Assessment of metals bioavailability to vegetables under field conditions using DGT, single extractions and multivariate statistics

Table 1 General characteristics of soils collected from the study area

Sites		pH	OC (%)	CEC (meq 100g^-1)	Total concentration (mg kg^-1 dw)
					Cu	Zn	Cd
BM	Mean	7.1	3.2	20.0	79.8	550	1.29
	Range	6.7-7.5	1.9-4.8	13.1-25.7	29.1-122	222-833	0.39-2.05
RC	Mean	7.2	2.9	18.6	48.2	393	0.85
	Range	6.8-7.6	1.5-4.0	14.5-22.1	22.8-106	178-660	0.43-1.44
SA	Mean	7.3	4.2	20.6	50.9	394	0.56
	Range	6.9-7.8	3.3-5.4	17.8-24.1	17.3-146	141-491	0.15-1.34
AL*		-	-	-	100	300	3
IL**		-	-	-	200	600	5

* AL-alert level for soil in sensitive (residential and agricultural) areas (Ministerial Order 756:1997).
** IL- intervention level for soil in sensitive (residential and agricultural) areas.

ISSN: 2661-801X