Open Access
Table 3
Composition of the different dusts analyzed.
| Dusts | Composition | References |
|---|---|---|
| Silicon dioxide | SiO2 pure. Amorphous silica, nanometric commonly called colloidal silica | [30] |
| Diatomaceous earth pest management company (DE-pro)/Diatomaceous earth litter conditioner (DE-pet)/Diatomaceous earth supermarket insect control (DE-hom) | Siliceous skeleton of unicellular algae, diatoms. Diatomaceous earth corresponds to biogenic amorphous silica. The chemical composition is over 80% SiO2 plus TiO2, Al2O3, Fe2O3, MgO, CaO, Na2O, K2O in various quantity depending on the origin of diatomaceous earth. DE-pet and DE-hom were probably amorphous diatomaceous earth industrially prepared by flux-calcining at high temperature and, consequently, partially crystallized into cristobalite | [14, 26, 27] |
| Sommières earth | Mainly sepiolite (a mineral from the clay group with a fibrous structure) associated with dolomite, quartz and polygorskite |
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