Abstract:
OBJECTIVES:There is concern that sound via earphones and headphones attached to headsets used in workplaces may be a risk factor for noise-induced hearing loss (NIHL). Although there are some previous studies investigating exposure to noise from headphones, almost none have assessed the risks to workers who use earphones. We assessed exposure to noise among workers who regularly wear earphones in noisy workplaces. METHODS:The subjects of this study were 21 workers who regularly wear earphones in three manufacturing companies in Japan. The sound pressure output from earphones and personal exposure to occupational noise was measured for each worker. A noise-dosimeter was used to measure individual exposure to occupational noise. The sound pressure output from the earphones was measured by recording the electric signal with a data recorder attached to the earphones, and the recording was analyzed by playing it back in the laboratory through a sound analyzer via an ear simulator. RESULTS:The mean scores for personal exposure and earphone output LAeq were 87.9 dB and 87.6 dB, respectively. Earphone output LAeq exceeded 85 dB for two-thirds of the subjects. Nearly all the subjects lacked hearing protection devices (HPDs) on their earphones. CONCLUSIONS:The results suggest that workers who use earphones in noisy workplaces are exposed to the following NIHL risk factors: (1) they are deprived of the opportunity to fit appropriate HPDs, and (2) the sound pressure output from the earphones themselves exceeds the occupational exposure limit.
journal_name
J Occup Healthjournal_title
Journal of occupational healthauthors
Nakao T,Kakei M,Araki I,Tsutsui T,Satoh N,Inoue J,Horie Sdoi
10.1539/joh.13-0285-oasubject
Has Abstractpub_date
2014-01-01 00:00:00pages
285-91issue
4eissn
1341-9145issn
1348-9585pii
DN/JST.JSTAGE/joh/13-0285-OAjournal_volume
56pub_type
杂志文章abstract::Slovenia is a small, fast developing country in the EU with approximately 2,000,000 inhabitants and 700,000 employed. Occupational medicine has been present in Slovenia for as long as 500 yr. Today, 130 specialists of occupational medicine are in charge of health protection of the employed (including transport workers...
journal_title:Journal of occupational health
pub_type: 杂志文章,评审
doi:10.1539/joh.47.193
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:Occupational lead (Pb) exposure is still an important health problem in the world. Long-term Pb exposure causes several adverse effects. The aim of this study was to investigate the changes of inflammation markers with chronic Pb exposure by analyzing neopterin levels and kynurenine (Kyn) to tryptophan (Trp)...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.16-0273-OA
更新日期:2017-07-27 00:00:00
abstract:OBJECTIVE:Nickel oxide nanoparticles (NiONPs) are representative metal oxide NPs and are categorized as an insoluble nickel compound. Our previous studies suggested that NiONPs have more pulmonary toxicity than micron-sized NiO because they may dissolve slowly and produce many more Ni ions. We confirmed the hypothesis ...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1002/1348-9585.12162
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the effects of Nickel (Ni) -smelting fumes on oncogenic proteins in vivo and in vitro. METHODS:Ni fallout beside a Ni smelting furnace in a factory was sampled to study its toxic effect. The effects of Ni-smelting fumes on the regulation of PI3K and ERK signaling ...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.15-0287-OA
更新日期:2016-09-30 00:00:00
abstract::Although the main hazard in cement processing is dust and respiratory tract disorders are the most important group of occupational diseases in this industry, evidence for associations between exposure to cement dust and either respiratory symptoms or functional impairment has not been conclusive. This study was, there...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.49.273
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVES:Many kinds of heavy metals are used in industry; thus, it is important for us to clarify their toxicity. For example, lead, which is a component of solder, is notorious for its neurotoxicity, and substitute materials have been sought for many years. Therefore, we examined the genotoxicity of lead and also th...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.l9080
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:To develop tools offering definite orientation for managers and employees to support their work improvement through occupational mental health. This research was a part of the Mental Health Improvement & Reinforcement Study (MIR study), conducted from October 2004 to March 2006. METHODS:We developed a trial...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.l8081
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:Titanium dioxide nanoparticles are widely used as UV filters in cosmetics and as a photocatalyst. We evaluated pulmonary responses to different crystal forms of TiO2 nanoparticles. METHODS:We used 4 different TiO2 samples with similar specific surface areas (anatase, rutile, amorphous, and P25). Each sample ...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.16-0094-OA
更新日期:2016-11-29 00:00:00
abstract:OBJECTIVES:This study aimed to investigate the association between occupational clusters and allergic rhinitis (AR). METHODS:The study was based on data from the Korean National Health and Nutrition Examination Survey (KNHANES: 2007-2015). This study included 46,965 individuals: 20,491 men and 26,474 women. AR was def...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.2017-0234-OA
更新日期:2018-07-25 00:00:00
abstract::Perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) are synthetic surfactants used in Japan. An epidemiological study of workers exposed to PFOA revealed a significant increase in prostate cancer mortality. A cross-sectional study of PFOA-exposed workers showed that PFOA perturbs sex hormone homeostasis. We...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.46.49
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVES:Allyl nitrile (3-butenenitrile) occurs naturally in the environment, in particular, in cruciferous vegetables, indicating a possible daily intake of the compound. There is no report on actual health effects of allyl nitrile in humans, although it is possible that individuals in the environment are at a risk ...
