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Air monitoring of aromatic hydrocarbons during automobile spray painting for developing change schedule of respirator cartridges.

Jahangiri M, Adl J, Shahtaheri SJ, Kakooe H, Rahimi Forushani A, Ganjali MR - J Environ Health Sci Eng (2014)

Bottom Line: Factors effecting service life of cartridges were evaluated, including the amount of atmospheric contamination with aromatic hydrocarbon vapors in the workplace, temperature, and relative humidity of the air.The cartridge change schedule was not effective and could no longer provide adequate protection against organic contaminants for sprayers.Change schedules for respirator cartridges should be reduced from 16-24 hours to 4 hours.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. adljavad@tums.ac.ir.

ABSTRACT
In the absence of End of Service Life Indicator (ESLI), a cartridge change schedule should be established for ensuring that cartridges are changed before their end of service life. Factors effecting service life of cartridges were evaluated, including the amount of atmospheric contamination with aromatic hydrocarbon vapors in the workplace, temperature, and relative humidity of the air. A new change schedule was established based on comparing the results of air monitoring and workplace conditions, laboratory experiment, and the NIOSH MultiVapor software. Spray painters were being exposed to aromatic hydrocarbons in a range exceeding occupational exposure limits. The cartridge change schedule was not effective and could no longer provide adequate protection against organic contaminants for sprayers. Change schedules for respirator cartridges should be reduced from 16-24 hours to 4 hours. NIOSH's service life software program could be applied to developing cartridge change schedules.

No MeSH data available.


Related in: MedlinePlus

Schematic diagram of the set-up for field testing of cartridge change-out schedule.
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Figure 1: Schematic diagram of the set-up for field testing of cartridge change-out schedule.

Mentions: The efficacy of the existing change schedule of air-purifying respirator cartridges used in the automobile spray painting workshop was investigated using a procedure recommended by OSHA [3]. The apparatus was used for this purpose, was made of detector tubes (as direct reading instruments), a leak free cartridge holder, adaptors, inert tubing and Teflon tee, sampling tube, and a sampling pump, as shown in FigureĀ 1. For testing the efficacy of the existing change schedule, immediately before changing the cartridges being used in the workplace, the breakthrough of benzene from 10 randomly selected cartridges was tested as air was passing through them. If breakthrough of benzene was detected above the occupational exposure limit, it would show that the existing industry schedule for changing the cartridges is not efficient and a new cartridge change schedule should be developed.


Air monitoring of aromatic hydrocarbons during automobile spray painting for developing change schedule of respirator cartridges.

Jahangiri M, Adl J, Shahtaheri SJ, Kakooe H, Rahimi Forushani A, Ganjali MR - J Environ Health Sci Eng (2014)

Schematic diagram of the set-up for field testing of cartridge change-out schedule.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3928618&req=5

Figure 1: Schematic diagram of the set-up for field testing of cartridge change-out schedule.
Mentions: The efficacy of the existing change schedule of air-purifying respirator cartridges used in the automobile spray painting workshop was investigated using a procedure recommended by OSHA [3]. The apparatus was used for this purpose, was made of detector tubes (as direct reading instruments), a leak free cartridge holder, adaptors, inert tubing and Teflon tee, sampling tube, and a sampling pump, as shown in FigureĀ 1. For testing the efficacy of the existing change schedule, immediately before changing the cartridges being used in the workplace, the breakthrough of benzene from 10 randomly selected cartridges was tested as air was passing through them. If breakthrough of benzene was detected above the occupational exposure limit, it would show that the existing industry schedule for changing the cartridges is not efficient and a new cartridge change schedule should be developed.

Bottom Line: Factors effecting service life of cartridges were evaluated, including the amount of atmospheric contamination with aromatic hydrocarbon vapors in the workplace, temperature, and relative humidity of the air.The cartridge change schedule was not effective and could no longer provide adequate protection against organic contaminants for sprayers.Change schedules for respirator cartridges should be reduced from 16-24 hours to 4 hours.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. adljavad@tums.ac.ir.

ABSTRACT
In the absence of End of Service Life Indicator (ESLI), a cartridge change schedule should be established for ensuring that cartridges are changed before their end of service life. Factors effecting service life of cartridges were evaluated, including the amount of atmospheric contamination with aromatic hydrocarbon vapors in the workplace, temperature, and relative humidity of the air. A new change schedule was established based on comparing the results of air monitoring and workplace conditions, laboratory experiment, and the NIOSH MultiVapor software. Spray painters were being exposed to aromatic hydrocarbons in a range exceeding occupational exposure limits. The cartridge change schedule was not effective and could no longer provide adequate protection against organic contaminants for sprayers. Change schedules for respirator cartridges should be reduced from 16-24 hours to 4 hours. NIOSH's service life software program could be applied to developing cartridge change schedules.

No MeSH data available.


Related in: MedlinePlus