Metal Content in Dandelion (Taraxacum officinale) Leaves: Influence of Vehicular Traffic and Safety upon Consumption as Food

Table 5

Mean, median, and ranges of total concentrations (mg/kg) in soils (samples 1–12) and reference values [19] for maximum allowable concentrations in soils in residential (“A” limit) and industrial (“B” limit) areas.

	Cd	Cr	Cu	Fe	Mn	Pb	Zn
Mean	0.21	76.1	35.5	23,070	587	23.3	92.0
Median	0.21	73.9	26.8	21,930	524	20.2	90.3
Range	0.12–0.34	49.4–131	1.60–86.0	2,300–38,070	269–1,070	14.9–94.2	59.3–14.6
“A” limit	2	150	120	—	—	100	150
“B” limit	800	800	600	—	—	1,000	1,500