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The concentrations and chemical composition of PM were explored in an underground chrome mine in Kemi

The concentrations and chemical composition of PM were explored in an underground chrome mine in Kemi

Particulate matter (PM) from mining operations, engines and ore processing may have adverse effects on health and well-being of workers and population living nearby. This study characterized PM in an underground chrome mine in Kemi, Northern Finland.

The concentrations and chemical composition of PM were explored in order to identify sources, formation mechanisms and post-emission processes of particles in the mine air. A majority of sub-micrometer particles (<1 µm in diameter, PM1) originated from diesel engine emissions whereas another sub-micrometer particle type originated from the combustion products of explosives (e.g. nitrate and ammonium). Regarding the analyzed elements (e.g. Al, Si, Fe, Ca), many of them peaked at >1 µm indicating mineral dust origin.

More information:

Sanna Saarikoski, sanna.saarikoski@fmi.fi

Saarikoski, S., Teinilä, K., Timonen, H., Aurela, A., Laaksovirta, T., Reyes, F., Vásques, Y., Oyola, P., Artaxo, P., Pennanen, A. S., Junttila, S., Linnainmaa, M., Salonen, R. O. & Hillamo, R. Particulate matter characteristics, dynamics, and sources in an underground mine. Aerosol Sci. Technol. 52, 114–122, 2018.

http://www.tandfonline.com/doi/full/10.1080/02786826.2017.1384788

 


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