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Comparative pulmonary toxicity of blasting sand and five substitute abrasive blasting agents.
J Toxicol Environ Health A. 2002 Aug 23; 65(16):1121-40.JT

Abstract

Blasting sand is used for abrasive blasting, but its inhalation is associated with pulmonary inflammation and fibrosis. Consequently, safer substitute materials for blasting sand are needed. In a previous study from this laboratory, the comparative pulmonary toxicity of five abrasive blasting substitutes and blasting sand was reported. In this study, the pulmonary toxicity of blasting sand was compared to five additional abrasive blasting substitutes: steel grit, copper slag, nickel slag, crushed glass, and olivine. Exposed rats received by intratracheal instillation 10 mg of respirable-size particles of blasting sand or an abrasive blasting substitute, while controls were instilled with vehicle. Pulmonary inflammation, damage, and fibrosis were examined 28 d postexposure. Pulmonary inflammation was monitored by determining bronchoalveolar lavage polymorphonuclear cell counts and alveolar macrophage activation by chemiluminescence. Pulmonary damage was assessed by acellular bronchoalveolar (BAL) fluid serum albumin concentrations and lactate dehydrogenase activities. Histological examination of lung tissue samples was made to assess the severity and distribution of pulmonary fibrosis, alveolitis, and alveolar epithelial cell hypertrophy and hyperplasia. In comparison to blasting sand, olivine exposed rats had higher levels of pulmonary inflammation and damage with a similar level of fibrosis. Steel grit-exposed rats had lower levels of pulmonary inflammation and damage, and did not develop fibrosis. However, steel grit-exposed rats had a level of epithelial cell hypertrophy and hyperplasia similar to blasting sand. The other abrasive blasting substitutes gave a mixed profile of toxicity. The data demonstrate that steel grit produced less acute pulmonary toxicity than blasting sand or any of the other abrasive blasting substitutes. Notwithstanding, the data also suggest that chronic exposure to steel grit may pose a health risk due to its effects on epithelial cell proliferation in the lung.

Authors+Show Affiliations

Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1095 Willowdale Road, M/S 2015, Morgantown, WV 26505, USA. DPorter@cdc.govNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

12167212

Citation

Porter, Dale W., et al. "Comparative Pulmonary Toxicity of Blasting Sand and Five Substitute Abrasive Blasting Agents." Journal of Toxicology and Environmental Health. Part A, vol. 65, no. 16, 2002, pp. 1121-40.
Porter DW, Hubbs AF, Robinson VA, et al. Comparative pulmonary toxicity of blasting sand and five substitute abrasive blasting agents. J Toxicol Environ Health A. 2002;65(16):1121-40.
Porter, D. W., Hubbs, A. F., Robinson, V. A., Battelli, L. A., Greskevitch, M., Barger, M., Landsittel, D., Jones, W., & Castranova, V. (2002). Comparative pulmonary toxicity of blasting sand and five substitute abrasive blasting agents. Journal of Toxicology and Environmental Health. Part A, 65(16), 1121-40.
Porter DW, et al. Comparative Pulmonary Toxicity of Blasting Sand and Five Substitute Abrasive Blasting Agents. J Toxicol Environ Health A. 2002 Aug 23;65(16):1121-40. PubMed PMID: 12167212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative pulmonary toxicity of blasting sand and five substitute abrasive blasting agents. AU - Porter,Dale W, AU - Hubbs,Ann F, AU - Robinson,Victor A, AU - Battelli,Lori A, AU - Greskevitch,Mark, AU - Barger,Mark, AU - Landsittel,Douglas, AU - Jones,William, AU - Castranova,Vincent, PY - 2002/8/9/pubmed PY - 2002/9/6/medline PY - 2002/8/9/entrez SP - 1121 EP - 40 JF - Journal of toxicology and environmental health. Part A JO - J Toxicol Environ Health A VL - 65 IS - 16 N2 - Blasting sand is used for abrasive blasting, but its inhalation is associated with pulmonary inflammation and fibrosis. Consequently, safer substitute materials for blasting sand are needed. In a previous study from this laboratory, the comparative pulmonary toxicity of five abrasive blasting substitutes and blasting sand was reported. In this study, the pulmonary toxicity of blasting sand was compared to five additional abrasive blasting substitutes: steel grit, copper slag, nickel slag, crushed glass, and olivine. Exposed rats received by intratracheal instillation 10 mg of respirable-size particles of blasting sand or an abrasive blasting substitute, while controls were instilled with vehicle. Pulmonary inflammation, damage, and fibrosis were examined 28 d postexposure. Pulmonary inflammation was monitored by determining bronchoalveolar lavage polymorphonuclear cell counts and alveolar macrophage activation by chemiluminescence. Pulmonary damage was assessed by acellular bronchoalveolar (BAL) fluid serum albumin concentrations and lactate dehydrogenase activities. Histological examination of lung tissue samples was made to assess the severity and distribution of pulmonary fibrosis, alveolitis, and alveolar epithelial cell hypertrophy and hyperplasia. In comparison to blasting sand, olivine exposed rats had higher levels of pulmonary inflammation and damage with a similar level of fibrosis. Steel grit-exposed rats had lower levels of pulmonary inflammation and damage, and did not develop fibrosis. However, steel grit-exposed rats had a level of epithelial cell hypertrophy and hyperplasia similar to blasting sand. The other abrasive blasting substitutes gave a mixed profile of toxicity. The data demonstrate that steel grit produced less acute pulmonary toxicity than blasting sand or any of the other abrasive blasting substitutes. Notwithstanding, the data also suggest that chronic exposure to steel grit may pose a health risk due to its effects on epithelial cell proliferation in the lung. SN - 1528-7394 UR - https://www.unboundmedicine.com/medline/citation/12167212/Comparative_pulmonary_toxicity_of_blasting_sand_and_five_substitute_abrasive_blasting_agents_ L2 - https://www.tandfonline.com/doi/full/10.1080/152873902760125363 DB - PRIME DP - Unbound Medicine ER -