Fine Particulate Matter Concentrations during Independence Day Fireworks Display in the Lower Rio Grande Valley Region, South Texas, USA

Table 4

Correlation Coefficients for PM_2.5 concentrations between the study locations and the CAMS sites.

	B1	B2	B3	B4	B5	E1	E2	E3	W1	W2	PI	C43	C80	C323
B1	1
B2	0.923	1
B3	0.922	0.955	1
B4	0.919	0.937	0.861	1
B5	0.940	0.915	0.934	0.844	1
E1	0.522	0.519	0.524	0.531	0.606	1
E2	0.564	0.496	0.512	0.521	0.601	0.954	1
E3	0.527	0.437	0.451	0.500	0.510	0.915	0.952	1
W1	0.416	0.384	0.424	0.409	0.478	0.652	0.637	0.557	1
W2	0.639	0.572	0.583	0.627	0.667	0.867	0.874	0.795	0.772	1
PI	0.839	0.777	0.743	0.803	0.767	0.485	0.525	0.522	0.352	0.602	1
C43	0.275	0.246	0.292	0.233	0.361	0.640	0.607	0.557	0.474	0.519	00.178	1
C80	0.820	0.701	0.752	0.716	0.784	0.638	0.693	0.686	0.523	0.661	0.704	0.506	1
C323	0.510	0.411	0.455	0.399	0.519	0.463	0.547	0.508	0.487	0.501	0.601	0.292	0.680	1

Correlation is significant at the 0.01 level (2-tailed), N = 71-72 for all pairs.