Crowd Sensing Urban Healthy Street Monitoring Based on Mobile Positioning System

Table 4

Correlation coefficient table.

Correlation coefficient	PM2.5	PM10	NO2	SO2	O3	CO
PM2.5	1.00	0.95	0.54	0.45	−0.32	0.76
PM10	0.95	1.00	0.79	0.67	0.03	0.52
NO2	0.54	0.79	1.00	0.69	−0.45	0.47
SO2	0.45	0.67	0.69	1.00	0.41	0.52
O3	−0.32	0.03	−0.45	0.41	1.00	−0.88
CO	0.76	0.52	0.47	0.52	−0.88	1.00