engleski

Arsenic in agricultural and graizing land soils of Europe

Arsenic concentrations are reported for the <2 mm fraction of ca. 2200 soil samples each from agricultural (Ap horizon, 0–20 cm) and grazing land (Gr, 0–10 cm), covering western Europe at a sample density of 1 site/2500 km2. Median As concentrations in an aqua regia extraction determined by inductively coupled plasma emission mass spectrometer (ICP-MS) were 5.7 mg/kg for the Ap samples and 5.8 mg/kg for the Gr samples. The median for the total As concentration as determined by X-ray fluorescence spectrometry (XRF) was 7 mg/kg in both soil materials. Maps of the As distribution for both land-use types (Ap and Gr) show a very similar geographical distribution. The dominant feature in both maps is the southern margin of the former glacial cover seen in the form of a sharp boundary between northern and southern European As concentrations. In fact, the median As concentration in the agricultural soils of southern Europe was found to be more than 3-fold higher than in those of northern Europe (Ap: aqua regia: 2.5 vs. 8.0 mg/kg ; total: 3 vs. 10 mg/kg). Most of the As anomalies on the maps can be directly linked to geology (ore occurrences, As-rich rock types). However, some features have an anthropogenic origin. The new data define the geochemical background of As in agricultural soils at the European scale.

arsenic ; agricultural and grazing land soils ; Europe ; EGS GEMAS Project

Svi članovi GEMAS tima sudjelovali su u izvođenju EuroGeoSurveys Geochemistry Expert Group projekta „Geochemistry of Agricultural and Grazing Land Soils in Europe“ i u intereptaciji rezultata za pojedinu zemlju. GEMAS Project Team: Albanese, S., Andersson, M., Arnoldussen, A., Baritz, R., Batista, M.J., Bel-lan, A., Birke, M., Cicchella, D., Demetriades, A., Dinelli, E., De Vivo, B., De Vos, W., Duris, M., Dusza-Dobek, A., Eggen, O.A., Eklund, M., Ernsten, V., Filzmoser, P., Finne, T.E., Flight, D., Forrester, S., Fuchs, M., Fugedi, U., Gilucis, A., Gosar, M., Gregorauskiene, V., Gulan, A., Halamić, J., Haslinger, E., Hayoz, P., Hobiger, G., Hoffmann, R., Hoogewerff, J., Hrvatović, H., Husnjak, S., Janik, L., Johnson, C.C., Jordan, G., Kirby, J., Kivisilla, J., Klos, V., Krone, P., Kwecko, P., Kuti, L., ladenberger, A., Lima, A., Locutura, J., Lucivjansky, P., Mackovych, D., Malyuk, B.I., Maquil, R., McLaughlin, M., Meuli, R.G., Miošić, N., Mol, G., Negrel, P., O'Connor, P., Oorts, K., Ottesen, R.T., Pasieczna, V., Petersell, V., Pfleiderer, S., Ponavič, M., Prazeres, C., Rauch, U., Reimann, C., Salpeteur, I., Schedl, A., Scheib, A., Schoeters, I., Sefcik, P., Sellersjo,