Table 4f.

Inter-site Spearman Correlations of Daily Means for NO_x, Based on Measurements Made from September 8, 2014, to January 5, 2015^a

	NOx_RDS	NOx_EPD	NOx_NDI	NOx_NDO	NOx_RFT	NOx_FDI	NOx_FDO	NOx_JST
NOx_RDS		0.72	0.8	0.85	0.66	0.62	0.61	0.64
NOx_EPD			0.70	0.70	0.6	0.58	0.58	0.49
NOx_NDI				0.93	0.69	0.68	0.64	0.62
NOx_NDO					0.71	0.67	0.67	0.64
NOx_RFT						0.8	0.81	0.79
NOx_FDI							0.96	0.78
NOx_FDO								0.78

^a Intensity of shading indicates relative strength of linear association.