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Lee JH, Gatera VA, Smith T, Panimbang F, Gonzalez A, Abdulah R, Bonham C, Bryant AK, Liu S. Biomonitoring of Exposures to Solvents and Metals in Electronics Manufacturing Facilities in Batam, Indonesia. New Solut 2024; 33:220-235. [PMID: 38112404 DOI: 10.1177/10482911231218478] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Concerns about chemical exposure in the electronics manufacturing industry have long been recognized, but data are lacking in Southeast Asia. We conducted a study in Batam, Indonesia, to evaluate chemical exposures in electronics facilities, using participatory research and biological monitoring approaches. A convenience sample of 36 workers (28 exposed, 8 controls) was recruited, and urine samples were collected before and after shifts. Five solvents (acetone, methyl ethyl ketone, toluene, benzene, and xylenes) were found in 46%-97% of samples, and seven metals (arsenic, cadmium, cobalt, tin, antimony, lead, and vanadium) were detected in 60%-100% of samples. Biological monitoring and participatory research appeared to be useful in assessing workers' exposure when workplace air monitoring is not feasible due to a lack of cooperation from the employer. Several logistical challenges need to be addressed in future biomonitoring studies of electronics workers in Asia in factories where employers are reluctant to track workers' exposure and health.
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Affiliation(s)
- Jung Hyun Lee
- School of Health Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Vesara Ardhe Gatera
- Department of Pharmacy and Health Sciences, University Kuala Lumpur - Royal College of Medicine Perak, Ipoh, Perak, Malaysia
- Center of Excellence for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
| | - Ted Smith
- International Campaign for Responsible Technology, San Jose, California, USA
| | | | | | - Rizky Abdulah
- Center of Excellence for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
- Department of Pharmacology and Clinical Pharmacy, Universitas Padjadjaran, Jatinangor, Indonesia
| | - Connie Bonham
- Analytical Mass Spectrometry Facility, Purdue University, West Lafayette, Indiana, USA
| | | | - Sa Liu
- School of Health Sciences, Purdue University, West Lafayette, Indiana, USA
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Lee DW, Cho S, Shin A. Lymphohematopoietic cancer mortality among Korean semiconductor manufacturing workers. BMC Public Health 2023; 23:1473. [PMID: 37533044 PMCID: PMC10398905 DOI: 10.1186/s12889-023-16325-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/17/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND We aimed to examine the lymphohematopoietic cancer mortality in a cohort of workers at a semiconductor manufacturing company in South Korea according to their jobs. METHODS A retrospective cohort was constructed using the personnel records of semiconductor manufacturing workers who were employed in a semiconductor company in South Korea in 1998-2012. Data on their vital status and causes of death were obtained from the National Statistical Office of South Korea. The standardized mortality ratios (SMRs) of lymphohematopoietic cancer were calculated. RESULTS A total of 288 deaths were reported, of which 22 were caused by lymphohematopoietic cancer, among 65,782 workers in 878,325 person-years. The SMRs for lymphohematopoietic cancer were 0.78 (95% confidence interval [CI] = 0.39-1.40; the number of observed cases [Obs] = 11) among male workers and 1.71 (95% CI = 0.85-3.06; Obs = 11) among female workers. Among female operators, excess deaths due to lymphohematopoietic cancer (SMR = 2.59, 95% CI = 1.24-4.76) and leukemia (SMR = 2.92, 95% CI = 1.26-5.76) were observed. However, they were not observed among office workers, facility managers, utility managers, or process managers. CONCLUSION Female operators involved in the semiconductor wafer fabrication process had higher risk of mortality from lymphohematopoietic cancer.
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Affiliation(s)
- Dong-Wook Lee
- Department of Occupational and Environmental Medicine, Inha University Hospital, Inha University, Incheon, Republic of Korea
| | - Sooyoung Cho
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Genomic Medicine Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Aesun Shin
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Genomic Medicine Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea.
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.
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Scarselli A, Corfiati M, Di Marzio D, Massari S, Marinaccio A, Iavicoli S. The impact of vinyl chloride exposure on the health of Italian workers: an evaluation from SIREP compliance data. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2021; 77:372-381. [PMID: 33739244 DOI: 10.1080/19338244.2021.1900045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The aim of the study is to investigate exposures to vinyl chloride monomer (VCM) at workplace in Italy and the related burden of diseases. Measurements data was collected from a nation-wide occupational exposure registry (SIREP, 1996-2016). Potentially exposed workers were estimated for some industrial sectors. Concurrent exposures were investigated using cluster analysis. Proportionate mortality ratios were calculated linking data to national mortality statistics (2005-2015). Overall 8,460 measurements were analyzed. Most exposures occurred in the manufacture of chemicals and plastic products. A total of 12,148 workers potentially exposed was estimated (64% male). Concurrent exposures were detected frequently (83%). An elevated proportion of deaths for liver cancer was found in male exposed workers. Although VCM is a known carcinogen for humans, there are still many exposure situations, albeit at low doses, in the chemical and plastic industries.
