Evaluation of half-mask respirator protection in styrene-exposed workers

Gobba, Fabriziomaria; Ghittori, S; Imbriani, Marcello; Cavalleri, A.

doi:10.1007/pl00007938

Cited by 14 publications

(8 citation statements)

References 15 publications

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“…If the ethical problem can be resolved we will be able to ask the workers not to wear the respirator and to perform a comparison. In addition, it was reported that there was an increase in urinary MA during the working week 24,29,30) . This means that the excretion of MA in urine is influenced by the previous day's exposure.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of the Efficiency of Respiratory Protective Equipment based on the Biological Monitoring of Styrene in Fibreglass Reinforced Plastics Industries

Nakayama

Nishide²,

Horike³

et al. 2004

Journal of Occupational Health

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Evaluation of the Efficiency of Respiratory Protective Equipment based on the Biological Monitoring of Styrene in FibreglassReinforced Plastics Industries: Shoji NAKAYAMA, et al. Department of Public Health, Okayama University Graduate School of Medicine and Dentistry-The purpose of the present study was to determine the efficiency of respiratory protective equipment in a fibreglass reinforced plastic factory by comparing results of environmental and biological monitoring of exposure to styrene. Five factories including 39 workers were investigated. Three types of respiratory protective equipment were tested: one was a half-mask air-purifying respirator equipped with a cartridge for organic solvents, another was a disposable gauze respirator impregnated with charcoal filter, and the third was a dust-proof respirator. The frequency of cartridge exchange of a half-mask respirator was twice a day only at one factory, and that was less than once a month at other factories. The site concentrations exceeded 20 ppm at 10 of the 82 sampling points (12.2%), and 22 of the 39 workers' (56.4%) personal exposure exceeded 20 ppm which is the current occupational exposure limit recommended by the Japan Society for Occupational Health. The efficiency of disposable gauze respirators and dust-proof respirators was low or rather zero. The average efficiency of half-mask respirators in which cartridges were exchanged twice a day and once a month was 83.6% and 46.6%, respectively. There was a significant disparity in the efficiency of the respirator depending on the frequency Received July 17, 2003; Accepted Dec 12, 2003 Correspondence to: S. Nakayama, Department of Public Health, Okayama University Graduate School of Medicine and Dentistry 2-5-1 Shikatacho, Okayama, 700-8558, Japan (e-mail: fabre@cc.okayama-u.ac.jp) of cartridge exchange (p <0.05). Overall this study showed that even though a half-mask respirator is used and its cartridge is exchanged every half a day, workers exposed to a styrene concentration at or over 122 ppm are expected to inhale more than 20 ppm of styrene.

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Section: Discussionmentioning

confidence: 99%

“…Gobba et al reported 30%-90% by evaluating the decrease in urinary styrene excretion 24) . Inaoka et al mentioned 49% in winter and 45% in summer by calculating from the regression line between individual exposures and the urinary MA 25) .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Efficiency of Respiratory Protective Equipment based on the Biological Monitoring of Styrene in Fibreglass Reinforced Plastics Industries

Nakayama

Nishide²,

Horike³

et al. 2004

Journal of Occupational Health

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“…In the study of Gobba et al 7) seven workers were examined who processed styrene containing materials by means of rollers, brushes and spray guns. The authors determined the concentrations of metabolites in urine and compared the activities during one week with and without using a half face mask.…”

Section: Discussionmentioning

confidence: 99%

“…imize the health effects caused by styrene exposure the use of respiratory masks is required. This issue has been addressed already by several studies resulting in different conclusions due to the variation in methods with which the studies were performed [7][8][9][10] .…”

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confidence: 99%

A Field Study to Determine the Effectiveness of Several Respiratory Protection Masks on the Styrene Exposure during Lamination Activities

2009

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The use of styrene-containing resins in boatbuilding can be associated with increased external styrene exposure of the laminators. During the use of different types of respiratory protection masks it is shown that only the application of air purifying respirators leads to a significant reduction of the internal styrene body burden of 83% when worn during 72% of the total work time. In this way it is possible to comply with or to stay clearly below the biological limit value of 600 mg MA + PGA/g creatinine (BAT-value).

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“…(1) analytical recovery, (2) sampling rate and capacity, (3) reverse diffusion, (4) temperature effects, (5) factor effects, (6) storage stability, and (7) precision and accuracy (105 standard (EN 482) has different criteria depending on the usage of the sampler, but for compliance purposes the corresponding figure is 30% (106).…”

Section: Comparison Of the Performance Of Passive Samplers With Othermentioning

confidence: 99%

Application of Passive Samplers in Monitoring of Organic Constituents of Air

Partyka

Zabiegała

Namieśnik

et al. 2007

Critical Reviews in Analytical Chemistry

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The principles of passive dosimetry, which has been known for over 100 years, are finding an ever increasing use in analytical practice and are being used as a convenient technique for isolation and enrichment of analytes from various environmental media. Due to its simplicity, a variety of designs, as well as the possibility of using a number of different final determination techniques, passive dosimetry has been applied in the analysis of organic and inorganic air pollutants, both in the outdoor and the indoor and workplace atmospheres, as well as in the monitoring of water and soil pollution. This paper is an attempt to review the designs of existing passive samplers, the media used to trap analytes and the techniques used for the release of the trapped analytes and their final determination.

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Evaluation of half-mask respirator protection in styrene-exposed workers

Cited by 14 publications

References 15 publications

Evaluation of the Efficiency of Respiratory Protective Equipment based on the Biological Monitoring of Styrene in Fibreglass Reinforced Plastics Industries

Evaluation of the Efficiency of Respiratory Protective Equipment based on the Biological Monitoring of Styrene in Fibreglass Reinforced Plastics Industries

A Field Study to Determine the Effectiveness of Several Respiratory Protection Masks on the Styrene Exposure during Lamination Activities

Application of Passive Samplers in Monitoring of Organic Constituents of Air

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