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Air Quality, Atmosphere & Health

, Volume 10, Issue 3, pp 371–379 | Cite as

Underestimation of respirable crystalline silica (RCS) compliance status among the granite crusher operators in Malaysian quarries

  • Suhaily Amran
  • Mohd Talib LatifEmail author
  • Md Firoz Khan
  • Eric Goh
  • Abdul Mutalib Leman
  • Shoffian Amin Jaafar
Article

Abstract

The aim of this study is to determine exposure levels as well as compliance status on respirable dust and respirable crystalline silica (RCS)-quartz exposure among crusher operators at Malaysian quarries. The exposure level at each crushing process was compared. Monitoring was performed among 70 crusher operators at nine quarries. Eight hours long-term personal samples were collected according to the National Institute of Occupational Safety and Health (NIOSH) Manual Analytical Method (NMAM) 0600 for respirable dust and NMAM 7500 for respirable crystalline silica (RCS-quartz). A questionnaire on silica dust monitoring and control was also sent to all granite quarries in Malaysia. The results indicated that the mean percentage of RCS-quartz in silica dust was 23.7 %. The mean value for crusher operators’ exposure was 0.426 mg m−3 for respirable dust and 0.091 mg m−3 for RCS-quartz. Around 30.5 % of crusher operators were exposed to RCS-quartz levels above the permissible exposure limit (PEL) based on Malaysian’s Occupational Safety and Health Regulations 2000. Operators in charge of combined secondary and tertiary crusher plants were exposed to 0.116 mg m−3 of RCS-quartz, which was higher compared to those operating individual plants. Results on posted questionnaire indicate that Malaysian quarries are more preferred to perform respirable dust monitoring (37 %) instead of specific RCS-quartz monitoring (22.6 %). Low exposure to respirable dust may conceal the need to justify comprehensive crystalline silica dust monitoring and lead to underestimation of RCS-quartz exposure. A high percentage of non-compliance exposure on personal RCS-quartz exposure should establish the need for quarry management to focus on better implementation of dust control systems.

Keywords

Respirable crystalline silica Quartz Respirable dust Compliance Quarries 

Notes

Acknowledgment

The authors would like to thank National Institute of occupational Safety and Health (NIOSH) of Malaysia for providing research grant (06/NIOSH/03-06/NG 0018), laboratory facilities and manpower for this study. Also, thanks to Malaysian Ministry of Higher Education for Fundamental Research Grant (FRGS/1/2015/WAB03/UKM/01/1). Special thanks to Dr. Rose Norman for the assistance with the proofreading of this manuscript.

Compliance with ethical standards

Research protocol was approved by NIOSH Malaysia ethics committee.

