""4.1. Basic Statistics and Normality of Distribution """"4.2. Enrichment Factors (EF) ""; ""4.3. Correlations between Chemical Compositions of Sampling Media ""; ""4.4. Multivariate Statistics ""; ""5. DISCUSSION ""; ""5.1. Natural Distribution of Chemical Elements ""; ""5.1.1. Association of Ti, V, Al, Th, Sc, Fe, Y, Nb, Co, Mn and La ""; ""5.1.2. Association of Ba, Na and La""; ""5.2. Anthropogenic Distribution of Chemical Elements ""; ""5.2.1. Association Pb, Zn, Cd, Sb, Mo, Hg, Sn and Cu ""; ""5.3. Association of Ni, Cr and Co "" |