Hydrochemical Characteristics and Genetic Analysis of Shallow High-Fluorine Groundwater in Fuyang River Basin

Table 1

Main ion contents of shallow groundwater in Fuyang River Basin.

	Parameters	pH	TDS	SO4^2-	Cl^-	HCO3^-	CO3^2-	NO3^-	K^+	Na^+	Ca^2+	Mg^2+	F^-
All samples ()	Mean value	7.77	4908.92	1345.10	1700.79	429.13	3.32	2.00	9.84	1134.36	228.40	339.56	0.81
	Maximum value	9.59	17800.00	5532.84	6480.00	1167.78	43.31	19.67	54.14	4332.90	843.32	1570.99	3.14
	Minimum value	7.13	179.95	24.56	19.78	85.10	0.07	0.01	0.94	32.00	3.77	3.27	0.01
Samples  mg·L^-1 ()	Mean value	7.54	4036.12	1033.04	1413.45	638.09	0.42	0.12	5.45	1094.69	146.34	259.55	1.93
	Maximum value	7.98	6700.00	2148.67	2720.00	1167.78	0.76	0.43	12.65	1844.26	287.38	450.99	3.14
	Minimum value	7.13	1838.64	324.91	358.90	272.69	0.07	0.01	1.10	475.00	10.43	102.00	1.10

Note: unit mg·L^-1.