INVESTIGADORES
CHAPARRO Marcos Adrian Eduardo
congresos y reuniones científicas
Título:
A first approach of traffic-derived pollution on the road Autovia 2 using rock-magnetic studies: a case of study from Argentina
Autor/es:
MARCOS A. E. CHAPARRO; DEBORA C. MARIÉ; CLAUDIA S.G. GOGORZA; ANA M. SINITO
Lugar:
Bojnice Castle, Slovak Republic
Reunión:
Congreso; 11th Castle Meeting New Trends in Geomagnetism Paleo, Rock and Environmental Magnetism; 2008
Institución organizadora:
Geophysical Institute of the Slovak Academy of Science
Resumen:
In this work, we carried out a preliminary
study of traffic-derived pollutants on roads (paved area), road borders and
surroundings areas. The study is focussed on the identification, distribution
and concentration of pollutants and magnetic carriers. The studied road is one
of the most important in Buenos Aires
province, and has a considerable traffic density, of about 5,500 vehicles per
day and reaching about 8,000 vehicles per day at the weekends.
Sampling and in situ magnetic susceptibility (kis) measurements were done in the tollbooth
areas on the road Autovia 2 (Buenos Aires Mar del Plata). Collected
samples of road-deposited sediments and at the roadside soils were prepared and
sub sampled in the laboratory to accomplish several rock-magnetic measurements:
magnetic susceptibility, anhysteric and isothermal remanent magnetisation, and
thermal demagnetisation.
The results of magnetic parameters and their
analyses suggest that the magnetic signal of vehicle-derived emissions is
controlled by a magnetite-like phase. Results of kis show higher magnetic concentration magnetic enhancement in the central area of the tollbooth line,
which is related to higher traffic. In this study, the magnetic susceptibility
parameter seems to be a suitable indicator of traffic-related pollution.
Key words: magnetic screening, magnetic
susceptibility, pollution, road, vehicle emissions