers were studied. The study subjects were categorized into 3 groups, namely, smelting workers (n=7), ITO workers (n=6) in an ITO grinding plant, and other workers (n=26). In-E and In-S ranged from 0.004–24.0 μg/m3 and 0.1–8.50 μg/L, respectively. The simple regression equation was log(In-S)=0.322×log(In-E)−0.443. The simple correlation coefficients for the smelting workers, ITO workers and other workers were 0.489, 0.812 and 0.163, respectively. The differences in the relationships among the three groups suggest that In-S may vary with the chemical form to which the workers were exposed. In-E and In-S seem to be positively correlated. The correlation coefficient was higher for both smelting and ITO workers than for other workers.

AB - The aim of this study was to assess the relationship between indium exposure concentration in the respirable dust fraction (In-E) and indium in serum (In-S) in workers. Methods: A total of 39 workers were studied. The study subjects were categorized into 3 groups, namely, smelting workers (n=7), ITO workers (n=6) in an ITO grinding plant, and other workers (n=26). In-E and In-S ranged from 0.004–24.0 μg/m3 and 0.1–8.50 μg/L, respectively. The simple regression equation was log(In-S)=0.322×log(In-E)−0.443. The simple correlation coefficients for the smelting workers, ITO workers and other workers were 0.489, 0.812 and 0.163, respectively. The differences in the relationships among the three groups suggest that In-S may vary with the chemical form to which the workers were exposed. In-E and In-S seem to be positively correlated. The correlation coefficient was higher for both smelting and ITO workers than for other workers.

KW - Biological monitoring

KW - Indium

KW - Indium in serum

KW - Indium-tin oxide target plate (ITO)

KW - Personal respirable dust

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Personal indium exposure concentration in respirable dusts and serum indium level

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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