AIHA journal : a journal for the science of occupational and environmental health and safety最新文献

Speech intelligibility during respirator wear: influences of respirator speech diaphragm size and background noise. 呼吸器佩戴时的语音清晰度:呼吸器语音隔膜大小和背景噪声的影响。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/537.1

David M Caretti, Linda C Strickler

{"title":"Speech intelligibility during respirator wear: influences of respirator speech diaphragm size and background noise.","authors":"David M Caretti, Linda C Strickler","doi":"10.1202/537.1","DOIUrl":"https://doi.org/10.1202/537.1","url":null,"abstract":"This study assessed the effect of respirator speech device size on speech intelligibility and the impact of background noise on respirator communications effectiveness. Thirty-five subjects completed modified rhyme test (MRT) speech intelligibility testing procedures with and without a respirator under background noises of 40, 60, and 80 dBA. Respirator wear conditions included the use of one unmodified and three mechanical speech diaphragms modified to reduce the surface area of the vibrating inner membrane available for sound transmission. Average MRT scores decreased linearly as background noise levels increased for all conditions. Lower MRT scores were observed for all respirator speech diaphragm conditions compared to the nonrespirator condition within each noise category. Average MRT scores differed significantly between the unmodified speech diaphragm and one with a 70% reduced surface area with a 40-dBA background noise. However, MRT scores were similar between the modified and unmodified diaphragms at both the 60- and 80-dBA noise levels. These findings provide evidence that alternate designs of mechanical-type respirator speech devices can be achieved without further degradation of speech sound transmission.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"846-50"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24123397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of task-based estimates with full-shift measurements of noise exposure. 基于任务的估计与噪声暴露的全位移测量的比较。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/524.1

Noah S Seixas, Lianne Sheppard, Rick Neitzel

{"title":"Comparison of task-based estimates with full-shift measurements of noise exposure.","authors":"Noah S Seixas, Lianne Sheppard, Rick Neitzel","doi":"10.1202/524.1","DOIUrl":"https://doi.org/10.1202/524.1","url":null,"abstract":"Using a large data set of noise exposure measurements on construction workers, task-based (TB) and full-shift (FS) exposure levels were compared and analyzed for the sources and magnitudes of the error associated with this methodology. Data-logging dosimeters recorded A-weighted sound pressure levels in decibels using Occupational Safety and Health Administration criteria for every minute of monitoring and were combined with information from task cards completed by subjects. Task-related information included trade, construction site type, location, activity, and tool. A total of 502 FS measurements were made, including 248,677 min of exposure on five construction trades. Six TB models of varying degrees of specificity were fit to the minute-level data and the results used to obtain TB estimates of the daily FS exposure levels. The TB estimates were derived using the predictions alone and also including subject and shift-specific residual means and variances. The predictions alone, which ignore within-task variability, produced a significant negative bias that was corrected by incorporation of the residual variance. This bias is only an issue in this setting in which the exposure of interest is noise, which follows a nonlinear averaging relationship. These estimates explained 10 to 60% of the variability in FS measures; adding the residual mean produced estimates that explained about 90% of the variability. In summary, TB estimates are important for exposure estimation when task time varies substantially. However, TB estimates include a substantial degree of error when there is large interindividual or intershift variability in exposure levels for a given task. Methods to improve the prediction of task-associated exposure, or adjusting for individual and shift differences, are needed.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"823-9"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24123398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of task-based estimates with full-shift measurements of noise exposure. 基于任务的估计与噪声暴露的全位移测量的比较。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1080/15428110308984878

N. Seixas, L. Sheppard, R. Neitzel

{"title":"Comparison of task-based estimates with full-shift measurements of noise exposure.","authors":"N. Seixas, L. Sheppard, R. Neitzel","doi":"10.1080/15428110308984878","DOIUrl":"https://doi.org/10.1080/15428110308984878","url":null,"abstract":"Using a large data set of noise exposure measurements on construction workers, task-based (TB) and full-shift (FS) exposure levels were compared and analyzed for the sources and magnitudes of the error associated with this methodology. Data-logging dosimeters recorded A-weighted sound pressure levels in decibels using Occupational Safety and Health Administration criteria for every minute of monitoring and were combined with information from task cards completed by subjects. Task-related information included trade, construction site type, location, activity, and tool. A total of 502 FS measurements were made, including 248,677 min of exposure on five construction trades. Six TB models of varying degrees of specificity were fit to the minute-level data and the results used to obtain TB estimates of the daily FS exposure levels. The TB estimates were derived using the predictions alone and also including subject and shift-specific residual means and variances. The predictions alone, which ignore within-task variability, produced a significant negative bias that was corrected by incorporation of the residual variance. This bias is only an issue in this setting in which the exposure of interest is noise, which follows a nonlinear averaging relationship. These estimates explained 10 to 60% of the variability in FS measures; adding the residual mean produced estimates that explained about 90% of the variability. In summary, TB estimates are important for exposure estimation when task time varies substantially. However, TB estimates include a substantial degree of error when there is large interindividual or intershift variability in exposure levels for a given task. Methods to improve the prediction of task-associated exposure, or adjusting for individual and shift differences, are needed.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"59 1","pages":"823-9"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84003647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 50

