Cited by 486Air Quality and Health ImpactsCoal and Its By-productsOccupational and environmental lung diseases

SOLUBLE TRANSITION METALS MEDIATE RESIDUAL OIL FLY ASH INDUCED ACUTE LUNG INJURY

Kevin L. Dreher, Richard H. Jaskot,·1997·Journal of Toxicology and Environmental Health

Abstract

Identification of constituents responsible for the pulmonary toxicity of fugitive combustion emission source particles may provide insight into the adverse health effects associated with exposure to these particles as well as ambient air particulate pollution. Herein, we describe results of studies conducted to identify constituents responsible for the acute lung injury induced by residual oil fly ash (ROFA) and to assess physical-chemical factors that influence the pulmonary toxicity of these constituents. Biochemical and cellular analyses performed on bronchoalveolar lavage fluid obtained from rats following intratracheal instillation of ROFA suspension demonstrated the presence of severe inflammation, an indicator of pulmonary injury, which included recruitment of neutrophils, eosinophils, and monocytes into the airway. A leachate prepared from ROFA, containing predominantly Fe, Ni, V, Ca, Mg, and sulfate, produced similar lung injury to that induced by ROFA suspension. Depletion of Fe, Ni, and V from the ROFA leachate abrogated its pulmonary toxicity. Correspondingly, minimal lung injury was observed in animals exposed to saline-washed ROFA particles. A surrogate transition metal sulfate solution containing Fe, V, and Ni largely reproduced the lung injury induced by ROFA. Metal interactions and pH were found to influence the severity and kinetics of lung injury induced by ROFA and soluble transition metals. These findings provide direct evidence for the role of soluble transition metals in the pulmonary injury induced by the combustion emission source particulate, ROFA.

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Crossref · 10.1080/009841097160492

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Authors
Kevin L. Dreher, R. H. J.
Venue
Journal of Toxicology and Environmental Health
Published
1997-02
Volume
50
Issue
3
Pages
285-305
ISSN
0098-4108 (ISSN-L)
OpenAlex
W2169046198
Cited by
486
References
32
Citations by year
2026: 4 · 2025: 4 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 5 · 2020: 9 · 2019: 4 · 2018: 5 · 2017: 8 · 2016: 11 · 2015: 17 · 2014: 9 · 2013: 17 · 2012: 13
FWCI
34.31
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Toxicology and Environmental Health (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Coal and Its By-products
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Occupational and environmental lung diseases
Keywords
residual oil fly ash, acute lung injury, iron, nickel, vanadium, pulmonary toxicity, bronchoalveolar lavage fluid, airway inflammation, metal interactions, pH effect, particulate matter pollution
MeSH terms
Acute Disease, Air Pollutants, Animals, Carbon, Chemistry, Physical, Fuel Oils, Inflammation, Lung Diseases, Male, Metals, Particle Size, Solubility, Sulfates, Rats, Sprague-Dawley, Rats, Chemical Phenomena

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