Evaluation of personal exposure of workers to indium concentrations in total dust and its respirable fraction at three Japanese indium plants
| العنوان: | Evaluation of personal exposure of workers to indium concentrations in total dust and its respirable fraction at three Japanese indium plants |
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| المؤلفون: | Hidesuke Shimizu, Yoko Eitaki, Kenji Ando, Akihiro Araki, Ichiro Higashikubo, Haruhiko Sakurai, Heihachiro Arito |
| المصدر: | Industrial Health |
| بيانات النشر: | National Institute of Industrial Health, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Personal sampling, Short Communication, Health, Toxicology and Mutagenesis, chemistry.chemical_element, Fraction (chemistry), Indium, 03 medical and health sciences, 0302 clinical medicine, Japan, Occupational Exposure, Humans, 0501 psychology and cognitive sciences, Occupational exposure limit, Threshold Limit Values, Respirable fraction, Occupational Health, 050107 human factors, Total particulate matter, Inhalation Exposure, Cut off value, digestive, oral, and skin physiology, 05 social sciences, Public Health, Environmental and Occupational Health, Dust, Particulates, 030210 environmental & occupational health, chemistry, Total dust, Environmental chemistry, Metallurgy, Environmental science, Occupational exposure, Particulate matter, Arithmetic mean |
| الوصف: | This study aimed to evaluate personal exposures of 27 workers to indium compounds as “total” dust and its “respirable” fraction in their breathing zones at 3 Japanese indium plants. Eight-hour time-weighted average (TWA) indium concentrations of personal exposure to dust collected in sampling periods of 6 h or longer were determined by ICP-MS. The arithmetic means of exposure concentrations were 0.095 mg indium (In)/m3, when sampled as total dust, and 0.059 mg In/m3, as respirable fraction. ACGIH’s TLV-TWA of 0.1 mg In/m3 for total particulate matter and Acceptable Exposure Concentration Limit (AECL) of 3×10−4 mg In/m3 for the respirable fraction notified by the Japanese Ministry of Health, Labour and Welfare were used to evaluate the exposure concentrations. Twenty-five out of 27 workers were exposed to indium concentrations lower than TLV-TWA, while all of the workers were exposed to the indium concentrations higher than AECL. We noted that there was a large discrepancy between the two occupational exposure limits referred to in this report, and these differences were attributed to the sampling strategies and health effects used as the prevention targets. Carcinogenicity of the respirable fraction of indium-containing particulates was considered in setting AECL, whereas it was not in ACGIH’s TLV. |
| تدمد: | 1880-8026 0019-8366 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d37e7e0b31e8a67ef7f5c96f7c05009Test https://doi.org/10.2486/indhealth.2018-0116Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8d37e7e0b31e8a67ef7f5c96f7c05009 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18808026 00198366 |
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