References

  1. Abdul-Wahab SA, Fgaier H, Elkamel A, Chan K (2014) Air quality assessment for the proposed Miller Braeside quarry expansion in Canada: TSP. Air Qual Atmos Health 8:573–589CrossRefGoogle Scholar
  2. ACGIH (2015) TLVs and BEI. Threshold limit value for chemical substances and Physical Agent & Biological Exposure Indices. American Conference of Governmental Industrial Hygiene (ACGIH), CincinnatiGoogle Scholar
  3. ALS, 2016. American Lung Association. Learn About Silicosis. Link: http://www.lung.org/lung-health-and-diseases/lung-disease-lookup/silicosis
  4. Bahrami AR, Golbabai F, Mahjub H, Qorbani F, Aliabadi M, Barqi M (2008) Determination of exposure to respirable quartz in the stone crushing units at Azendarian-West of Iran. Ind Health 46:404–408CrossRefGoogle Scholar
  5. Bratviet M, Moen BE, Mashalla YJS, Maalim H (2003) Dust exposure during small-scale mining in Tanzania: a pilot study. Ann Occup Hyg 47:235–240Google Scholar
  6. Brown TP, Rushton LAP (2005) Mortality in the UK industrial silica sand industry: 1. Assessment of exposure to respirable crystalline silica. J Occup Environ Med 62:442–445. doi: 10.1136/oem.2004.017715 CrossRefGoogle Scholar
  7. DOSH (2000) Occupational safety and health (Use and standard of exposure chemical hazardous to health) regulations 20000. Department of Occupational Safety and Health, Kuala LumpurGoogle Scholar
  8. DOSM (2011) Economic census 2011 mining and quarrying. Stone quarrying sub sector. Department of Statistics, Kuala LumpurGoogle Scholar
  9. Gautam S, Kumar P, Patra AK (2016) Occupational exposure to particulate matter in three Indian opencast mines. Air Qual Atmos Health 9:143–158CrossRefGoogle Scholar
  10. Gholami A, Fani MJ, Sadeghi N (2012) Occupational exposure determination to silica dust in an iron-stone ore and comparison with standard. Int J Collab Res Intern Med 4:1141–1149Google Scholar
  11. Goh E, Lazim AT (2010) Advance in industrial dust control management. In: Goh E, Lazim AT, Lin CN, Lip MM, Fat LK, Devi N (eds) Quarries and Quarrying: Sustainable Developement, Green Technology and Best Practice Institute of Quarrying Malaysia, Selangor, pp 243–262Google Scholar
  12. Green DA, McAlpine G, Semple S, Cowie H, Seaton A (2008) Mineral dust exposure in young Indian adults: an effect on lung growth? Occup Environ Med 65:306–310. doi: 10.1136/oem.2007.032797 CrossRefGoogle Scholar
  13. Hayumbu P, Robins TG, Key-Schwartz R (2008) Cross-sectional silica exposure measurements at two Zambian copper mines of Nkana and Mufulira. Int J Environ Res Public Health 5:86–90CrossRefGoogle Scholar
  14. IARC (1997) Silica, some silicates, coal dust and para-aramid fibrils: IARC monographs on the evaluation of carcinogenic risks to humans vol 68. International Agency for Research Cancer (IARC), World Health Organization(WHO), LyonGoogle Scholar
  15. IARC (2012) International Agency for Research on Cancer. Silica dust, crystalline, in the form of quartz or cristobalite in silica, some silicate, coal dust and para-aramid fibril, IARC Monographs Evaluation Carcinogen Risk to Human. Link: http://monographs.iarc.fr/ENG/Monographs/vol100C/mono100C.pdf
  16. Kane F (1997) The campaign to end silicosis. Job Safety Health. Link: http:/www.osha.gov
  17. Kumar CHK, Reddy MN, Singh MSB, Krishna B, Sasikala P, ShravyaKeerthi G, Kumar SAV, Kareem S (2014) Deterioration of pulmonary function in stone quarry workers. Biomed Res 25:261–266Google Scholar
  18. Lin CN, Goh E, Devi N (2012) Quarry directory Malaysia 2012. IQM, Puchong, SelangorGoogle Scholar
  19. Liu Y, Steenland K, Rong Y, Hnizdo E, Huang X, Zhang H, Shi T, Sun Y, Wu T, Chen W (2013) Exposure-response analysis and risk assessment for lung cancer in relationship to silica exposure: a 44-year cohort study of 34,018 workers. Am J Epidemiol 178:1424–1433CrossRefGoogle Scholar
  20. Mohamad ET, Noor MM, Saad R (2010) Potential effects of quarry operations on workforce safety. In: Goh E, Lazim AT, Lin CN, Lip MM, Fat LK, Devi N (eds) Quarries and quarrying: sustainable development, green technology and best practices. Institute of Quarrying Malaysia, SelangorGoogle Scholar
  21. Mulhausen JR (2013) Multilingual IHSTAT+ v. 235. American Industrial Hygiene Association (AIHA), link: www.aiha.org
  22. Musa R, Naing L, Ahmad Z, Nordin R (2002) Respiratory symptom and pulmonary function among male quarry workers in Kelantan. Malays J Public Health Med 2(1):54–57Google Scholar
  23. NIOSH, 1998. Particulate not otherwise regulated, respirable. Method 0600, National Institute on Occupational Safety and Health. Manual of analytical method (NMAM). link: http://www.cdc.gov/niosh/docs/2003-154/pdfs/0600.pdf
  24. NIOSH, 2003. National Institute on Occupational Safety and Health. Manual Analytical Method No 7500: Silica, Crystalline, by X-ray difractometer (XRD) via filter deposition. National Institute on Occupational Safety and Health. link: http://www.cdc.gov/niosh/docs/2003-154/pdfs/7500.pdf
  25. Samimi B, Ziskind M, Weill H (1978) The relation of silica dust to accelerated silicosis. Ecotoxicol Environ Saf 1:429–436CrossRefGoogle Scholar
  26. Scarselli A, Corfiati M, Marzio DD, Iavicoli S (2014) Evaluation of workplace exposure to respirable crystalline silica in Italy. Int J Occup Environ Health 20:301–307CrossRefGoogle Scholar
  27. SKC (2014) GS-3 Respirable dust cyclone, listed in OSHA proposed silica rule: product catalog SKC. Inc., DorsetGoogle Scholar
  28. Smith DK (1992) Issue and controversy: the measurement of crystalline silica. Paper presented at the International SymposiumGoogle Scholar
  29. Ugbogu OC, Ohakwe J, Foltescu V (2009) Occurrence of respiratory and skin problems among manual stone quarrying workers. Afr J Resp Med 2009:23–26Google Scholar
  30. Workplace Health and Safety Quensland (2011) Silica-identifying and managing crystalline silica dust exposure. PN 10121 version 2. Department of Justice and Attorney-General, QueenslandGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.Laboratory Division, Consultation Research and Development DepartmentNational Institute of Occupational Safety and Health (NIOSH)Bandar Baru BangiMalaysia
  2. 2.School of Environmental and Natural Resources Science, Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaBangiMalaysia
  3. 3.Institute for Environment and Development (Lestari)Universiti Kebangsaan Malaysia (UKM)BangiMalaysia
  4. 4.Centre for Tropical Climate Change System (IKLIM), Institute of Climate ChangeUniversiti Kebangsaan MalaysiaBangiMalaysia
  5. 5.School of Material and Mineral Resource EngineeringUnversiti Sains MalaysiaNibong TebalMalaysia
  6. 6.Department of Mechanical Engineering Technology, Faculty of Engineering TechnologyUniversiti Tun Hussein Onn MalaysiaBatu PahatMalaysia

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