Journal of Occupational and Environmental Hygiene最新文献

{"title":"Estimating airborne trichloramine levels in indoor swimming pools using the well-mixed box model.","authors":"Elham Ahmadpour, Maximilien Debia","doi":"10.1080/15459624.2024.2327370","DOIUrl":"10.1080/15459624.2024.2327370","url":null,"abstract":"<p><p>Exposure to airborne disinfection by-products, especially trichloramine (TCA), could cause various occupational health effects in indoor swimming pools. However, TCA concentration measurements involve specialized analysis conducted in specific laboratories, which can result in significant costs and time constraints. As an alternative, modeling techniques for estimating exposures are promising in addressing these challenges. This study aims to predict airborne TCA concentrations in indoor swimming pools using a mathematical model, the well-mixed box model, found in the IHMOD tool, freely available on the American Industrial Hygiene Association website. The model's predictions are compared with TCA concentrations measured during various bather load scenarios. The research involved conducting 2-hr successive workplace measurements over 16- to 18-hr periods in four indoor swimming pools in Quebec, Canada. TCA concentrations were estimated using the well-mixed box model, assuming a homogeneous mixing of air within the swimming pool environment. A novel approach was developed to estimate the TCA generation rate from swimming pool water, incorporating the number of swimmers in the model. Average measured concentrations of TCA were 0.24, 0.26, 0.14, and 0.34 mg/m³ for swimming pools 1, 2, 3, and 4, respectively. The ratio of these measured average concentrations to their corresponding predicted values ranged from 0.51 to 1.30, 0.67 to 1.04, 0.57 to 1.14, and 0.68 to 1.49 for the respective swimming pools. In a worst-case scenario simulating the swimming pool at full capacity (maximum bathers allowed), TCA concentrations were estimated as 0.23, 0.36, 0.14, and 0.37 mg/m³ for swimming pools 1, 2, 3, and 4. Recalculated concentrations by adjusting the number of swimmers so as not to exceed the recommended occupational limit concentration of 0.35 mg/m³ gives a maximum number of swimmers of 63 and 335 instead of currently 80 and 424 for swimming pools 2 and 4, respectively. Similarly, for swimming pools 1 and 3, the maximum number of swimmers could be 173 and 398 (instead of the current 160 and 225, respectively). These results demonstrated that the model could be used to estimate and anticipate airborne TCA levels in indoor swimming pools across various scenarios.</p>","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":" ","pages":"397-408"},"PeriodicalIF":1.5,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140853574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“The Action Level®”","authors":"Edited by J. Thomas Pierce , PhD, CIH (1980–2012), DABT (Retired)","doi":"10.1080/15459624.2024.2346066","DOIUrl":"https://doi.org/10.1080/15459624.2024.2346066","url":null,"abstract":"Published in Journal of Occupational and Environmental Hygiene (Ahead of Print, 2024)","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":"176 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occupational exposures to asbestos in the steel industry: An analysis of the AISI sampling campaign (1989–1997)","authors":"Michael E. Stevens, David W. Brew, Dennis J. Paustenbach","doi":"10.1080/15459624.2024.2328804","DOIUrl":"https://doi.org/10.1080/15459624.2024.2328804","url":null,"abstract":"The American Iron and Steel Institute (AISI) gathered data between 1989 and 1997 to build an “objective database” to further understand the occupational exposures generated by the few asbestos-cont...","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":"97 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“The Action Level®”","authors":"Edited by J. Thomas Pierce , PhD, CIH (1980–2012), DABT (Retired)","doi":"10.1080/15459624.2024.2340357","DOIUrl":"https://doi.org/10.1080/15459624.2024.2340357","url":null,"abstract":"Published in Journal of Occupational and Environmental Hygiene (Vol. 21, No. 4, 2024)","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":"49 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of nanoparticles in bleed air in the etiology of Aerotoxic Syndrome: A review of cabin air-quality studies of 2003–2023","authors":"G. Hageman, P. van Broekhuizen, J. Nihom","doi":"10.1080/15459624.2024.2327348","DOIUrl":"https://doi.org/10.1080/15459624.2024.2327348","url":null,"abstract":"Aerotoxic