Size dependent cytotoxicity of fly ash particles

Fly ash samples were collected from the electrostatic precipitator of a coal-fired power plant in Hong Kong. The particles of the respirable range (smaller than 10 μm) were divided into 4 groups according to their particle size (mass median aerodynamic diameters). The surface morphology and the meta...

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Bibliographic Details
Published in:Environment international 1988, Vol.14 (6), p.473-477
Main Authors: Liu, W.K., Tam, J.S.K., Wong, M.H.
Format: Article
Language:English
Subjects:
01 COAL, LIGNITE, AND PEAT
016000 - Coal, Lignite, & Peat- Health & Safety
560300 - Chemicals Metabolism & Toxicology
ACID PHOSPHATASE
AEROSOL WASTES
ALUMINIUM
ANIMALS
Applied sciences
ASHES
ASIA
Atmospheric pollution
BIOLOGICAL MARKERS
ELECTRON MICROSCOPY
ELECTROSTATIC PRECIPITATORS
ELEMENTS
ENZYMES
ESTERASES
Exact sciences and technology
FLY ASH
FOSSIL-FUEL POWER PLANTS
GLUCURONIDASE
GLYCOSYL HYDROLASES
HEMIACETAL DEHYDROGENASES
HONG KONG
HYDROLASES
IRON
LACTATE DEHYDROGENASE
MAMMALS
MANGANESE
METALS
MICROSCOPY
O-GLYCOSYL HYDROLASES
OXIDOREDUCTASES
PARTICLE SIZE
PHOSPHATASES
Pollution
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT
RATS
RESIDUES
RODENTS
SCANNING ELECTRON MICROSCOPY
SIZE
THERMAL POWER PLANTS
TOXICITY
TRANSITION ELEMENTS
VERTEBRATES
WASTES
ZINC
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Description
Summary:Fly ash samples were collected from the electrostatic precipitator of a coal-fired power plant in Hong Kong. The particles of the respirable range (smaller than 10 μm) were divided into 4 groups according to their particle size (mass median aerodynamic diameters). The surface morphology and the metal contents (Fe, Mn, Al and Zn) of fly ash particles were examined by a scanning electron microscope and an inductively coupled plasma spectrophotometer, respectively. The particles were very heterogenous in size and shape as well as the concentration of metals. The cytotoxicity of these four groups of fly ash particles was evaluated using an in vitro rat alveolar macrophages culture assay. The viability of alveolar macrophages was lower when incubated with smaller size particles. This relationship was also reflected by the damage of the surface morphology of the cells and the release of cytoplasmic (lactate dehydrogenase) and lysosomal (acid phosphatase and β-glucuronidase) marker enzymes into the culture media.
ISSN:0160-4120
1873-6750
DOI:10.1016/0160-4120(88)90407-2