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Affiliation(s)
- Alberto Scarselli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Marisa Corfiati
- Department of Prevention, Occupational Health and Safety Unit (SPeSAL), Local Health Authority of Bari, Bari, Italy
| | - Davide Di Marzio
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Stefania Massari
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Alessandro Marinaccio
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Sergio Iavicoli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
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Yoon C, Kim S, Park D, Choi Y, Jo J, Lee K. Chemical Use and Associated Health Concerns in the Semiconductor Manufacturing Industry. Saf Health Work 2020; 11:500-508. [PMID: 33329917 PMCID: PMC7728705 DOI: 10.1016/j.shaw.2020.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 03/03/2020] [Accepted: 04/12/2020] [Indexed: 11/29/2022] Open
Abstract
Background Research on the status of many chemicals used in the semiconductor industry is needed. The purpose of this study was to describe the overall status of chemical use in the semiconductor industry in Korea and to examine it from a health perspective. Methods Data on the status of chemical use and safety data sheets at 11 of 12 major semiconductor workplaces in Korea were collected. The number of chemical products and chemical constituents, quantities of chemicals, and trade secret ingredients used, as well as the health hazards were examined. Results On average, 210 chemical products and 135 chemical constituents were used at the surveyed workplaces. Among all chemical products, 33% (range: 16-56%) contained at least one trade secret ingredient. Most of the trade secret ingredients were used in the photolithography process. Several carcinogens, including sulfuric acid, chromic acid, ethylene oxide, crystalline silica, potassium dichromate, and formaldehyde were also used. Only 29% (39 of 135) of the chemical constituents had occupational exposure limits, and more than 60% had no National Fire Protection Association health, safety, and reactivity ratings. Based on the aforementioned results, this study revealed the following. First, many chemical products and constituents are being used in the semiconductor industry and many products contained trade secret ingredients. Second, many products contained significant amounts of carcinogenic, mutagenic, and reproductive toxicant materials. Conclusion We conclude that protecting workers in the semiconductor industry against harm from chemical substances will be difficult, due to widespread use of trade secret ingredients and a lack of hazard information. The findings of the status of chemical use and the health and safety risks in semiconductor industry will contribute to epidemiological studies, safe workplace, and worker health protection.
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Affiliation(s)
- Chungsik Yoon
- Department of Environmental Health, School of Public Health, Seoul National University, Republic of Korea
| | - Sunju Kim
- Department of Environmental Health, School of Public Health, Seoul National University, Republic of Korea
| | - Donguk Park
- Department of Environmental Health, Korea National Open University, Republic of Korea
| | - Younsoon Choi
- Management and Planning Bureau, Korea Occupational Safety and Health Agency, Republic of Korea
| | - Jihoon Jo
- Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Republic of Korea
| | - Kwonseob Lee
- Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Republic of Korea
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DeBono N, Kelly-Reif K, Richardson D, Keil A, Robinson W, Troester M, Marshall S. Mortality among autoworkers manufacturing electronics in Huntsville, Alabama. Am J Ind Med 2019; 62:282-295. [PMID: 30569473 DOI: 10.1002/ajim.22933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Workers raised concerns over suspected excesses of mortality at automotive electronics manufacturing facilities in Huntsville, Alabama. METHODS A study of 4396 UAW members ever-employed at Huntsville facilities between 1972 and 1993 was conducted with mortality follow-up through 2016. Standardized Mortality Ratios (SMRs) were estimated using U.S. and Alabama reference rates. RESULTS Relative to U.S. rates, there was a modest excess of all-cause mortality among White female workers (SMR 1.08, 95%CI: 0.99-1.18) and among all workers hired <1977 at the original plant building (SMR 1.10, 95%CI: 0.99-1.22). There was excess nervous system disorder (SMR 1.24, 95%CI: 0.91-1.65) and brain and nervous system cancer (SMR 1.31, 95%CI: 0.67-2.28) mortality. Estimates for several causes of interest were imprecise. CONCLUSIONS All-cause mortality estimates were greater than anticipated based on results from other UAW cohorts. The excess of nervous system disease mortality is consistent with other studies of electronics workers exposed to lead-solder and chlorinated solvents.
