Guidelines for personal exposure monitoring of chemicals: Part I

Hashimoto, Haruo; Yamada, Kenichi; Hori, Hajime; Kumagai, Shinji; Murata, Masaru; Nagoya, Toshio; Nakahara, Hirohiko; Mochida, Nobuyuki

doi:10.1539/joh.17-0202-ra

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…There were also 19 (22%) workers out of the 86 whose indium concentrations exceeded the AL, suggesting that certain provisions must be initiated at their workplaces, such as consecutive exposure measurements, training of employees, and medical surveillance, according to the NIOSH Occupational Exposure Sampling Strategy Manual 9 ) . It has been reported that the condition TLV<X 95 can be used as a definition of “control measures required” 9 , 10 , 11 ) . By this definition, eight of the eleven indium plants required control measures, while the other 3 plants were evaluated as not requiring control measures.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to conventional statistical analyses, the upper 95th percentile of the log-normal distribution (X 95 ) was calculated using to the following equation: log(X 95 ) = log(GM) + 1.65 × log(GSD), where GM and GSD are the geometric mean and geometric standard deviation, respectively. The condition “TLV<X 95 ” was used to define “control measures required” in the workplace, an unacceptable exposure in accordance with the concept of exposure risk defined by the NIOSH Occupational Exposure Sampling Strategy Manual 9 ) , Bullock and Ignacio 10 ) , and Hashimoto et al 11 ) . We also compared the indium concentrations of individual workers with the Action Level (AL) 9 ) , which is defined by NIOSH as one-half of the REL (0.05 mg In/m 3 ).…”

Section: Methodsmentioning

confidence: 99%

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Quantitative assessment of occupational exposure to total indium dust in Japanese indium plants

et al. 2018

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This study quantitatively assessed personal exposure of 86 workers to indium compounds as total dust at 11 Japanese indium plants. The personal exposures to indium concentrations in the breathing zone during an 8 h work-shift were determined by ICP-MS. The arithmetic mean indium concentration of all the workers was 0.098 mg Indium (In)/m3, with individual values ranging from 0.0001 to 1.421 mg In/m3. There were 11 workers whose exposure to indium concentrations exceeded the American Conference of Governmental Industrial Hygienists’ Threshold Limit Value-Time Weighted Average (TLV-TWA) of 0.1 mg In/m3. Based on the condition TLV-TWA

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Quantitative assessment of occupational exposure to total indium dust in Japanese indium plants

et al. 2018

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“…Because personal exposure monitoring permits for continuous monitoring of workers' breathing area, it is more simple to follow worker movement and job variety. Depending on the risk and the situation, a reasonable risk evaluation and management can be conducted with flexibility, to establish whether or not to monitor, which monitoring method is required, and the time interval needed before re-monitoring (Hashimoto et al, 2017). The procedure and the concept are very different for area sampling.…”

Section: Personal V/s Area Samplingmentioning

confidence: 99%

Sigurnost rada u anatomskom laboratoriju s formalinom i inovativno praćenje procjene profesionalne izloženosti formaldehidu

et al. 2021

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This review is directed at preventive health professionals, anatomic pathologists and technicians to focus their attention on the rapidly growing field of safe formalin practices. An updated overview of the most recent improvements in preventive measures versus formaldehyde (FA) in the anatomic pathology laboratories (APL) is provided. The occupational hygienist role and the required knowledge for a modern and clear occupational exposure assessment are described. Real-time, in-continuous, commercial analyzers for repeated FA exposure assessment are considered to evaluate technical changes in air monitoring programs, introduced to mitigate FA emissions, in compliance with the adopted limit values. To better choose the adequate instrumentation, the main features of each FA monitoring instrument recently introduced on the market are listed. Moreover, the main features of the modern workflow setting in APL are summarized. A computer-based scientific and non-scientific reports search by key-words was performed on PubMed, Web of Science, Google Scholar and Google Patents databases, querying the following topics: i) grossing workstation for ergonomic layout, ii) commercially available direct reading tools to measure formalin, iii) real-time, in-continuous FA monitoring instruments for sale. This review represents a useful tool to summarize the technical requirements and expert know-how necessary to minimize FA emissions and produce an exhaustive FA assessment in the APL.

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“…When conducting personal exposure measurements, it is necessary to record actions and observations [3]. However, recording actions and observations accurately while conducting measurements is difficult because it requires a dedicated observer.…”

Section: Introductionmentioning

confidence: 99%

Combining Indoor Positioning Using Wi-Fi Round Trip Time with Dust Measurement in the Field of Occupational Health

Ando

Sekoguchi

Ikegami

et al. 2021

Sensors

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Monitoring of personal exposure to hazardous substances has garnered increasing attention over the past few years. However, no straightforward and exact indoor positioning technique has been available until the recent discovery of Wi-Fi round trip time (Wi-Fi RTT). In this study, we investigated the possibility of using a combination of Wi-Fi RTT for indoor positioning and a wearable particle monitor (WPM) to observe dust concentration during walking in a simulated factory. Ultrasonic humidifiers were used to spray sodium chloride solution inside the factory. The measurements were recorded three times on different routes (Experiments A, B, and C). The error percentages, i.e., measurements that were outside the expected measurement area, were 7% (49 s/700 s) in Experiment A, 2.3% (15 s/660 s) in Experiment B, and 7.8% (50 s/645 s) in Experiment C. The dust measurements were also recorded without any obstruction. A heat map was created based on the results from both measured values. Wi-Fi RTT proved useful for computing the indoor position with high accuracy, suggesting the applicability of the proposed methodology for occupational health monitoring.

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Guidelines for personal exposure monitoring of chemicals: Part I

Abstract: This

Cited by 6 publications

References 3 publications

Quantitative assessment of occupational exposure to total indium dust in Japanese indium plants

Quantitative assessment of occupational exposure to total indium dust in Japanese indium plants

Sigurnost rada u anatomskom laboratoriju s formalinom i inovativno praćenje procjene profesionalne izloženosti formaldehidu

Combining Indoor Positioning Using Wi-Fi Round Trip Time with Dust Measurement in the Field of Occupational Health

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