Impact Assessment of Phosphogypsum Leachate on Groundwater of Sfax-Agareb (Southeast of Tunisia): Using Geochemical and Isotopic Investigation

Table 2

Chemical composition of PG leachate in May 2014.

Parameters	Leachate PG	Tunisian standard for liquid discharge (NT 106-002)
EC	22700
pH	1.3	6.5–8.5
F	3500	3
	6730	0.05
	1357	500
	3240	600
	198	200
Cl^-	1560	600
Na^+	2000	500
K^+	139	50
Cr	1.2	0.5
Cd	0.8	0.005
Zn	4	5
Al	4	5
Cu	0.5	0.5
Fe	6	1

Units in mg/L except pH and EC (µS/cm).