OCCUPATIONAL EXPOSURE TO ROCKWOOL FIBERS AND A SURVEY OF PULMONARY FUNCTIONAL TEST IN A ROCKWOOL PRODUCTION FACTORY

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MORTAZAVI S.B.; KHAVANIN A.; GHOLAMNIA R.

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Journal: Daneshvar Medicine: Basic and Clinical Research Journal Year:2005 | Volume:12 | Issue:58 Page(s): 53-60

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Title

OCCUPATIONAL EXPOSURE TO ROCKWOOL FIBERS AND A SURVEY OF PULMONARY FUNCTIONAL TEST IN A ROCKWOOL PRODUCTION FACTORY

Author(s)

MORTAZAVI S.B. | | KHAVANIN A. | GHOLAMNIA R. | Issue Writer Certificate

Keywords

ROCKWOOLQ4

SAMPLINGQ2

COUNTING FIBERSQ4

PHASE CONTRAST MICROSCOPYQ4

OCCUPATIONAL EXPOSURE LEVEL (OEL)Q2

SPIROMETERYQ3

Abstract

Introduction: Today, the numerous uses of insulation, such as ROCKWOOL, glass wool, slog wool and so on, have increased to control and save energy in industries. Due to numerous applications, exposure level is increased in production, handling, installation and removal. Occupational exposure to fibers has been associated with irritation of skin and respiratory tract. The objective of this study was to determine occupational exposure to rock wool fibers.Material & Methods: The standard method for the determination of airborne fibrous particles in the workplace is NIOSH Method 7400 by PHASE CONTRAST MICROSCOPY. In NIOSH Method 7400, samples are collected on 25-mm cellulose ester filters. The filter is treated to make it transparent and then is analyzed by microscopy at 400-450x magnification, with phase-contrast illumination, using a Walton-Beckett graticule. Using counting rules B, only fibers <3 mm in diameter and >5 mm in length with aspect ratios of 5:1 are counted. Pulmonary function test is carried out by P.F.T spirometer to obtain VC and FVC test. Respiratory questionnaire is completed for case – control groups. Results: The result of counting fiber showed different levels in worker's breathing zone. The greatest and lowest measurement was found in saw unit and automatic package, respectively. Mean of exposure TWA 8 hours and actual exposure is 0.51 and 0.7 fiber/cc, respectively. Discussion and Conclusion: Occupational exposure does not exceed TLVTWA (ACGIH) and T-test has not been significantly different from occupational exposure level (p<0.001). Due to overtime work, occupational exposure was high and Hest was significantly different from OEL (p=0.001). Based on Hest significant difference was not found among VC, FVC and FEV1 and P values were 0.0124, 0.059 and 0.27, respectively.

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APA: Copy

MORTAZAVI, S.B., KHAVANIN, A., & GHOLAMNIA, R.. (2005). OCCUPATIONAL EXPOSURE TO ROCKWOOL FIBERS AND A SURVEY OF PULMONARY FUNCTIONAL TEST IN A ROCKWOOL PRODUCTION FACTORY. DANESHVAR MEDICINE, 12(58), 53-60. SID. https://sid.ir/paper/30684/en

Vancouver: Copy

MORTAZAVI S.B., KHAVANIN A., GHOLAMNIA R.. OCCUPATIONAL EXPOSURE TO ROCKWOOL FIBERS AND A SURVEY OF PULMONARY FUNCTIONAL TEST IN A ROCKWOOL PRODUCTION FACTORY. DANESHVAR MEDICINE[Internet]. 2005;12(58):53-60. Available from: https://sid.ir/paper/30684/en

IEEE: Copy

S.B. MORTAZAVI, A. KHAVANIN, and R. GHOLAMNIA, “OCCUPATIONAL EXPOSURE TO ROCKWOOL FIBERS AND A SURVEY OF PULMONARY FUNCTIONAL TEST IN A ROCKWOOL PRODUCTION FACTORY,” DANESHVAR MEDICINE, vol. 12, no. 58, pp. 53–60, 2005, [Online]. Available: https://sid.ir/paper/30684/en

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