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Affiliation(s)
- Nathan DeBono
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Kaitlin Kelly-Reif
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - David Richardson
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Alex Keil
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Whitney Robinson
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Melissa Troester
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Stephen Marshall
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
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DeBono N, Richardson D, Keil A, Kelly-Reif K, Robinson W, Troester M, Marshall S. Employment characteristics and cause-specific mortality at automotive electronics manufacturing plants in Huntsville, Alabama. Am J Ind Med 2019; 62:296-308. [PMID: 30791109 DOI: 10.1002/ajim.22963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 01/25/2019] [Accepted: 02/01/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND This study was carried out in response to worker concerns over their exposure to lead solder and chlorinated solvents at automotive electronics manufacturing plants in Huntsville, Alabama. METHODS A study of 4396 United Autoworkers members ever-employed at the plants between 1972 and 1993 was conducted with mortality follow-up through 2016. Poisson regression was used to estimate mortality rate ratios (RR) according to employment characteristics, including calendar period of employment. RESULTS Pre-1977 hires exhibited elevated adjusted rates of all-cause (RR, 1.29; 95% confidence interval [CI], 1.09-1.52), cardiovascular (RR, 1.38; 95% CI, 1.03-1.86), and digestive system (RR, 2.31; 95% CI, 1.04-5.10) disease mortality relative to the most recent hire group (1984-1993). Never- versus ever-employment in a skilled trade job was associated with elevated adjusted rates of all-cause, all-cancer, and cardiovascular disease mortality. Nervous system disorder mortality was greatest among 1977-1983 hires. CONCLUSIONS Elevated mortality among pre-1977 hires is consistent with worker concerns over greater exposure to hazards at the original plant building.
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Affiliation(s)
- Nathan DeBono
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - David Richardson
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Alex Keil
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Kaitlin Kelly-Reif
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Whitney Robinson
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Melissa Troester
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Stephen Marshall
- Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
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Moraes ES, Mello MSDC, Nogueira FDAM, Otero UB, Carvalho FND. Analysis of individuals with leukemia: cancer surveillance system limitations. CIENCIA & SAUDE COLETIVA 2017; 22:3321-3332. [PMID: 29069187 DOI: 10.1590/1413-812320172210.18292017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 06/26/2017] [Indexed: 11/22/2022] Open
Abstract
Cancer is the second leading cause of death in the world with great impact on public health and leukemia is a hematological cancer directly related to different exposures at work. This study aimed to describe the occupational profile of individuals diagnosed with leukemia. This is a cross-sectional study of cases registered between 2007 and 2011 in the Integrador RHC database. Individuals from 26 Brazilian states, aged 20 years or older, were included. Of the 7,807 cases of leukemia, Minas Gerais recorded the highest occurrence (1,351). Only 52% of the cases had information on occupation. Occupations with the greatest number of cases of leukemia were agricultural, forestry and fishing workers; services, stores and markets vendors; and workers in the production of industrial goods and services. These occupations are exposed to substances considered by literature as carcinogenic agents to humans. There was a high underreporting of occupational data, compromising the quality of information and, therefore, the effectiveness of the Brazilian health surveillance system. The RHC also does not provide information about the agent used during the working day, the exposure time during working life and data from previous occupations.
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Affiliation(s)
- Elisane Silveira Moraes
- Unidade Técnica de Exposição Ocupacional, Ambiental e Câncer, Coordenação de Prevenção e Vigilância, INCA. R. Marquês de Pombal 125/5º, Centro. 20230-240 Rio de Janeiro RJ Brasil.
| | - Marcia Sarpa de Campos Mello
- Unidade Técnica de Exposição Ocupacional, Ambiental e Câncer, Coordenação de Prevenção e Vigilância, INCA. R. Marquês de Pombal 125/5º, Centro. 20230-240 Rio de Janeiro RJ Brasil.
| | - Fernanda de Albuquerque Melo Nogueira
- Unidade Técnica de Exposição Ocupacional, Ambiental e Câncer, Coordenação de Prevenção e Vigilância, INCA. R. Marquês de Pombal 125/5º, Centro. 20230-240 Rio de Janeiro RJ Brasil.
| | - Ubirani Barros Otero
- Unidade Técnica de Exposição Ocupacional, Ambiental e Câncer, Coordenação de Prevenção e Vigilância, INCA. R. Marquês de Pombal 125/5º, Centro. 20230-240 Rio de Janeiro RJ Brasil.
| | - Flávia Nascimento de Carvalho
- Unidade Técnica de Exposição Ocupacional, Ambiental e Câncer, Coordenação de Prevenção e Vigilância, INCA. R. Marquês de Pombal 125/5º, Centro. 20230-240 Rio de Janeiro RJ Brasil.
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Little PC. Corporate Mortality Files and Late Industrial Necropolitics. Med Anthropol Q 2017; 32:161-176. [PMID: 28980396 DOI: 10.1111/maq.12417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 08/21/2017] [Accepted: 09/07/2017] [Indexed: 11/29/2022]
Abstract
This article critically examines the corporate production, archival politics, and socio-legal dimensions of corporate mortality files (CMFs), the largest corporate archive developed by IBM to systematically document industrial exposures and occupational health outcomes for electronics workers. I first provide a history of IBM's CMF project, which amounts to a comprehensive mortality record for IBM employees over the past 40 years. Next, I explore a recent case in Endicott, New York, birthplace of IBM, where the U.S. National Institute for Occupational Safety and Health studied IBM's CMFs for workers at IBM's former Endicott plant. Tracking the production of the IBM CMF, the strategic avoidance of this source of big data as evidence for determining a recent legal settlement, alongside local critiques of the IBM CMF project, the article develops what I call "late industrial necropolitics."
