Impacts of Heavy Metal Pollution on Ethiopian Agriculture: A Review on the Safety and Quality of Vegetable Crops

Table 1

Maximum amount of soil-derived metal influxes in vegetable tissues.

Leafy crops	Metallic elements	Farmlands
		Kuskuam (Gondar) (%)	Burayu (%)	Ziway (Ethioflora) (%)
Lettuce crop	Cd	28	36	14
	Cr	3	2	9
	Pb	7	7	7
	Zn	41	42	30
Ethiopian kale	Cd	47	42	11
	Cr	2	2	19
	Pb	3	4	9
	Zn	44	37	35
Swiss chard	Cd	26.1	2	—
	Cr	1.09	39	—
	Pb	36.02	1	—
	Zn	2.08	36	—

Source: reference [55].