Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China

Table 3

Varimax-rotated principal factor analysis of ions in the precipitation of Wanzhou.

Variable	Factor 1	Factor 2	Factor 3	Communality
Cl^−	0.08	0.15	0.89	0.83
K^+	0.15	−0.01	0.92	0.87
Mg^2+	0.95	0.15	0.29	0.94
Na^+	0.54	0.44	0.37	0.72
	−0.01	0.91	0.07	0.84
	0.45	0.81	0.06	0.86
	0.59	0.65	0.16	0.80
Ca^2+	0.92	0.26	0.13	0.93
F^−	0.47	0.72	0.07	0.74
Variance (%)	33.6	31.3	20.5
Cumulative (%)	33.6	64.9	85.4