Assessing the risk of soil contamination in the Swiss Jura using indicator geostatistics

摘要: The probability that the concentrations of toxic substances in soil or other medium exceed tolerable maxima at any unsampled place can be estimated by indicator geostatistics. method is developed and used to estimate map risk contamination cadmium, copper lead topsoil a 14.5 km(2) region Swiss Jura. Et combines both direct measurements metal calibration geological map, it shows toxicity least on Argovian rocks. Two approaches are proposed divide into 'safe' 'hazardous' zones basis maps. first declares as contaminated all places where exceeds given threshold. second approach evaluates financial costs might result from wrong declaration after which site allocated class so minimize cost. exposure for humans animals generally greater agricultural land than forest soil, use taken account procedures.