PM_2.5/PM₁₀ Ratios in Eight Economic Regions and Their Relationship with Meteorology in China

Table 3

Spatial heterogeneity of PM_2.5/PM₁₀ among eight economic regions.

	Mean	CV	NR	NCA	ECA	SCA	MYR	MRYR	SC	BNC
NR	0.586	0.233		0.138	0.151	0.138	0.162	0.151	0.125	0.165
NCA	0.577	0.241	0.390		0.145	0.154	0.148	0.158	0.138	0.180
ECA	0.633	0.186	0.196	0.269		0.136	0.196	0.101	0.113	0.204
SCA	0.553	0.150	0.154	−0.074	0.097		0.150	0.127	0.069	0.137
MYR	0.480	0.233	0.437	0.587	0.263	0.160		0.193	0.154	0.100
MRYR	0.625	0.213	0.294	0.171	0.488	0.330	0.401		0.108	0.199
SC	0.585	0.129	0.283	0.069	0.197	0.594	0.368	0.389		0.153
BNC	0.456	0.190	0.463	0.263	0.187	0.350	0.603	0.404	0.478

Note. All Pearson correlation coefficients were significant at the 0.01 levels (2-tailed). Mean values are in the second column, coefficients of variance (CV) are in the third column, Pearson correlation coefficients are in the lower left (bold), and coefficients of divergence (COD) are in the upper right.