Airborne Particulate Matter (PM) & Ultrafine Particles (UFPs) in Battlefield Scenarios

Research Paper Title

Ultrafine Particle Distribution and Chemical Composition Assessment during Military Operative Trainings.

Background

The assessment of airborne particulate matter (PM) and ultrafine particles (UFPs) in battlefield scenarios is a topic of particular concern.

Methods

Size distribution, concentration, and chemical composition of UFPs during operative military training activities (target drone launches, ammunition blasting, and inert bomb impact) were investigated using an electric low-pressure impactor (ELPI+) and a scanning electron microscope (SEM), equipped with energy-dispersive spectroscopy (EDS).

Results

The median of UFPs, measured for all sampling periods and at variable distance from sources, was between 1.02 × 103 and 3.75 × 103 particles/cm3 for drone launches, between 3.32 × 103 and 15.4 × 103 particles/cm3 for the ammunition blasting and from 7.9 × 103 to 1.3 × 104 particles/cm3 for inert launches. Maximum peak concentrations, during emitting sources starting, were 75.5 × 106 and 17.9 × 106 particles/cm3, respectively. Particles from the drone launches were predominantly composed of silicon (Si), iron (Fe) and calcium (Ca), and those from the blasting campaigns by magnesium (Mg), sulphur (S), aluminum (Al), iron (Fe), barium (Ba) and silicon (Si).

Conclusions

The investigated sources produced UFPs with median values lower than other anthropogenic sources, and with a similar chemical composition.

Reference

Campagna, M., Pilia, I., Marcias, G., Frattolillo, A., Pili, S., Bernabei, M., d’Aloja, E., Cocco, P. & Buonanno, G. (2017) Ultrafine Particle Distribution and Chemical Composition Assessment during Military Operative Trainings. International Journal of Environmental Research and Public Health. 14(6), pp.579. doi: 10.3390/ijerph14060579.

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