Syndrome may develop as a result of chronic, low-level exposure to organophosphates (OPs) and volatile organic compounds in the airplane cabin air, caused by engine oil leaking past wet s...","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":"65 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140599731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determinants of discomfort from combined exposure to noise and vibration in dumper operators of mining industry in India","authors":"Sarang V. Dhatrak, Immad A. Shah, Shivkumar S. Prajapati","doi":"10.1080/15459624.2024.2328296","DOIUrl":"https://doi.org/10.1080/15459624.2024.2328296","url":null,"abstract":"In the mining industry, dumper operators are exposed to combined noise and vibration, leading to discomfort. Dumpers are heavy earth-moving machines that are used for carrying bulky material in min...","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":"94 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of emissions and exposure in 3D printing workplaces in Taiwan.","authors":"Yung-Sheng Chuang, Abiyu Kerebo Berekute, Hsuan-Yu Hsu, Ho-Sheng Wei, Wen-Cheng Gong, Ya-Yuan Hsu, Chuen-Jinn Tsai, Kuo-Pin Yu","doi":"10.1080/15459624.2024.2313655","DOIUrl":"10.1080/15459624.2024.2313655","url":null,"abstract":"<p><p>Three-dimensional (3D) printing is an emerging and booming industry in Taiwan. Compared to traditional manufacturing, 3D printing has various advantages, such as advanced customization, additive manufacturing, reduced mold opening time, and reduced consumption of precursors. In this study, the real-time monitoring of particulate matter (PM) and total volatile organic compound (TVOC) emissions from various filaments is investigated using fused deposition modeling with material extrusion technology, a liquid-crystal display, a stereolithography apparatus based on vat photopolymerization technology, and binder jetting for occupational settings. An exposure assessment for nearby workers using the 3D printing process was performed, and improvement measures were recommended. Nine 3D printing fields were measured. The generation rate of ultrafine particles ranged from 1.19 × 10¹⁰ to 4.90 × 10¹² #/min, and the geometric mean particle size ranged from 30.91 to 55.50 nm. The average concentration of ultrafine particles ranged from 2.31 × 10³ to 7.36 × 10⁴ #/cm³, and the PM_2.5 and PM₁₀ concentrations in each field ranged from 0.74 ± 0.27 to 12.46 ± 5.61 μg/m³ and from 2.39 ± 0.60 to 30.65 ± 21.26 μg/m³, respectively. The TVOC concentration ranged from 0.127 ± 0.012 to 1.567 ± 0.172 ppm. The respiratory deposition (RD_UFPs) dose ranged from 2.02 × 10¹³ to 5.54 × 10¹⁴ nm²/day. Depending on the operating conditions, appropriate control and protective measures should be employed to protect workers' health.</p>","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":" ","pages":"270-286"},"PeriodicalIF":2.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140049701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"History and investigation of the chemical odors and explosion in the University Avenue sanitary sewer.","authors":"Adam Krajicek, Neil G Carlson, Caylin Crawford","doi":"10.1080/15459624.2024.2309885","DOIUrl":"10.1080/15459624.2024.2309885","url":null,"abstract":"<p><p>During the summer of 2022, a fire and explosion occurred in a sanitary sewer tunnel adjacent to the University of Minnesota Twin Cities campus, propelling utility maintenance covers several meters into the air and jeopardizing the safety of the public and emergency responders. The investigation into the explosion highlighted the complex variables involved in the response to sanitary sewer events. This case study outlines current approaches and proposes recommendations for agencies to be better prepared to prevent, detect, and respond to sewer-related incidents in the future. Our recommendations include the following: (1) proactive use of remote volatile organic compound (VOC) and lower explosive limit (LEL) monitoring in sanitary sewer tunnels, especially downstream of waste discharge sites; (2) incident responders should have access to instruments that measure oxygen, LEL, VOC concentration, carbon monoxide, and hydrogen sulfide; (3) better characterization of the relationship between sewer pressurization, elevation profiles, and vapor movement; (4) verification processes for oil/water separators used by industrial facilities discharging into the sanitary sewer system; (5) installation of ventilated or anchored pressure relief utility maintenance covers where allowed by code; and (6) building maintenance protocols that include regular drain flushing to keep drain traps filled. These measures are recommended to protect infrastructure and the health and safety of the public and the responders.