The data of Total Petroleum Hydrocarbons (TPH) have been considered to map the petroleum fall-out on soils from the AGIP Trecate-24 drilling plant (Trecate, NW Italy) that blew out crude oil during 36 hours in February 1994. From a geostatistical analysis a satisfactory variogram model was found. The TPH in the topsoils were spatially distributed in an isotropic way and from a Kriging estimate a map of about 100 Km2 was drawn. The fall-out resulted mainly centred around the source, but the agricultural area as far as 5 Km showed traces of the pollution.
First geostatistical estimate of the petroleum fallout on soils after the Trecate accident (NW Italy).
ZANINI, Ermanno;BONIFACIO, Eleonora;
1994-01-01
Abstract
The data of Total Petroleum Hydrocarbons (TPH) have been considered to map the petroleum fall-out on soils from the AGIP Trecate-24 drilling plant (Trecate, NW Italy) that blew out crude oil during 36 hours in February 1994. From a geostatistical analysis a satisfactory variogram model was found. The TPH in the topsoils were spatially distributed in an isotropic way and from a Kriging estimate a map of about 100 Km2 was drawn. The fall-out resulted mainly centred around the source, but the agricultural area as far as 5 Km showed traces of the pollution.
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