Groundwater Quality Assessment in Urban Areas of Malawi: A Case of Area 25 in Lilongwe

Table 3

Concentration of anions in sampled water.

Sample ID	Cl^− (mg/L)	F^− (mg/L)	(mg/L)	(mg/L)	(mg/L)
P1	152.0	2.67	46.32	0.047	4.711
P2	218.3	0.93	0.38	0.039	6.868
P3	303.1	0.67	58.92	0.042	86.686
P4	378.9	0.52	40.22	0.048	8.753
P5	140.4	2.37	38.83	0.081	5.602
P6	213.3	1.78	17.32	0.087	9.865
P7	171.9	0.42	33.09	0.039	68.563
P8	313.1	0.88	3.46	0.045	20.746
P9	119.7	1.63	22.72	0.057	63.512
P10	333.2	1.22	54.73	0.049	2.414
Mean	234.18 ± 91.2	1.31 ± 0.8	31.60 ± 20.2	0.053 ± 0.0	27.77 ± 32.1
MBS	150	2.0	50	0.5	250
WHO	250	1.5	50	0.5	250