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Abstract
In occupational cohort mortality studies, epidemiologists often compare the observed number of deaths in the cohort to the expected number obtained by multiplying person-time accrued in the study cohort by the mortality rate in an external reference population. Interpretation of the result may be difficult due to noncomparability of the occupational cohort and reference population with respect to unmeasured risk factors for the outcome of interest. We describe an approach to estimate an adjusted standardized mortality ratio (aSMR) to control for such bias. The approach draws on methods developed for the use of negative control outcomes. Conditions necessary for unbiased estimation are described, as well as looser conditions necessary for bias reduction. The approach is illustrated using data on bladder cancer mortality among male Oak Ridge National Laboratory workers. The SMR for bladder cancer was elevated among hourly-paid males (SMR = 1.9; 95% confidence interval [CI] = 1.3, 2.7) but not among monthly-paid males (SMR = 1.0; 95% CI = 0.67, 1.3). After indirect adjustment using the proposed approach, the mortality ratios were similar in magnitude among hourly- and monthly-paid men (aSMR = 2.2; 95% CI = 1.5, 3.2; and, aSMR = 2.0; 95% CI = 1.4, 2.8, respectively). The proposed adjusted SMR offers a complement to typical SMR analyses.
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Jiang A, Rambhatla P, Eide M. Socioeconomic and lifestyle factors and melanoma: a systematic review. Br J Dermatol 2015; 172:885-915. [PMID: 25354495 DOI: 10.1111/bjd.13500] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2014] [Indexed: 12/27/2022]
Affiliation(s)
- A.J. Jiang
- Stritch School of Medicine; Loyola University Chicago; Maywood IL U.S.A
| | - P.V. Rambhatla
- Department of Dermatology; Henry Ford Hospital; New Center One; 3031 West Grand Blvd, Suite 800 Detroit MI 48202 U.S.A
| | - M.J. Eide
- Department of Dermatology; Henry Ford Hospital; New Center One; 3031 West Grand Blvd, Suite 800 Detroit MI 48202 U.S.A
- Department of Public Health Sciences; Henry Ford Hospital; New Center One; 3031 West Grand Blvd, Suite 800 Detroit MI 48202 U.S.A
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Silver SR, Pinkerton LE, Fleming DA, Jones JH, Allee S, Luo L, Bertke SJ. Retrospective cohort study of a microelectronics and business machine facility. Am J Ind Med 2014; 57:412-24. [PMID: 24375784 DOI: 10.1002/ajim.22288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2013] [Indexed: 11/06/2022]
Abstract
OBJECTIVES We examined health outcomes among 34,494 workers employed at a microelectronics and business machine facility 1969-2001. METHODS Standardized mortality ratio (SMR) and standardized incidence ratios were used to evaluate health outcomes in the cohort and Cox regression modeling to evaluate relations between scores for occupational exposures and outcomes of a priori interest. RESULTS Just over 17% of the cohort (5,966 people) had died through 2009. All cause, all cancer, and many cause-specific SMRs showed statistically significant deficits. In hourly males, SMRs were significantly elevated for non-Hodgkin's lymphoma and rectal cancer. Salaried males had excess testicular cancer incidence. Pleural cancer and mesothelioma excesses were observed in workers hired before 1969, but no available records substantiate use of asbestos in manufacturing processes. A positive, statistically significant relation was observed between exposure scores for tetrachloroethylene and nervous system diseases. CONCLUSIONS Few significant exposure-outcome relations were observed, but risks from occupational exposures cannot be ruled out due to data limitations and the relative youth of the cohort.
