Table 2.

The calculated rates of ion release from the Mg-doped BGs.

Time (h)	Ion Release Rate (mg/L h)
	K+	Na+	Si4+	Ca2+	P5+	Mg2+
0–24	0	1.92	2.00	1	−0.29	0.54
24–72	0.33	0.04	2.12	0.44	−0.08	0.04
72–168	0.02	0.03	−0.80	0.06	−0.14	0.16