The magnetic susceptibility of the upper soil horizons in the city of Moscow was studied by the itinerary, key, and transect methods. Statistical regularities were found for the magnetic susceptibility of soils developed under urban conditions. Kappametric measurements can be used for the rapid detection of techno-genically contaminated soils on large (the whole city) and small (separate plots) areas of the territory studied. The delineation of areas on the basis of their magnetic susceptibility (minimum, maximum, and average values) was proposed for mapping contaminated territories.
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