journal_title:Journal of occupational health
pub_type: 杂志文章,评审
doi:10.1539/joh.16-0147-RA
更新日期:2017-03-28 00:00:00
abstract:OBJECTIVE:The differences in the methodologies of various occupational health risk assessment (OHRA) models have not been extensively reported. We aimed to understand the qualitative and quantitative differences between common OHRA models in typical industries. METHODS:The Environmental Protection Agency (EPA), Austra...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.2018-0039-OA
更新日期:2018-09-26 00:00:00
abstract:OBJECTIVES:Arsine, a potent hemolytic agent, is widely used in the semiconductor industry. We report a case of arsine poisoning confirmed by arsenic speciation analysis in serum and urine that occurred in a recycling factory. CASE:A male worker in his twenties noticed hematuria 3 h after finishing work and was admitte...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.l10108
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVES:The main objectives of this cross-sectional descriptive study were to identify the prevalence of musculoskeletal symptoms and workstation biomechanical risk levels for garment workers in Kandal Province, Cambodia. METHODS:This cross-sectional descriptive study used multistage sampling techniques to select 7...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.15-0100-FS
更新日期:2016-01-01 00:00:00
abstract::A voluntary compliance program for occupational health and safety management, Voluntary Protection Programs (VPP), was implemented with a strategy of cooperation and encouragement in Taiwan. Due to limitations on increasing the human forces of inspection, a regulatory-based guideline addressing the essence of Occupati...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.47.270
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:In this study, we focused on the qualitative and quantitative differences of the lung lesions induced by single or multiple intratracheal administration of nickel oxide nanoparticles (NiO). METHODS:Male rats were randomized into groups receiving intratracheal administrations in a single dose or two to four ...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.16-0184-OA
更新日期:2017-03-28 00:00:00
abstract:OBJECTIVES:The sum of urinary inorganic arsenic (iAs), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA) concentrations is used for the biological monitoring of occupational iAs exposure. Although DMA is a major metabolite of iAs, it is an inadequate index because high DMA levels are present in urine after s...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.15-0241-OA
更新日期:2016-05-25 00:00:00
abstract::Infrared Spectrophotometry (IR) is now widely used to determine crystalline silica in industrial dust samples. Though the IR method has many advantages when dealing with respirable dust samples, some serious analytical errors are often caused by interference minerals contamination. These minerals have a characteristic...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.45.94
更新日期:2003-03-01 00:00:00
abstract::This paper examines the effects of shift work on the lifestyles of female factory workers. As an indicator of healthy lifestyle habits, we used a scoring system (referred to below as the 'health score') based on Lester Breslow's health habits. The 'health score' of the women was higher than that of the men, but the sh...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.46.192
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVES:We performed the current study to (1) understand the distribution of culturable airborne bacteria over a one-year monitoring period, (2) confirm places in stations where airborne bacteria are highly detected, (3) understand the factors that affect concentrations of airborne bacteria and (4) compare the distr...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.13-0055-fs
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:Despite the great impact the migration has had in economic, social and health-related fields, and the repercussions of alcohol consumption on them, few data exist concerning the extent of alcohol consumption in migrant workers. The aims of this study were to identify workers with a hazardous drinking problem...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.13-0119-oa
更新日期:2014-01-01 00:00:00
abstract::Using workplaces as a unit for randomization, a randomized controlled trial was conducted to determine the effects of web-based supervisor training on the subject of worksite mental health on job stressors, supervisor support and psychological distress among subordinate workers. A total of eight workplaces of a sales ...
journal_title:Journal of occupational health
pub_type: 杂志文章,随机对照试验
doi:10.1539/joh.48.28
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVES:This field study aimed to determine the incidence and distribution of needlestick injuries among medical trainees at a community teaching hospital in Toronto, Canada. METHODS:The study was performed during the 2013-2015 academic years at Toronto East General Hospital (TEGH), a University of Toronto-affiliat...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.15-0253-FS
更新日期:2017-01-24 00:00:00
abstract::Sleep Apnea Syndrome (SAS) is a condition characterized by sleep-disordered breathing resulting in health impairment and sleep problems. From the viewpoints of the prevention of health impairment, accidents at work and traffic accidents, active implementation of screening for SAS in workplaces is necessary. Using a po...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.49.1
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVES:It is common to find doctors working long and odd hours and many at times without rest and sleep. Despite the evidence of adverse risk, jeopardizing patient safety under the hands of fatigue doctors under such working hours has not changed in many places. It has argued that with such training and subsequent ...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1002/1348-9585.12121
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:Work-related psychosocial hazards are associated with adverse health outcomes among workers. The association between psychosocial hazards and physiological health outcomes among laboratory technicians has not been studied previously. The objective of this study was to measure the association between work-rel...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.13-0050-fs
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:The present study examined how job demands affect an intimate partner's well-being. We hypothesized that job demands have a negative influence on partner well-being through the experience of work-family conflict (WFC) and an impaired quality of the relationship (reduced social support and increased social un...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.l8160
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:We investigated the effects of fatigue on NK cell function and lymphocyte subpopulations in nurses performing shift work using a longitudinal design. METHODS:Fifty-seven female nurses engaged in shift work at a hospital in Japan were selected for our study cohort. The hospital used a counterclockwise rotati...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.10-0072-oa
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate whether sedentary job role and gender are reflected by sedentary risk factors within a university campus. METHODS:Following institutional ethical approval, 80 U.K. university campus employees were recruited, and 34 of them (age 47.8 ± 11.9 years, height 169 ± 1.0 cm,...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.12-0158-oa
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:Working long hours is a potential health hazard. Although self-reporting of working hours in various time frames has been used in epidemiologic studies, its validity is unclear. The objective of this study was to examine the validity and reproducibility of self-reported working hours among Japanese male emplo...
journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.15-0260-OA
更新日期:2016-07-22 00:00:00