Table 1.

Fluoride concentration (mg/L) in drinking water of Larestan region, Fars province, Iran.

Numbera	Fluoride concentration	Numbera	Fluoride concentration	Numbera	Fluoride concentration
	(mg/L)		(mg/L)		(mg/L)
1	2.38	32	0.67	63	1.07
2	1.92	33	0.62	64	1.3
3	2.64	34	0.35	65	1.41
4	2.42	35	0.63	66	0.91
5	2.14	36	0.64	67	0.76
6	1.54	37	0.65	68	1.14
7	1.56	38	1.65	69	1.28
8	2.66	39	0.8	70	1.96
9	2.84	40	0.92	71	2.35
10	2.66	41	0.85	72	2.29
11	2.86	42	1.33	73	1.83
12	3.46	43	0.45	74	2.02
13	3.44	44	1.48	75	1.63
14	2.36	45	1.53	76	1.08
15	3.28	46	1.13	77	1.72
16	2.08	47	1.1	78	2.48
17	2.28	48	1.28	79	2.73
18	2.95	49	1.39	80	1.84
19	2.8	50	1.7	81	1.65
20	2.3	51	1.9	82	2.1
21	2.58	52	1.59	83	1.95
22	1.62	53	0.77	84	2.1
23	2	54	0.51	85	2.88
24	2.4	55	0.86	86	1.23
25	0.8	56	1.65	87	1.52
26	0.64	57	0.83	88	1.44
27	0.96	58	0.85	89	1.67
28	0.64	59	2.02	90	1.46
29	0.96	60	1.71	91	1.43
30	2.02	61	1.43	92	2.73
31	0.71	62	1.7
WHO guideline	0.5–1.5

^aNumber of supply sources for drinking water.