Hydrogeochemistry of Fluorine in Groundwater in Humid Mountainous Areas: A Case Study at Xingguo County, Southern China

Table 3

Chemical composition of various groundwater systems in the study area.

Groundwater system	Sample number	Water chemical composition (mg/L)										Chemical type of groundwater
		K^+	Na^+	Ca^2+	Mg^2+				Cl^−		TDS
Suishui River (III2-1-2)	SJ051	3.10	8.84	7.13	0.30	43.01	0.00	2.23	3.54	20.55	88.7	Na·Ca
	SJ014	1.21	4.49	5.01	0.11	37.63	0.00	2.06	0.57	0.12	51.2	Ca·Na
	GJ002	1.09	6.99	10.34	0.38	53.76	0.00	3.98	1.74	0.17	78.5	Ca·Na
	SJ070	0.56	2.48	4.06	1.30	37.63	0.00	2.60	0.61	0.90	50.1	Ca·Na
	GJ003	0.78	2.48	15.42	2.61	69.89	0.00	3.69	1.12	0.10	96.1	Ca
	SJ104	0.77	2.03	6.58	2.08	37.63	0.00	2.50	1.03	0.11	52.7	Ca·Mg·Na
	SJ058	1.27	1.37	5.03	0.45	26.88	0.00	1.80	3.47	7.45	47.7	Ca·Na
	SJ036	6.43	3.77	21.01	3.54	83.33	2.64	6.62	1.80	1.52	130.7	Ca·Na
	SJ154	1.69	3.54	7.35	2.66	48.38	5.29	3.77	1.11	0.11	73.9	Ca·Na·Mg
Jianshui River (III3-1-1)	GJ001	0.89	3.92	8.26	2.93	59.13	0.00	5.43	0.61	1.12	82.3	Ca·Mg
	SJ113	7.64	4.59	18.45	4.96	86.01	0.00	8.23	8.19	7.91	146.0	Ca·Na
	SJ184	1.38	11.52	18.32	4.07	94.08	2.64	7.24	1.35	0.10	140.7	Ca·Na
	SQ049	0.56	2.40	5.04	2.01	43.01	0.00	1.61	0.55	0.10	55.3	Ca·Mg
	SJ029	10.80	5.17	23.86	3.26	102.14	0.00	8.65	4.71	13.68	172.3	Ca·Na
Wushu River (III5-1-1)	SQ052	0.91	0.77	12.97	2.11	56.45	2.64	7.88	0.91	1.32	86	Ca

Note: the data in the table is tested by the Nanchang Supervision Center of Mineral Resources, Ministry of Land and Resources, 2017.