The deposition of dust and fine aerosols from mining activities requires dedicated monitoring programmes

The monitoring of airborne deposition of dust and contaminants from the mining and processing of ores is also an important part of environmental monitoring.

Labtium offers methods for analysis of dust and aerosol samples collected by different collectors e.g. PM2.5,,PM10 , high volume methods and filters as well as samples collected during monitoring of particulate fall-out by horizontal deposit gauges.

The decomposition method for different filter types is selected by sample type and components to be analysed.

Nitric acid extraction (Method 501M) is suitable for all filtering materials e.g. cellulose, fibreglass, Teflon.

For determination of total concentrations of samples collected on Teflon and polycarbonate filters we recommend hydrofluoric/nitric acid decomposition (Method 317M).

Microwave oven-assisted dissolution in hydrofluoric/nitric acid in accordance with standard SFS-EN 14385 (Method 314M) is particularly suited to the determination of samples collected on quartz-fibre filters.

It has been found that filter materials contain considerable concentrations of many elements. We recommend that the filter material should be analysed before use.

Instrumental analyses are conducted by using ICP-MS- and ICP-OES -techniques. The results can be given as concentrations of element per filter, per cubic metre of air, or per a solid sample collected on the filter/impactor.

A large selection of additional analyses are also provided.

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Lea Hämäläinen
Business Unit Manager
Tel. 040 720 2231
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