Table 3. Correlation (R²) between the tracer species (ethane, C₂Cl₄) and the various RN species (ppb).

	Ethane (R2)	C2Cl4 (R2)
NH3	0.01	0.01
NOy	0.33	0.59
NO	0.003	2E-4
PAN	0.27	0.35
MeONO2	0.05	0.05
EtONO2	0.68	0.42
i-PrONO2	0.79	0.47
2-BuONO2	0.85	0.44
2-PenONO2	0.87	0.42
3-PenONO2	0.86	0.44