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. Author manuscript; available in PMC: 2010 Sep 1.
Published in final edited form as: Chemosphere. 2009 Jun 4;77(1):140–147. doi: 10.1016/j.chemosphere.2009.04.068

Table 3.

Enrichment factors of analyzed samples from Nacozari.

Sample type Enrichment factors (range)
Mn Ni Cu Zn As Rb Sr Zr Ba Hg Pb
Road dust 0.5-0.6 0.1-1.2 8.2-12 2.3-3 2.7-4 0.1-1.3 0.02-3 0.2-0.5 0.8-1.5 160 1.7-2
Residential soils 0.5-0.8 1.7-3.2 4-27 1-4.5 4-10 1-2.3 1.7-4 0.1-0.3 1.2-1.5 360-516 1-3
Efflorescence salts 132-135 17.7-18.6 97413-9982 844-864 13.8-20.1 5-5.03 0.09-0.2 0.06 13.5-15.2 789 0.9-2
Soils 0.5-1.4 2.5-2.8 2.3-5.5 0.9-1.7 2.6-2.7 0.3-0.9 2.8-6 0.1-0.4 1.2-1.4 279 0.6-1.3