Abstract
Dust particles were generated during the separation process of mineral sands to obtain rutile, ilmenite, zircon and monazite concentrates. Aerosol samples were collected at the village and during the reprocessing phase of ilmenite. A cascade impactor with six stages was used to collect mineral dust particles with aerodynamic diameter in the range of 0.64 to 19.4 μm. Analyses of aerosol samples and lichen samples showed that the inhabitants of the Buena village were exposed to airborne particles in the fine fraction of aerosols. By employing the 252Cf‐PDMS technique the chemical compound of the elements found in the mineral dust particles samples, in the cerium oxide samples and in the concentrate of monazite samples were identified. The mass spectra (252Cf‐PDMS technique) of dust samples showed the presence of the thorium silicate, thorite and zircon in the fine fraction of aerosols. The 252Cf‐PDMS technique was, also, used to characterize urine sample from a inhabitant of the village. The results showed ...
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