INVESTIGADORES
PANEBIANCO Juan Esteban
congresos y reuniones científicas
Título:
Dynamics of PM10 emission efficiency and vertical entrainment from fugitive dust sources in rural areas: a wind tunnel experiment.
Autor/es:
PANEBIANCO J. E.; MARIANO J. MENDEZ; BUSCHIAZZO, D.E,
Lugar:
Lanzhou
Reunión:
Congreso; VIII International Conference on Aeolian Research; 2014
Institución organizadora:
International Society for Aeolian Research
Resumen:
Unpaved roads and agricultural soils can be important sources of wind generated dust and PM10 in rural areas. Unpaved roads are composed mainly of sand sized loose particles and low PM10 bulk content, while agricultural soils are composed mainly of aggregates with higher PM10 bulk content. PM10 and sediment mass fluxes were measured on one unpaved road and two agricultural soils. Friction wind speeds of 0.2 m/sec and 0.3 m/sec were simulated in a 4m long; 0.6m wide and 1 m high wind tunnel during three consecutive ten minute periods under a supply limited saltation design. Point measurements at different heights and the subsequent integration of these values allowed a comparison of the horizontal and vertical fluxes under the control volume principle. The total sediment flux, emission rate and concentration profiles on the road surface showed higher positive responses to an increment of the wind speed than the more stable agricultural soils. Sediment loss rate and PM10 emission rate were always linearly correlated (R2>0.89, p