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Affiliation(s)
- Sharon R. Silver
- Division of Surveillance, Hazard Assessment and Field Studies; National Institute for Occupational Safety and Health; Cincinnati Ohio
| | - Lynne E. Pinkerton
- Division of Surveillance, Hazard Assessment and Field Studies; National Institute for Occupational Safety and Health; Cincinnati Ohio
| | - Donald A. Fleming
- Division of Surveillance, Hazard Assessment and Field Studies; National Institute for Occupational Safety and Health; Cincinnati Ohio
| | | | | | - Lian Luo
- Emergint Technologies; Cincinnati Ohio
| | - Stephen J. Bertke
- Division of Surveillance, Hazard Assessment and Field Studies; National Institute for Occupational Safety and Health; Cincinnati Ohio
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Kim MH, Kim H, Paek D. The health impacts of semiconductor production: an epidemiologic review. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2013; 20:95-114. [PMID: 24999845 DOI: 10.1179/2049396713y.0000000050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Despite concerns over the harmful health effects of semiconductor production, epidemiological studies have shown mixed results. OBJECTIVES We aim to critically appraise epidemiologic studies to date, and to suggest future research and actions to protect workers in semiconductor industry. METHODS Epidemiologic studies were identified through electronic database searches, review of reference lists of relevant published works, and expert consultations, and were narratively reviewed. RESULTS Most evidence suggests reproductive risks from fabrication jobs, including spontaneous abortion (SAB), congenital malformation, and reduced fertility. Although chemicals have been suspected as causal agents, knowledge of the likely contribution(s) from specific exposures is still limited. Evidence of cancer risk seems to be equivocal. However, the available studies had serious limitations including healthy worker effects (HWEs), information bias, and insufficient power, all of which are associated with underestimation. Nevertheless, excess risks for non-Hodgkin's lymphoma (NHL), leukemia, brain tumor, and breast cancer were observed. CONCLUSIONS Monitoring and innovative research based on international collaboration with a focus on sentinel events are required.
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Lin CC, Wang JD, Hsieh GY, Chang YY, Chen PC. Increased Risk of Death with Congenital Anomalies in the Offspring of Male Semiconductor Workers. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2013; 14:112-6. [DOI: 10.1179/oeh.2008.14.2.112] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Karami S, Bassig B, Stewart PA, Lee KM, Rothman N, Moore LE, Lan Q. Occupational trichloroethylene exposure and risk of lymphatic and haematopoietic cancers: a meta-analysis. Occup Environ Med 2013; 70:591-9. [DOI: 10.1136/oemed-2012-101212] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Neta G, Stewart PA, Rajaraman P, Hein MJ, Waters MA, Purdue MP, Samanic C, Coble JB, Linet MS, Inskip PD. Occupational exposure to chlorinated solvents and risks of glioma and meningioma in adults. Occup Environ Med 2012; 69:793-801. [PMID: 22864249 PMCID: PMC3850418 DOI: 10.1136/oemed-2012-100742] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Chlorinated solvents are classified as probable or possible carcinogens. It is unknown whether exposure to these agents increases the risk of malignant or benign brain tumours. Our objective was to evaluate associations of brain tumour risk with occupational exposure to six chlorinated solvents (i.e., dichloromethane, chloroform, carbon tetrachloride, 1,1,1-trichloroethane, trichloroethylene and perchloroethylene). METHODS 489 glioma cases, 197 meningioma cases and 799 controls were enrolled in a hospital-based case-control study conducted at three U.S.A. hospitals in Arizona, Massachusetts and Pennsylvania. Information about occupational history was obtained through a detailed inperson interview that included job-specific modules of questions such that the interview was tailored to each individual's particular work history. An industrial hygienist assessed potential solvent exposure based on this information and an exhaustive review of the relevant industrial hygiene literature. Unconditional logistic regression models were used to calculate OR and 95% CI for each solvent for ever/never, duration, cumulative, average weekly and highest exposure. RESULTS Overall, we found no consistent evidence of an increased risk of glioma or meningioma related to occupational exposure to the six chlorinated solvents evaluated. There was some suggestion of an association between carbon tetrachloride and glioma in analyses restricted to exposed subjects, with average weekly exposure above the median associated with increased risk compared with below the median exposure (OR = 7.1, 95% CI 1.1 to 45.2). CONCLUSIONS We found no consistent evidence for increased brain tumour risk related to chlorinated solvents.
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Affiliation(s)
- Gila Neta
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, EPS, Room 7092, 6120 Executive Boulevard, Bethesda, MD 20852-7244, USA.
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Lee M, Waitzkin H. A heroic struggle to understand the risk of cancers among workers in the electronics industry: the case of Samsung. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2012; 18:89-91. [PMID: 22762486 DOI: 10.1179/1077352512z.00000000022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Mira Lee
- Physicians for Humanism, South Korea
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Kim I, Kim HJ, Lim SY, Kongyoo J. Leukemia and non-Hodgkin lymphoma in semiconductor industry workers in Korea. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2012; 18:147-53. [PMID: 22762495 DOI: 10.1179/1077352512z.00000000019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Reports of leukemia and non-Hodgkin lymphoma (NHL), cancers known to have a similar pathophysiology, among workers in the semiconductor industry have generated much public concern in Korea. This paper describes cases reported to the NGO Supporters for the Health and Rights of People in the Semiconductor Industry (SHARPs). We identified demographic characteristics, occupational, and disease history, for 17 leukemia and NHL cases from the Giheung Samsung semiconductor plant, diagnosed from November 2007 to January 2011. Patients were relatively young (mean = 28·5 years, SD = 6·5) at the time of diagnosis and the mean latency period was 104·3 months (SD = 65·8). Majority of the cases were fabrication operators (11 workers among 17) and 12 were hired before 2000. Six cases worked in the etching or diffusion process. The evidence to confirm the causal relationship between exposures in the semiconductor industry and leukemia or NHL remains insufficient and a more formal, independent study of the exposure-disease relationship in this occupation is needed. However, workers should be protected from the potential exposures immediately.
