Fly ash concentrations in philadelphia aerosol determined by electron microscopy
| Autor: | T. G. Dzubay, Yaacov Mamane |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Environmental Engineering
Chemistry Scanning electron microscope business.industry Ecological Modeling Nucleopore filter fungi Mineralogy Fraction (chemistry) complex mixtures Pollution Aerosol Atmosphere chemistry.chemical_compound Fly ash Environmental chemistry Environmental Chemistry Coal Sulfate business Water Science and Technology |
| Zdroj: | Water, Air, and Soil Pollution. 37:389-405 |
| ISSN: | 1573-2932 0049-6979 |
| DOI: | 10.1007/bf00192949 |
| Popis: | In a study to differentiate between coal-fly ash and minerals in the atmosphere, samples were collected on Nuclepore filters in dichotomous samplers and analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry. The samples included ambient aerosol from two sites, resuspended soil, and emissions from coal- and oil-fired power plants in the Philadelphia area. Fly ash and minerals were identified by observing high abundances of Al, Si, K, Ca, Ti, and Fe in individual particles, and their mass concentrations were estimated from measured dimensions and an assumed density. Fly ash was distinguished from minerals by morphology. Sulfate was the major component of the fine fraction ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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