Physical and Chemical Components of Cuba’s Rain: Effects on Air Quality

Table 6

Principal components for the air quality monitoring stations of Contramaestre and Guantanamo.

Ion	Monitoring stations
	Contramaestre			Guantanamo
	1	2	3	1	2	3
Cl^−	0.91	0.16	0.14	−0.13	0.90	0.39
	0.02	−0.11	0.91	0.92	−0.09	−0.11
	0.25	0.33	0.86	0.96	−0.05	−0.16
	−0.03	0.95	0.14	−0.25	0.16	0.92
Na^+	0.92	0.15	0.01	−0.08	0.95	0.18
	0.05	0.10	0.87	0.82	0.24	−0.14
K^+	0.34	0.88	0.18	0.06	0.38	0.88
Mg^2+	0.81	0.20	0.13	0.92	−0.36	0.01
Ca^2+	0.36	0.74	−0.08	0.93	−0.18	0.03
% variance	29	27	27	47	23	21
Probable contribution	Sea salt	Biomass burning/soil	Anthropogenic	Anthropogenic/soil	Sea salt	Biomass burning