Effect of contamination sources on the rate of zinc, copper and nickel release from various soil ecosystems

Bulletin of the National Research Centre

Table 3 Total concentrations of potential toxic elements (PTEs) in the studied soils in (mg kg⁻¹)

Soil sample	Cu	Ni	Zn	Co	Cr	As	Mn	Mg	Fe	Pb	Cd
Kombora
UC*	90.26	40.50	400	28.9	573.90	170.33	115.13	377.40	1459.73	44.00	12.43
C*	46.68	18.60	350	31.45	402.15	113.12	98.12	322.16	1365.75	38.02	13.05
Abo Rawash
UC*	86.464	73.79	89.50	38.53	263.30	430.33	193.83	413.13	1615.40	62.80	15.53
C*	53.06	77.15	111.93	56.13	365.53	304.33	509.30	548.93	2127.40	66.96	14.73
Kafr-Elsheikh
UC*	31.20	115.73	112.93	58.20	386.80	432.00	601.43	534.26	2162.40	47.43	14.40
C*	29.83	90.83	80.13	60.30	413.50	63.00	498.26	507.40	2181.40	31.30	11.93