Assessment of Selected Heavy Metals Concentration Level of Drinking Water in Gazer Town and Selected Kebele, South Ari District, Southern Ethiopia

Table 5

Compression of studied samples with different guidelines for drinking water quality (for health risk and aesthetic value) set by different national and international organizations.

Elements	Tested method	Standard requirement by different organization				Condition of studied samples Gazer town	Condition of studied samples Aynalem Kebele
		Max (μg/L)
		Ethiopia, 2011	USEPA, 2008	WHO, 2011	NewZealand, 2008
Cu	ICP-OES	2000	1300	2000	2000	Safe	Safe
Cd	ICP-OES	3	5	3	4	Safe	Not safe
Cr	ICP-OES	50	100	50	50	Safe	Not safe
Zn	ICP-OES	5000	5000	5000	1500	Safe	Safe
Mn	ICP-OES	500	50	400	400	Safe	Not safe
Fe	ICP-OES	0.3	300	300	200	Safe	Not safe
Co	ICP-OES	200	100	20	1000	Safe	Safe
Pb	ICP-OES	15	15	10	10	Not safe	Not safe

Source for international standards and Mebrahtuet al., (2011) [3].