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Affiliation(s)
- Inah Kim
- Department of Occupational and Environmental Health, Graduate School of Public Health, Yonsei University, Korea
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Yoon C. Much concern but little research on semiconductor occupational health issues. J Korean Med Sci 2012; 27:461-4. [PMID: 22563207 PMCID: PMC3342533 DOI: 10.3346/jkms.2012.27.5.461] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 04/12/2012] [Indexed: 11/26/2022] Open
Affiliation(s)
- Chungsik Yoon
- Institute of Health and Environment, School of Public Health, Seoul National University, Seoul, Korea
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Cancer mortality and incidence in korean semiconductor workers. Saf Health Work 2011; 2:135-47. [PMID: 22953196 PMCID: PMC3431897 DOI: 10.5491/shaw.2011.2.2.135] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 04/14/2011] [Indexed: 12/01/2022] Open
Abstract
Objectives The purpose of this study was to evaluate cancer risks in the Korean semiconductor industry. Methods A retrospective cohort study was performed in eight semiconductor factories between 1998 and 2008. The number of subjects was 113,443 for mortality and 108,443 for incidence. Standardized mortality ratios (SMR) and standardized incidence ratios (SIR) were calculated. Results The SMR of leukemia was 0.39 (95% Confidence Interval 0.08-1.14) in males (2 cases) and 1.37 (0.55-2.81) in females (7 cases). The SMR of non-Hodgkin's lymphoma (NHL) was 1.33 (0.43-3.09, 5 cases) in males and 2.5 (0.68-6.40, 4 cases) in females. The SIR of leukemia was 0.69 (0.30-1.37, 8 cases) in males and 1.28 (0.61-2.36, 10 cases) in females. The SIR of NHL in females was 2.31 (1.23-3.95, 13 cases) and that of thyroid cancer in males was 2.11 (1.49-2.89, 38 cases). The excess incidence of NHL was significant in female assembly operators [SIR=3.15 (1.02-7.36, 5 cases)], but not significant in fabrication workers. The SIR of NHL in the group working for 1-5 years was higher than the SIR of NHL for those working for more than five years. The excess incidence of male thyroid cancer was observed in both office and manufacturing workers. Conclusion There was no significant increase of leukemia in the Korean semiconductor industry. However, the incidence of NHL in females and thyroid cancer in males were significantly increased even though there was no definite association between work and those diseases in subgroup analysis according to work duration. This result should be interpreted cautiously, because the majority of the cohort was young and the number of cases was small.
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Kim EA, Lee HE, Ryu HW, Park SH, Kang SK. Cases series of malignant lymphohematopoietic disorder in korean semiconductor industry. Saf Health Work 2011; 2:122-34. [PMID: 22953195 PMCID: PMC3431896 DOI: 10.5491/shaw.2011.2.2.122] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 04/14/2011] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Seven cases of malignant lymphohematopoietic (LHP) disorder were claimed to have developed from occupational exposure at two plants of a semiconductor company from 2007 to 2010. This study evaluated the possibility of exposure to carcinogenic agents for the cases. METHODS Clinical courses were reviewed with assessing possible exposure to carcinogenic agents related to LHP cancers. Chemicals used at six major semiconductor companies in Korea were reviewed. Airborne monitoring for chemicals, including benzene, was conducted and the ionizing radiation dose was measured from 2008 to 2010. RESULTS The latency of seven cases (five leukemiae, a Non-Hodgkin's lymphoma, and an aplastic anemia) ranged from 16 months to 15 years and 5 months. Most chemical measurements were at levels of less than 10% of the Korean Occupational Exposure Limit value. No carcinogens related to LHP cancers were used or detected. Complete-shielded radiation-generating devices were used, but the ionizing radiation doses were 0.20-0.22 uSv/hr (background level: 0.21 µSv/hr). Airborne benzene was detected at 0.31 ppb when the detection limit was lowered as low as possible. Ethylene oxide and formaldehyde were not found in the cases' processes, while these two were determined to be among the 263 chemicals in the list that was used at the six semiconductor companies at levels lower than 0.1%. Exposures occurring before 2002 could not be assessed because of the lack of information. CONCLUSION Considering the possibility of exposure to carcinogenic agents, we could not find any convincing evidence for occupational exposure in all investigated cases. However, further study is needed because the semiconductor industry is a newly developing one.
