Application of principal component analysis in the pollution assessment with heavy metals of vegetable food chain in the old mining areas

Table 3 Levels of heavy metals in vegetables from contaminated and reference areas (average values in mgkg ^-1 , fresh matter) adapted after Harmanescu et al., 2011

Vegetables and location/Metals	Code	Fe	Mn	Zn	Cu	Ni	Cd	Pb
Root parsley R	R1	221.80	37.83	45.82	6.88	1.28	0.20	15.78
Root parsley M	M1	99.02	8.10	7.74	6.66	0.49	0.04	0.66
Root parsley Ref	Ref1	48.78	3.27	3.52	1.22	0.19	0.01	0.08
Root carrot R	R2	29.97	3.06	4.93	1.77	0.18	0.08	2.11
Root carrot M	M2	31.89	2.22	3.18	1.54	0.08	0.03	0.09
Root carrot Ref	Ref2	17.31	1.43	2.05	0.74	0.04	0.01	0.06
Onion R	R3	15.26	4.07	10.91	1.37	0.21	0.06	0.50
Onion M	M3	1.56	0.32	0.78	0.25	0.01	0.01	0.03
Onion Ref	Ref3	4.65	1.34	2.01	0.43	0.03	0.01	0.04
Leaf parsley R	R4	73.17	5.88	9.39	1.77	0.30	0.09	1.97
Leaf parsley M	M4	106.75	9.72	10.44	4.79	1.87	0.05	0.50
Leaf parsley Ref	Ref4	104.03	7.32	9.13	1.03	0.38	0.03	0.28
Leaf carrot R	R5	14.25	1.38	1.36	0.29	0.11	0.01	0.20
Leaf carrot M	M5	51.45	5.57	5.61	2.12	0.38	0.04	0.12
Leaf carrot Ref	Ref5	31.59	3.13	3.77	0.40	0.17	0.01	0.03
Cabbage R	R6	60.11	10.47	16.30	1.36	0.70	0.12	0.90
Cabbage M	M6	31.53	9.15	8.51	2.77	0.33	0.06	0.25
Cabbage Ref	Ref6	16.06	3.85	3.28	0.45	0.13	0.01	0.05
Lettuce R	R7	35.88	8.33	14.46	1.86	0.28	0.09	0.62
Lettuce M	M7	13.60	4.12	5.14	2.22	0.18	0.09	0.21
Lettuce Ref	Ref7	16.90	3.46	5.32	0.76	0.10	0.02	0.08
Cucumber R	R8	2.39	6.73	8.96	0.98	0.28	0.13	0.72
Cucumber M	M8	2.38	6.01	1.39	2.42	0.54	0.15	0.37
Cucumber Ref	Ref8	1.70	0.45	0.95	0.45	0.23	0.03	0.16
Green Bean R	R9	58.85	7.06	13.22	1.05	0.49	0.06	0.35
Green Bean M	M9	21.65	4.77	10.17	1.45	0.52	0.07	0.19
Green Bean Ref	Ref9	26.19	6.45	9.68	0.29	0.22	0.03	0.07

ISSN: 2661-801X