Levels of Organochlorine Pesticides and Heavy Metals in Surface Waters of Konya Closed Basin, Turkey

Table 3

Limit values for heavy metals for drinking water quality and protection of freshwater aquatic life, μg/L.

Heavy metals	TRWHC	WHO	USEPA	EU
As	10	10	10	10
Cr	50	50	10	50
Cu	50	50	10	50
Fe	200	300	300	200
Mn	50	500	50	50
Ni	20	—	—	20
Zn	—	—	5000	—