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Affiliation(s)
- Eun-A Kim
- Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Incheon, Korea
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Meyskens FL, Yang S. Thinking about the role (largely ignored) of heavy metals in cancer prevention: hexavalent chromium and melanoma as a case in point. Recent Results Cancer Res 2011; 188:65-74. [PMID: 21253789 DOI: 10.1007/978-3-642-10858-7_5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ultraviolet (UV) light exposure accounts for only 40-50% of the attributable risk for cutaneous melanoma (CM); also classical UV-induced lesions are rare in melanomas (especially among CM with NRAS or BRAF mutations). It is therefore likely that an additional environmental factor exists as familial and genetic factors play a role in less than 5%. A large amount of (largely forgotten) epidemiologic data indicates that heavy metal exposure is strongly associated with the development of CM. Also, epidemiologic studies of patients with joint replacement indicate a marked subsequent time-related increase in melanoma in patients with metal-on-metal hip arthroplasties. In these patients chromium and cobalt levels rise to 10x normal and stay elevated at levels two- to threefold normal for at least 10 years. Chromium is widely used in industry for its anticorrosive and steel-strengthening properties and is widespread in everyday materials. Our hypothesis is therefore that chromium, alone or in conjunction with UV, plays a major role in the pathogenesis of CM. We have incubated human neonatal melanocytes for more than 10 weeks in the presence of a wide range and concentrations of metals without effect except by hexavalent chromium Cr(VI)and to a lesser degree Co²(+). After prolonged culture, chromium-incubated cells produced foci and when replated secondary colonies formed. We have just begun to study this phenomenon in more detail and studies without and with different wavelengths of UV will be explored. Of interest is that aneuploidy (a universal chromosomal change in cutaneous melanoma) in lymphocytes in patients with hip-on-hip metal prostheses has been demonstrated by others.
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Cancer Mortality Among US Workers Employed in Semiconductor Wafer Fabrication. J Occup Environ Med 2010; 52:1082-97. [DOI: 10.1097/jom.0b013e3181f7e520] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Colt JS, Karagas MR, Schwenn M, Baris D, Johnson A, Stewart P, Verrill C, Moore LE, Lubin J, Ward MH, Samanic C, Rothman N, Cantor KP, Beane Freeman LE, Schned A, Cherala S, Silverman DT. Occupation and bladder cancer in a population-based case-control study in Northern New England. Occup Environ Med 2010; 68:239-49. [PMID: 20864470 DOI: 10.1136/oem.2009.052571] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES We used data from a large, population-based case-control study in Maine, New Hampshire, and Vermont to examine relationships between occupation, industry and bladder cancer risk. METHODS Lifetime occupational histories were obtained by personal interview from 1158 patients newly diagnosed with urothelial carcinoma of the bladder in 2001-2004, and from 1402 population controls. Unconditional logistic regression was used to calculate ORs and 95% CIs, adjusted for demographic factors, smoking and employment in other high-risk occupations. RESULTS Male precision metalworkers and metalworking/plasticworking machine operators had significantly elevated risks and significant trends in risk with duration of employment (precision metalworkers: OR 2.2, 95% CI 1.4 to 3.4, p(trend) = 0.0065; metalworking/plasticworking machine operators: OR 1.6, 95% CI 1.01 to 2.6, p(trend) = 0.047). Other occupations/industries for which risk increased significantly with duration of employment included: for men, textile machine operators, mechanics/repairers, automobile mechanics, plumbers, computer systems analysts, information clerks, and landscape industry workers; for women, service occupations, health services, cleaning and building services, management-related occupations, electronic components manufacturing and transportation equipment manufacturing. Men reporting use of metalworking fluids (MWF) had a significantly elevated bladder cancer risk (OR 1.7, 95% CI 1.1 to 2.5). CONCLUSIONS Our findings support the hypothesis that some component(s) of MWF may be carcinogenic to the bladder. Our results also corroborate many other previously reported associations between bladder cancer risk and various occupations. More detailed analyses using information from the study's job-specific questionnaires may help to identify MWF components that may be carcinogenic, and other bladder carcinogens associated with a variety of occupations.
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Affiliation(s)
- Joanne S Colt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland 20892-7240, USA.
