Assessing Physiochemical Characteristics of Agricultural Waste and Ready Compost at Wadi Al-Far’a Watershed of Palestine

Table 5

Heavy metal contents of ready compost used for agriculture in the WFW.

Sample no	Heavy metal content (mg/kg)
	Zn	Mn	Fe	Cr	Cd	Pb
C1	0.85	433.90	308.28	2.03	4.48	0.00
C2	0.98	3.93	283.60	5.50	1.00	5.18
C3	0.00	357.05	259.83	2.80	1.33	0.95
C4	0.83	318.73	273.95	3.95	1.68	0.23
C5	0.48	271.55	308.28	5.10	0.83	1.50
C6	1.55	362.25	234.53	2.03	0.20	4.08
C7	2.08	90.83	301.20	0.00	3.50	8.30
C8	1.13	15.25	226.63	0.00	1.50	7.38
C9	1.13	367.23	332.60	0.00	2.83	6.45
C10	0.00	68.98	314.23	0.00	8.68	8.68
C11	0.00	139.78	313.98	0.00	3.90	3.53
C12	0.00	276.70	327.00	0.00	3.98	11.43
C13	0.00	32.28	328.38	0.00	2.70	18.13
C14	0.00	45.73	313.45	0.00	1.95	8.48
C15	0.00	117.33	313.83	0.00	0.00	10.88
Min	0.00	3.93	226.63	0.00	0.00	0.00
Average	0.60	193.43	295.98	1.43	2.57	6.35
St. Dev.	0.68	151.70	33.27	2.02	2.19	4.96
Max	2.08	433.90	332.60	5.50	8.68	18.13
PSI	2500			400	20	300
Iranian standard	1300			150	10	200
German standard	300			70	1	100
African standard	100	800	2500	50	5	30

Minimum values are indicated in italics. Maximum values are indicated in bold.