Table 4.

Correlation analyses results of quarterly data.

Items	First Quarter (Q1)		Second Quarter (Q2)		Third Quarter (Q3)		Fourth Quarter (Q4)
	PM2.5	Ozone	PM2.5	Ozone	PM2.5	Ozone	PM2.5	Ozone
AR_All	0.104	0.099	0.125	0.057	0.116	−0.009	0.053	0.108
AR_Black	0.012	0.073	0.142	−0.023	0.054	−0.135	0.032	0.026
AR_White	0.108	0.063	0.083	0.031	0.041	0.001	0.039	0.063
AR_Hispanic	0.177 *	−0.042	0.014	0.151	0.147	0.119	0.004	0.018
AR_Male	0.050	−0.027	0.038	0.137	0.088	0.033	−0.045	−0.072
AR_Female	0.031	0.001	0.146	−0.253 **	0.075	0.072	0.090	0.092
AR_LT_5Y	−0.051	0.086	0.070	−0.063	−0.021	−0.103	0.004	0.041
AR_5–65Y	−0.055	−0.054	0.157	−0.162 *	0.004	−0.144	0.173 *	−0.109
AR_GT_65Y	0.077	−0.012	0.115	−0.027	0.024	−0.088	0.104	−0.120

** Correlation is significant at the 0.01 level (2-tailed); * Correlation is significant at the 0.05 level (2-tailed).