The application of a job exposure matrix in the natural gas industry. 工作暴露矩阵在天然气工业中的应用。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1080/15428110308984876

N. Maher

{"title":"The application of a job exposure matrix in the natural gas industry.","authors":"N. Maher","doi":"10.1080/15428110308984876","DOIUrl":"https://doi.org/10.1080/15428110308984876","url":null,"abstract":"A questionnaire was designed, implemented, and analyzed, using a job exposure matrix format, to profile jobs in the Pipeline Division of a natural gas company with respect to possible hazardous exposures. The categories of chemical, physical, ergonomic, biological, and psychological hazards were surveyed. The first stage was to formulate and confirm a list of hazardous agents extant within the Pipeline Operations. This was done by making on-site observations and interviewing safety supervisors and workers, as well as by exploring the literature on the natural gas industry. The second stage of the project entailed the collection of data about whether a particular hazardous agent was present at a location, and if so, which workers were exposure to it, and at what intensity and frequency they were exposed. This assessment was made by groups identified as expert assessors, senior workers who were familiar with the processes and range of job titles at their locations. These experienced workers rated all job titles for workers at that site. The final stage of the project was to critically examine and validate the data collected. Three analyses were performed. The first was a comparison of the assessments with known outcomes of the medical surveillance testing that was completed in 1995. Secondly, the agreement between the assessments done by the expert assessor group, and a rating done by the jobholder, was examined. Finally, consideration was given to the sureness expressed by each of the rating groups about the analysis they had provided.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"121 6 1","pages":"806-14"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77449910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Facial dimensions and predictors of fit for half-mask respirators in Koreans. 韩国人的面部尺寸和半面罩呼吸器适合度的预测因素。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1080/15428110308984877

Don-Hee Han, Kook-Lyeol Choi

{"title":"Facial dimensions and predictors of fit for half-mask respirators in Koreans.","authors":"Don-Hee Han, Kook-Lyeol Choi","doi":"10.1080/15428110308984877","DOIUrl":"https://doi.org/10.1080/15428110308984877","url":null,"abstract":"This study investigated the relationship between facial dimensions and the fit of half-mask respirators using fit factors and selected good facial dimension predictor(s) of fit for designing respirators for Korean workers. Three different brands of half-mask respirators-YS, SG, and 3M-were fit-tested on 112 men and 38 women using TSI Portacount 8020, and fit factors were determined. Before fit-testing, 10 facial dimensions were measured. Data were analyzed by descriptive statistics, Pearson's correlation analysis, and quadratic polynomial regression analysis with log-transformed fit factors (LNFF). However, some of the relationships between LNFF and facial dimensions in brand/gender subgroups were found to be curvilinear rather than linear. Because this result indicated that a multiple polynomial regression model including quadratic terms might be more appropriate than a multiple linear regression, data were also analyzed with a quadratic term by examination of the coefficient of partial correlation. No common facial dimension variables were found to be significant for all nine brand/gender subgroups, but the coefficient of regression for the linear term of the bitragion-menton arc was significant in five of nine brand/gender subgroups including male subjects of all three respirator brands. The 3M mask had the highest coefficient of determination values compared with other brands. Using the quadratic term for the 3M mask, face width (bizygomatic breadth) and nose protrusion were good predictors of half-mask fit. In four of nine brand/gender subgroups, nose protrusion was a good predictor of fit through analysis using a quadratic term. Results indicate that face width, bitragion-menton arc, and nose protrusion should be preferentially considered when designing a half-mask respirator for Korean workers.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"11 1","pages":"815-22"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81786757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 44

The effect of the size of openings on contaminant control between two adjacent spaces with differing air pressures. 不同空气压力下两个相邻空间间开口尺寸对污染物控制的影响。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1080/15428110308984874