</p>","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":" ","pages":"162-168"},"PeriodicalIF":2.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140288323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The \"dirty work\" of last responders: Occupational stigma risk and protective factors.","authors":"Ramzi Kibbi, Rima A Afifi, Hahn Pham, Daniel K Sewell, Peter P Teahen, Mark W Vander Weg","doi":"10.1080/15459624.2024.2302481","DOIUrl":"10.1080/15459624.2024.2302481","url":null,"abstract":"<p><p>Last responders constitute an occupational category that includes all those who are involved in the postmortem care of deceased persons and their families. The work of last responders is often considered \"dirty work\" and, as a result, stigmatized. Last responders are aware of this stigma, and stigma consciousness has been associated with negative health outcomes. Despite the wide acknowledgment of stigma among last responders, specific risk, or protective factors for experiencing stigma have not been investigated. This paper aims to identify determinants of stigma among last responders in the United States. The data for this study were obtained from a national cross-sectional survey of last responders. The survey included a measure of stigma and multiple sociodemographic characteristics. A hurdle model was used to assess the association between the characteristics of last responders and their perceived stigma. Respondents were predominantly male (55.1%), White non-Hispanic (90.2%), and employed full-time (96%). Seventy-seven percent reported having experienced at least one form of occupation-related stigma. There was no significant association between the experience of stigma and any socio-demographic variables. The experience of stigma is nearly ubiquitous among last responders->75% of last responders in the sample experienced at least one form of stigma. Another aspect of its ubiquitous nature is the lack of evidence that stigma was experienced differentially across sex, race/ethnicity, employment type, and length of years as a last responder. Interventions are needed to decrease stigma among last responders and to support last responders in managing the consequences of the stigma they experience.</p>","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":" ","pages":"145-151"},"PeriodicalIF":1.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139746696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toxic encephalopathy, vision loss, and memory disorder caused by acute acrylamide exposure.","authors":"Lubei Li, Jimeng Li, Lei Luo, Juanping Li, Huidan Huang, Ying Xie","doi":"10.1080/15459624.2024.2305135","DOIUrl":"10.1080/15459624.2024.2305135","url":null,"abstract":"<p><p>Acrylamide (ACR) is an irritant that can cause damage to the eyes, skin, and nervous and reproductive systems. This study aims to illustrate a case of central nervous system and optic nerve damage from exposure to ACR. In this case, a 49-year-old male material handler was accidentally splashed with ACR solution on both of his upper limbs. Consequently, he was admitted to the hospital with toxic encephalopathy, characterized by cerebellar ataxia and slurred speech. Magnetic resonance imaging scan, a brain computed tomography scan blood sample analyses, optic coherence tomography, electroneuromyogram, and visual evoked potentials examination were performed. After 20 days of receiving symptomatic support treatment, the patient continued to experience disturbances in consciousness. Then, he developed vision loss, memory disorders, and symptoms of peripheral neuropathy such as skin peeling, extremity weakness, and absent tendon reflexes. This case report underscores the severe consequences of acute dermal exposure to high concentrations of ACR, resulting in toxic encephalopathy, visual impairment, and memory disorders, which will contribute to a broader understanding of ACR toxicity.</p>","PeriodicalId":16599,"journal":{"name":"Journal of Occupational and Environmental Hygiene","volume":" ","pages":"152-161"},"PeriodicalIF":2.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139746697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}