Lead contents of coal,coal ash and fly ash |
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| Authors: | C Block R Dams |
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| Institution: | 1. Institute for Nuclear Sciences, Rijksuniversiteit Gent, Proeftuinstraat 86, B-9000, Gent, Belgium
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| Abstract: | Flameless atomic absorption spectrometry is applied for the determination of Pb in coal, coal ash and fly ash. Lead concentrations in coal and coal ash ranging from respectively 7 to 110 µg g?1 and 120 to 450 µg g?1 are found. A mean concentration of 1520 µg g?1 in fly ash corresponding to a concentration of 117 µg m?3 in the effluent gas suggests the importance of coal combustion as an atmospheric source of Ph. The contribution of coal combustion to the total Pb emissions is conservatively estimated at 6%. |
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