Chung Kee-Chiang, Yang Chin-Yuan, Chen Chun-wan

{"title":"The effect of the size of openings on contaminant control between two adjacent spaces with differing air pressures.","authors":"Chung Kee-Chiang, Yang Chin-Yuan, Chen Chun-wan","doi":"10.1080/15428110308984874","DOIUrl":"https://doi.org/10.1080/15428110308984874","url":null,"abstract":"Maintaining a pressure difference between zones or rooms is an important method of controlling the spread of air contaminants. Where it is well managed, this method will provide better control with less energy consumption, particularly in health care or electronic component manufacturing facilities. However, it is difficult to control a multizone system to maintain a pressure difference when there is an opening between two adjacent zones. To prevent the spread of contaminants into the \"clean\" zone, it is necessary to maintain some level of pressure difference. This study investigates the effect of changing the opening size between two small rooms and evaluates the contaminant dispersion at varying pressure difference values by using a tracer gas technique. The influence of several parameters, such as air pressure difference, surface area of opening, and supply air volume between two interior zones on contaminant transportation through an opening was investigated. The control pressure differences between two adjacent spaces were arranged from 2.49 to 14.69 Pa. Pressure difference was found to be an effective predictor of contaminant diffusion. An empirical relationship between pressure and opening size is presented between two rooms that will predict contaminant control required levels. The coefficient of determination (R(2)) of this correlation is 0.9226.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"69 1","pages":"792-8"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87935018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fatigue in the forearm resulting from low-level repetitive ulnar deviation. 前臂疲劳是由低度重复性尺偏引起的。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/515.1

Jack Tigh Dennerlein, Vincent M Ciriello, Kirsty J Kerin, Peter W Johnson

{"title":"Fatigue in the forearm resulting from low-level repetitive ulnar deviation.","authors":"Jack Tigh Dennerlein, Vincent M Ciriello, Kirsty J Kerin, Peter W Johnson","doi":"10.1202/515.1","DOIUrl":"https://doi.org/10.1202/515.1","url":null,"abstract":"This study measured low-frequency fatigue (LFF) in the extensor carpi ulnaris (ECU) muscle while workers completed a repetitive ulnar deviation task. Using a repeated measures design, 10 healthy women participated in three conditions, each lasting 2 consecutive days: a control condition in which subjects remained inactive, and two repetitive work conditions involving repeated ulnar deviation of the wrist at 20 and 25 repetitions per minute at individual workloads deemed acceptable for 8 hours through a psychophysical protocol. LFF of the ECU muscle and self-reported levels of fatigue were recorded eight times throughout the control and workdays before (time 0), during (2, 4.25, 6.75, 8 hours), and after (9, 10, and 11 hours) exposure. The ratio of the isometric force produced by electrical stimulus at 20 pulses per second (pps) to the isometric force produced by 50 pps provided the measure of LFF. The ratios were lower on workdays compared with the control days, indicating the presence of LFF during repetitive work. During repetitive work the ratios decreased during the day, indicating the muscles fatigued as the day progressed. The psychophysically determined workloads, although not creating noticeable discomfort to the subjects, were high enough to create low levels of muscle fatigue.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"799-805"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24123400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The thermo-hand method: evaluation of a new indicator pad for acid permeation of chemical protective gloves. 热手法:一种新型化学防护手套防酸指示剂的评价。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/489.1

Evanly Vo, Jonathan Nicholson, Pengfei Gao, Zhenzhen Zhuang, Stephen P Berardinelli

{"title":"The thermo-hand method: evaluation of a new indicator pad for acid permeation of chemical protective gloves.","authors":"Evanly Vo, Jonathan Nicholson, Pengfei Gao, Zhenzhen Zhuang, Stephen P Berardinelli","doi":"10.1202/489.1","DOIUrl":"https://doi.org/10.1202/489.1","url":null,"abstract":"The thermo-hand method was developed to evaluate a new indicator pad for acid permeation through chemical protective gloves under in-use conditions (controlled conditions for the hand's skin temperature, hand movements, and relative humidity inside gloves). An indicator pad was used to detect both organic and inorganic acid permeation through glove materials. Breakthrough times for five types of gloves were determined and found to range from 5 to 308 min for propionic acid, from 4 to 293 min for acrylic acid, and from 15 min to >6 hours for HCl. Quantification was performed for propionic and acrylic acids following solvent desorption and gas chromatography. Both acids exhibited >99% adsorption (including the volume of acid, which reacted with an indicator to contribute the color change) on the pads at a spiking level of 1.8 micro L for each acid. Acid recovery for the system was calculated for each acid, with results ranging from 52-72% (RSD < or =4.0%) for both acids over the spiking range 0.2-1.8 micro L. The quantitative mass of the acids on the pads at the time of breakthrough detection ranged from 253-276 and 270-296 micro g/cm(2) for propionic acid and acrylic acid, respectively. The thermo-hand method and a new acid indicator pad together should be useful in detecting, collecting, and quantitatively analyzing acid permeation samples in the workplace.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"771-6"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24124379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Health and safety management system audit reliability pilot project. 健康安全管理体系审核可靠性试点项目。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/472.1