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Recht LD, Harsh G, Cohen HJ. The rationale for early detection and treatment of brain tumors in survivors of childhood cancer. Oncol Rev 2009. [DOI: 10.1007/s12156-009-0005-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Clapp RW, Hoffman K. Cancer mortality in IBM Endicott plant workers, 1969-2001: an update on a NY production plant. Environ Health 2008; 7:13. [PMID: 18442394 PMCID: PMC2383884 DOI: 10.1186/1476-069x-7-13] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2008] [Accepted: 04/28/2008] [Indexed: 05/26/2023]
Abstract
BACKGROUND In response to concerns expressed by workers at a public meeting, we analyzed the mortality experience of workers who were employed at the IBM plant in Endicott, New York and died between 1969-2001. An epidemiologic feasibility assessment indicated potential worker exposure to several known and suspected carcinogens at this plant. METHODS We used the mortality and work history files produced under a court order and used in a previous mortality analysis. Using publicly available data for the state of New York as a standard of comparison, we conducted proportional cancer mortality (PCMR) analysis. RESULTS The results showed significantly increased mortality due to melanoma (PCMR = 367; 95% CI: 119, 856) and lymphoma (PCMR = 220; 95% CI: 101, 419) in males and modestly increased mortality due to kidney cancer (PCMR = 165; 95% CI: 45, 421) and brain cancer (PCMR = 190; 95% CI: 52, 485) in males and breast cancer (PCMR = 126; 95% CI: 34, 321) in females. CONCLUSION These results are similar to results from a previous IBM mortality study and support the need for a full cohort mortality analysis such as the one being planned by the National Institute for Occupational Safety and Health.
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Affiliation(s)
- Richard W Clapp
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, Boston, MA 02118, USA
| | - Kate Hoffman
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, Boston, MA 02118, USA
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Meyskens FL, Berwick M. UV or Not UV: Metals Are The Answer: Figure 1. Cancer Epidemiol Biomarkers Prev 2008; 17:268-70. [DOI: 10.1158/1055-9965.epi-07-0653] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Clapp RW, Jacobs MM, Loechler EL. Environmental and occupational causes of cancer: new evidence 2005-2007. REVIEWS ON ENVIRONMENTAL HEALTH 2008; 23:1-37. [PMID: 18557596 PMCID: PMC2791455 DOI: 10.1515/reveh.2008.23.1.1] [Citation(s) in RCA: 205] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
What do we currently know about the occupational and environmental causes of cancer? As of 2007, the International Agency for Research on Cancer (IARC) identified 415 known or suspected carcinogens. Cancer arises through an extremely complicated web of multiple causes, and we will likely never know the full range of agents or combinations of agents. We do know that preventing exposure to individual carcinogens prevents the disease. Declines in cancer rates-such as the drop in male lung cancer cases from the reduction in tobacco smoking or the drop in bladder cancer among cohorts of dye workers from the elimination of exposure to specific aromatic amines-provides evidence that preventing cancer is possible when we act on what we know. Although the overall age-adjusted cancer incidence rates in the United States among both men and women have declined in the last decade, the rates of several types of cancers are on the rise; some of which are linked to environmental and occupational exposures. This report chronicles the most recent epidemiologic evidence linking occupational and environmental exposures with cancer. Peer-reviewed scientific studies published from January 2005 to June 2007 were reviewed, supplementing our state-of-the-evidence report published in September 2005. Despite weaknesses in certain individual studies, we consider the evidence linking the increased risk of several types of cancer with specific exposures somewhat strengthened by recent publications, among them brain cancer from exposure to non-ionizing radiation, particularly radiofrequency fields emitted by mobile telephones; breast cancer from exposure to the pesticide dichlorodiphenyltrichloroethane (DDT) before puberty; leukemia from exposure to 1,3-butadiene; lung cancer from exposure to air pollution; non-Hodgkin's lymphoma (NHL) from exposure to pesticides and solvents; and prostate cancer from exposure to pesticides, polyaromatic hydrocarbons (PAHs), and metal working fluids or mineral oils. In addition to NHL and prostate cancer, early findings from the National Institutes of Health Agricultural Health Study suggest that several additional cancers may be linked to a variety of pesticides. Our report also briefly describes the toxicological evidence related to the carcinogenic effect of specific chemicals and mechanisms that are difficult to study in humans, namely exposures to bis-phenol A and epigenetic, trans-generational effects. To underscore the multi-factorial, multi-stage nature of cancer, we also present a technical description of cancer causation summarizing current knowledge in molecular biology. We argue for a new cancer prevention paradigm, one based on an understanding that cancer is ultimately caused by multiple interacting factors rather than a paradigm based on dubious attributable fractions. This new cancer prevention paradigm demands that we limit exposure to avoidable environmental and occupational carcinogens, in combination with additional important risk factors like diet and lifestyle. The research literature related to environmental and occupational causes of cancer is constantly growing, and future updates will be carried out in light of new biological understanding of the mechanisms and new methods for studying exposures in human populations. The current state of knowledge is sufficient to compel us to act on what we know. We repeat the call of ecologist Sandra Steingraber: "From the right to know and the duty to inquire flows the obligation to act."
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Affiliation(s)
- Richard W Clapp
- Boston University School of Public Health, Boston, MA 02118, USA.
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Workplace Health Promotion Interventions ConcerningWomenWorkers' Occupational Hazards. PROMOTING HEALTH FOR WORKING WOMEN 2008. [PMCID: PMC7121914 DOI: 10.1007/978-0-387-73038-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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