D T Dyjack, C F Redinger, R S Ridge

{"title":"Health and safety management system audit reliability pilot project.","authors":"D T Dyjack, C F Redinger, R S Ridge","doi":"10.1202/472.1","DOIUrl":"https://doi.org/10.1202/472.1","url":null,"abstract":"This pilot study assessed occupational health and safety (OHS) management system audit finding reliability using a modified test-retest method. Two industrial hygienists with similar training and education conducted four, 1-day management system audits in four dissimilar organizational environments. The researchers examined four auditable sections (employee participation, training, controls, and communications) contained in a publicly available OHS management system assessment instrument. At each site, 102 auditable clauses were evaluated using a progressive 6-point scale. The team examined both the consistency of and agreement between the scores of the two auditors. Consistency was evaluated by calculating the Pearson r correlations for the two auditors' scores at each site and for each section within each site. Pearson correlations comparing overall scores for each site were all very low, ranging from 0.206 to 0.543. Training and communication system assessments correlated the highest, whereas employee participation and control system scores correlated the least. To measure agreement, t-tests were first calculated to determine whether the differences were statistically significant. Aggregate mean scores for two of the four sites were significantly different. Of the 16 total sections evaluated (i.e., 4 sections per site), seven scores were significantly different. Finally, the agreement of the scores between the two auditors for the four sites was evaluated by calculating two types of intraclass correlation coefficients, all of which failed to meet the minimum requirement for agreement. These findings suggest that opportunities for improving the reliability of the instrument and the audit process exist. Future research should include governmental and commercial OHS program assessments and related environmental management systems and their attendant audit protocols.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"785-91"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24124297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facial dimensions and predictors of fit for half-mask respirators in Koreans. 韩国人的面部尺寸和半面罩呼吸器适合度的预测因素。

AIHA journal : a journal for the science of occupational and environmental health and safety Pub Date : 2003-11-01 DOI: 10.1202/501.1

Don-Hee Han, Kook-Lyeol Choi

{"title":"Facial dimensions and predictors of fit for half-mask respirators in Koreans.","authors":"Don-Hee Han, Kook-Lyeol Choi","doi":"10.1202/501.1","DOIUrl":"https://doi.org/10.1202/501.1","url":null,"abstract":"This study investigated the relationship between facial dimensions and the fit of half-mask respirators using fit factors and selected good facial dimension predictor(s) of fit for designing respirators for Korean workers. Three different brands of half-mask respirators-YS, SG, and 3M-were fit-tested on 112 men and 38 women using TSI Portacount 8020, and fit factors were determined. Before fit-testing, 10 facial dimensions were measured. Data were analyzed by descriptive statistics, Pearson's correlation analysis, and quadratic polynomial regression analysis with log-transformed fit factors (LNFF). However, some of the relationships between LNFF and facial dimensions in brand/gender subgroups were found to be curvilinear rather than linear. Because this result indicated that a multiple polynomial regression model including quadratic terms might be more appropriate than a multiple linear regression, data were also analyzed with a quadratic term by examination of the coefficient of partial correlation. No common facial dimension variables were found to be significant for all nine brand/gender subgroups, but the coefficient of regression for the linear term of the bitragion-menton arc was significant in five of nine brand/gender subgroups including male subjects of all three respirator brands. The 3M mask had the highest coefficient of determination values compared with other brands. Using the quadratic term for the 3M mask, face width (bizygomatic breadth) and nose protrusion were good predictors of half-mask fit. In four of nine brand/gender subgroups, nose protrusion was a good predictor of fit through analysis using a quadratic term. Results indicate that face width, bitragion-menton arc, and nose protrusion should be preferentially considered when designing a half-mask respirator for Korean workers.","PeriodicalId":83618,"journal":{"name":"AIHA journal : a journal for the science of occupational and environmental health and safety","volume":"64 6","pages":"815-22"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24124418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0